Locking frame for machining and positioning rear lifting arm of general automobile lifting appliance holding arm

Abstract

The utility model belongs to the technical field of automobile production line equipment, and relates to a locking frame for machining and positioning a rear suspension arm of a general automobile sling holding arm, which comprises a lower beam positioning and locking frame and an upper beam positioning and locking frame which are respectively used for locking and fixing a rear suspension arm lower beam and a rear suspension arm upper beam. The lower beam positioning and locking frame and the upper beam positioning and locking frame are the same in structure and can be interchanged, each of the lower beam positioning and locking frame and the upper beam positioning and locking frame is composed of a first locking screw, a second locking screw, a small screw, a locking pressing plate and a bracket, the first locking screws are arranged on the flexible platform, and the second locking screws, the small screws and the brackets are jointly arranged on the flexible platform; and the locking pressing plate is arranged on the first locking screw rod and the second locking screw rod. The positioning device is scientific and reasonable in structural design, can be used for positioning and fixing the rear lifting arm of the universal automobile lifting appliance holding arm, has the advantages of being convenient, accurate and firm in positioning, capable of effectively improving the machining speed and efficiency and the like, and has high innovativeness.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile production line equipment, and particularly relates to a locking frame for machining and positioning the rear boom of a universal automobile sling arm. Background Technique

[0002] A universal automobile sling is a hoisting equipment used for hoisting different models of automobiles on an automobile mixed production line, mainly composed of an upper frame, a left sling arm, and a right sling arm. The left sling arm and the right sling arm are relatively hinged on the upper frame. The rear boom is an important component on both the left sling arm and the right sling arm, and is installed on the sling arm body through linear bearings, slide rails, and sliders. The rear boom is composed of a lower boom 27, an upper boom 29, an assembly connecting plate 26, a linear bearing sleeve 28, a U-shaped plate, and a slider mounting plate 32; the U-shaped plate includes a U-shaped plate one 30 and a U-shaped plate two 31; the lower boom and the upper boom are respectively connected above and below the linear bearing sleeve, the assembly connecting plate is fixedly installed at the lower end of the lower boom, and a process hole 25 is concentrically made at the lower end of the lower boom; the U-shaped plate one and the U-shaped plate two are symmetrically and fixedly installed on both sides of the top of the upper boom, the slider mounting plate is arranged between the U-shaped plate one and the U-shaped plate two, and slider assembly screw holes 33 are made on the slider mounting plate. After the rear boom is assembled and welded, machining is still required. One is to rough mill the inner wall of the linear bearing sleeve and then finish boring; the second is to mill the two end faces of the linear bearing sleeve flat; the third is to drill screw holes on the end face of the linear bearing sleeve for installing the bearing end cover; when performing the above machining, not only the rear boom needs to be firmly fixed, but also the rear boom needs to be fixed to the same position each time to avoid multiple tool settings during machining, thereby saving tool setting time and improving machining speed and efficiency. In response to the above requirements, our company independently developed and designed a machining positioning tooling for the rear boom of a universal automobile sling, which better solved the previous machining positioning problem of the rear boom. The locking frame for machining and positioning the rear boom of a universal automobile sling is an important part of the machining positioning tooling for the rear boom of a universal automobile sling. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a locking frame for machining and positioning the rear boom of a universal automobile sling, which can position and fix the rear boom of a universal automobile sling, is firmly fixed, is convenient to operate, does not require multiple tool settings during machining, and can effectively improve machining speed and efficiency.

[0004] The utility model solves its technical problems through the following technical solutions:

[0005] A locking frame for machining positioning of the rear boom of a general-purpose vehicle hoist's clamping arm, characterized in that it includes a lower beam positioning and locking frame and an upper beam positioning and locking frame. The lower beam positioning and locking frame and the upper beam positioning and locking frame are respectively used for locking and fixing the lower beam and the upper beam of the rear boom. The lower beam positioning and locking frame and the upper beam positioning and locking frame have the same structure and can be interchanged. They are all composed of a first locking screw, a second locking screw, a small screw, a locking pressure plate, and a bracket. The first locking screw is arranged on the flexible platform, and the second locking screw, the small screw, and the bracket are jointly arranged on the flexible platform. The locking pressure plate is arranged on the first locking screw and the second locking screw.

[0006] Moreover, the bracket is composed of a V-shaped support plate, a bracket bottom plate, and a pillar. The pillar and the V-shaped support plate are successively fixedly installed on the bracket bottom plate.

[0007] Moreover, the V-shaped support plate is provided with a V-shaped groove on it.

[0008] Moreover, the bracket bottom plate is provided with a second locking screw assembly screw hole and a small screw assembly hole on it.

[0009] Moreover, the first locking screw and the second locking screw have the same structure. The lower ends of both are provided with positioning nuts, and the upper parts of both are provided with positioning nuts and locking nuts. And the locking nut of the first locking screw is arranged below the locking pressure plate, and the locking nut of the second locking screw is arranged above the locking pressure plate.

[0010] The advantages and beneficial effects of the present utility model are:

[0011] The locking frame for machining positioning of the rear boom of the clamping arm of the general-purpose vehicle hoist of the present utility model can position and fix the rear boom of the clamping arm of the general-purpose vehicle hoist. The positioning is convenient, accurate, and firm. During machining, there is no need for multiple tool alignments, which can effectively improve the machining speed and efficiency. It is a locking frame for machining positioning of the rear boom of the clamping arm of the general-purpose vehicle hoist with high innovation. Description of the Drawings

[0012] Figure 1 is a structural schematic diagram (axial view) of the present utility model;

[0013] Figure 2 is a structural schematic diagram of the first and second locking screws;

[0014] Figure 3 is a structural schematic diagram (axial view) of the bracket;

[0015] Figure 4 is an assembly position diagram of the present utility model;

[0016] Figure 5 is a structural schematic diagram of the rear boom of the clamping arm of the general-purpose vehicle hoist;

[0017] Figure 6 is forFigure 5 Bottom view;

[0018] Figure 7 It is a schematic diagram of the positioning of the rear boom after the general-purpose vehicle hoist arm is held by the arm.

[0019] Explanation of the reference numerals in the attached drawings:

[0020] 1 - First locking screw, 2 - Second locking screw, 3 - Locking pressure plate, 4 - Bracket, 5 - Small screw, 6 - Positioning nut, 7 - Positioning nut, 8 - Locking nut, 9 - Locking nut, 10 - Positioning nut, 11 - Positioning nut, 12 - Assembly screw hole for the second locking screw, 13 - Bracket bottom plate, 14 - V-shaped support plate, 15 - Support pillar, 16 - Assembly screw hole for the small screw, 17 - Universal pressure plate I, 18 - Lower positioning seat, 19 - Flexible platform, 20 - Lower beam positioning and locking frame, 21 - Sleeve auxiliary support seat, 22 - Upper beam positioning and locking frame, 23 - Upper positioning seat, 24 - Universal pressure plate II, 25 - Process hole, 26 - Assembly connecting plate, 27 - Rear boom lower beam, 28 - Linear bearing sleeve, 29 - Rear boom upper beam, 30 - U-shaped plate I, 31 - U-shaped plate II, 32 - Slide block mounting plate, 33 - Assembly screw hole for the slide block. Detailed implementation manners

[0021] The present utility model will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not restrictive, and the protection scope of the present utility model cannot be limited thereby.

[0022] A locking frame for machining and positioning the rear boom of a general-purpose vehicle hoist arm includes a lower beam positioning and locking frame 20 and an upper beam positioning and locking frame 22. The lower beam positioning and locking frame and the upper beam positioning and locking frame are respectively used for locking and fixing the rear boom lower beam and the rear boom upper beam.

[0023] The lower beam positioning and locking frame and the upper beam positioning and locking frame have the same structure and can be interchanged. They are both composed of a first locking screw 1, a second locking screw 2, a small screw 5, a locking pressure plate 3, and a bracket 4. The first locking screw is arranged on the flexible platform, and the second locking screw, the small screw, and the bracket are jointly arranged on the flexible platform. The locking pressure plate is arranged on the first locking screw and the second locking screw.

[0024] The first locking screw and the second locking screw have the same structure. At their lower ends, positioning nuts 6 and 11 are respectively made, and at their upper parts, positioning nuts 7, 10, locking nuts 8, 9 are respectively arranged. And the locking nut of the first locking screw is arranged below the locking pressure plate, and the locking nut of the second locking screw is arranged above the locking pressure plate.

[0025] The bracket is composed of a V-shaped support plate 14, a bracket bottom plate 13, and a support pillar 15. The support pillar and the V-shaped support plate are successively fixedly installed on the bracket bottom plate.

[0026] V-shaped carrier plate with a V-shaped groove formed thereon.

[0027] Bracket bottom plate with a second locking screw assembly hole 12 and a small screw assembly hole 16 formed thereon.

[0028] The working principle of the present utility model:

[0029] A machining positioning tooling for the rear boom of a general-purpose vehicle hoist arm, including a flexible platform 19, a universal pressure plate one 17, a universal pressure plate two 24, and further including a lower positioning seat 18, a lower beam positioning and locking frame 20, a sleeve auxiliary support seat 21, an upper beam positioning and locking frame 22, and an upper positioning seat 23. The lower positioning seat, the lower beam positioning and locking frame, the sleeve auxiliary support seat, the upper beam positioning and locking frame, and the upper positioning seat are sequentially arranged on the flexible platform, and the universal pressure plate one and the universal pressure plate two are respectively pressed on the lower positioning seat and the upper positioning seat.

[0030] The lower positioning seat is composed of a lower positioning seat bottom plate, a vertical plate, a reinforcing rib, and a positioning pin. The lower positioning seat bottom plate and the vertical plate are vertically and fixedly intersected, the reinforcing rib is connected between the lower positioning seat bottom plate and the vertical plate, and the positioning pin is arranged on the vertical plate. The vertical plate has a lower beam positioning hole formed thereon. The lower beam positioning hole cooperates with the process hole of the lower boom of the hoist arm to position and fix the lower boom of the hoist arm. The bottom surface of the lower positioning seat bottom plate has an assembly tenon. The assembly tenon is used to assemble the upper positioning seat on the flexible platform.

[0031] The upper positioning seat is composed of an upper positioning seat bottom plate, a top plate, a column, and a positioning pin; the upper positioning seat bottom plate is at the bottom, the top plate is at the top, and the column is fixedly installed in the middle, and the positioning pin is arranged on the top plate.

[0032] The bottom surface of the upper positioning seat bottom plate has an assembly tenon. The assembly tenon is used to assemble the upper positioning seat on the flexible platform.

[0033] The top plate has a slider mounting plate positioning hole formed thereon and there are four slider mounting plate positioning holes. The four slider mounting plate positioning holes cooperate with the four screw holes on the slider mounting plate to position the upper boom of the hoist arm and the U-shaped plate.

[0034] There are two sleeve auxiliary support seats, both of which are stainless steel advertising nails. The sleeve auxiliary support seats are provided to cooperate with the bracket to support the linear bearing sleeve from the bottom plate, making it more stable during machining.

[0035] Assembly and positioning steps for the locking frame used in the machining positioning of the rear boom of a general-purpose vehicle hoist arm:

[0036] 1. Assemble the lower positioning seat and the upper positioning seat: Assemble the lower positioning seat and the upper positioning seat onto the flexible platform, and the interval is adapted to the length of the workpiece.

[0037] 2. Assemble the lower beam positioning and locking frame and the upper beam positioning and locking frame: Assemble the lower beam positioning and locking frame and the upper beam positioning and locking frame to the appropriate positions on the flexible platform and keep the locking pressure plates in a relaxed state. During assembly, respectively, fit the first locking screw, the second locking screw, and the small screw of the lower beam positioning and locking frame and the upper beam positioning and locking frame onto the flexible platform. Then, fit the bracket onto the second locking screw and the small screw through the assembly holes of the second locking screw and the assembly holes of the small screw. Fix the first locking screw to the flexible platform with the positioning nut on the first locking screw; fix the second locking screw and the bracket to the flexible platform simultaneously with the positioning nut on the second locking screw and the positioning nut on the small screw.

[0038] 3. Check the dimensions with the tool spindle of the machine tool or with a coordinate measuring machine, including the relative positions of the lower positioning seat, the upper positioning seat, the lower beam positioning and locking frame, and the upper beam positioning and locking frame with respect to the tool spindle of the machine tool, so that the lower positioning seat and the upper positioning seat are in positions suitable for the rear boom of the GM hoist arm. At the same time, preliminarily adjust the positions of the lower beam positioning and locking frame and the upper beam positioning and locking frame.

[0039] 4. Lock the lower positioning seat and the upper positioning seat: Use the universal pressure plate 1 and the universal pressure plate 2 to lock and fix the lower positioning seat and the upper positioning seat respectively to prevent displacement.

[0040] 5. Place the rear boom of the GM hoist arm: Place the rear boom of the GM hoist arm onto the lower positioning seat, the upper positioning seat, and the brackets of the lower beam positioning and locking frame and the upper beam positioning and locking frame. First, align the slider assembly screw holes on the slider mounting plate with the slider mounting plate positioning holes on the upper positioning seat and fix the position with four positioning pins. Then, insert the positioning pins on the lower positioning seat into the lower beam positioning holes of the lower positioning seat and the process holes on the lower boom of the hoist arm to fix the lower end of the rear boom of the GM hoist arm.

[0041] 6. Precisely adjust the positions of the lower beam positioning and locking frame and the upper beam positioning and locking frame and lock and fix the rear boom of the GM hoist arm: Readjust the positions of the lower beam positioning and locking frame and the upper beam positioning and locking frame again so that the workpiece can smoothly fit into the V-shaped groove of the V-shaped pallet, and lock the locking pressure plates on the lower beam positioning and locking frame and the upper beam positioning and locking frame with bolts to firmly fix the rear boom of the GM hoist arm. When fixing the lower boom and the upper boom of the hoist arm with the locking pressure plates, first tighten the locking nut on the second locking screw downward to make the locking pressure plate tightly press on the lower boom and the upper boom of the hoist arm, and then tighten the locking nut on the first locking screw upward to make the locking pressure plate more tightly press on the lower boom and the upper boom of the hoist arm.

[0042] 7. Support the linear bearing sleeve: Set the sleeve auxiliary support base directly below the linear bearing sleeve and adjust the height so that the sleeve auxiliary support base tightly presses against the linear bearing sleeve.

[0043] 8. Machining the rear boom of the general-purpose truck crane after the arm is held: After the above assembly and positioning are completed, the slider assembly screw holes on the slider mounting plate are aligned with the slider mounting plate positioning holes on the upper positioning seat and fixed with four positioning pins to ensure the longitudinal positioning of the workpiece. The positioning pins on the lower positioning seat are inserted into the lower beam positioning holes of the lower positioning seat and the process holes on the lower boom of the boom, and the lower beam positioning locking frame, the upper beam positioning locking frame, the locking pressure plates of the lower beam positioning locking frame and the upper beam positioning locking frame, and the V-shaped support plate lock the workpiece to ensure the positioning in the horizontal and vertical directions. At this time, the rear boom of the general-purpose truck crane after the arm is held can be machined; after the previous workpiece is completed, the workpiece is removed, a new workpiece is replaced, and continuous operation can be carried out without repositioning the tool again.

[0044] Although embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art can understand that: various substitutions, changes, and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the content disclosed in the embodiments and drawings.

Claims

1. A locking frame for positioning the rear arm of a universal automobile sling, characterized in that: The invention comprises a lower beam positioning locking frame (20) and an upper beam positioning locking frame (22). The lower beam positioning locking frame (20) and the upper beam positioning locking frame (22) are respectively used for locking and fixing the lower beam (27) and the upper beam of the rear suspension arm. The lower beam positioning locking frame (20) and the upper beam positioning locking frame (22) have the same structure and can be interchanged. They are both composed of a first locking screw (1), a second locking screw (2), a small screw (5), a locking pressure plate (3) and a bracket (4). The first locking screw (1) is arranged on a flexible platform (19), the second locking screw (2), the small screw (5) and the bracket (4) are jointly arranged on the flexible platform (19), and the locking pressure plate (3) is arranged on the first locking screw (1) and the second locking screw (2).

2. The locking frame for machining and positioning the rear boom of a universal automobile sling according to claim 1 is characterized by: The bracket (4) is composed of a V-shaped bracket (14), a bracket bottom plate (13), and a support column (15), and the support column (15) and the V-shaped bracket (14) are fixedly mounted on the bracket bottom plate (13) in sequence.

3. The locking frame for machining and positioning the rear boom of a universal automobile sling according to claim 2 is characterized by: The V-shaped support plate (14) is provided with a V-shaped groove.

4. The locking frame for machining and positioning the rear boom of a universal automobile sling according to claim 2, characterized in that: The bracket bottom plate (13) is provided with a second locking screw (2) assembly screw hole and a small screw (5) assembly hole.

5. The locking frame for machining and positioning the rear boom of a universal automobile sling according to claim 1, characterized in that: The first locking screw (1) and the second locking screw (2) have the same structure, and are both provided with a positioning nut (6) at their lower ends, and are both provided with a positioning nut and a locking nut at their upper parts. The first locking screw locking nut (8) is arranged below the locking pressure plate (3), and the second locking screw locking nut (9) is arranged above the locking pressure plate (3).

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