Machining and positioning tool for 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 universal automobile sling holding arm rear suspension arm machining positioning tool which comprises a flexible platform, a universal pressing plate I and a universal pressing plate II, and is characterized by further comprising a lower positioning seat, a lower beam positioning locking frame, a sleeve auxiliary supporting seat, an upper beam positioning locking frame and an upper positioning seat, the lower positioning seat, the lower beam positioning and locking frame, the sleeve auxiliary supporting seat, the upper beam positioning and locking frame and the upper positioning seat are sequentially arranged on the flexible platform, and the first universal pressing plate and the second universal pressing plate are pressed on the lower positioning seat and the upper positioning seat respectively. The machining positioning tool is scientific and reasonable in structural design, can position and fix the universal automobile lifting appliance holding arm rear lifting 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 is high in innovativeness.

Description

Technical Field

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

[0002] A general automobile sling is a hoisting equipment used for hoisting different models of automobiles on an automobile mixed assembly 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 beam 33, an upper boom beam 35, an assembly connecting plate 32, a linear bearing sleeve 34, a U-shaped plate, and a slider mounting plate 38; the U-shaped plate includes a U-shaped plate one 36 and a U-shaped plate two 37; the lower boom beam and the upper boom beam 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 beam, and a process hole 31 is concentrically made at the lower end of the lower boom beam; 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 beam, the slider mounting plate is arranged between the U-shaped plate one and the U-shaped plate two, and slider assembly screw holes 39 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 alignments during machining, thereby saving tool alignment time and improving machining speed and efficiency. Designing a machining positioning tooling for the rear boom has become an urgent problem to be solved in machining. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a machining positioning tooling for the rear boom of a general automobile sling arm, which can position and fix the rear boom of the general automobile sling arm, is convenient, accurate in positioning, does not require multiple tool alignments 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 machining positioning tooling for the rear boom of a general automobile sling arm, including a flexible platform, a universal pressing plate one, and a universal pressing plate two, is characterized in that: it further includes a lower positioning seat, a lower beam positioning and locking frame, a sleeve auxiliary support seat, an upper beam positioning and locking frame, and an upper positioning seat. 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 pressing plate one and the universal pressing plate two are respectively pressed on the lower positioning seat and the upper positioning seat.

[0006] Moreover, 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 fixedly installed perpendicular to each other. 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.

[0007] Moreover, the vertical plate is provided with a lower beam positioning hole thereon.

[0008] Moreover, the bottom surface of the lower positioning seat bottom plate is provided with an assembly tenon.

[0009] Moreover, 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. The positioning pin is arranged on the top plate.

[0010] Moreover, the bottom surface of the upper positioning seat bottom plate is provided with an assembly tenon.

[0011] Moreover, the top plate is provided with four slider mounting plate positioning holes thereon.

[0012] Moreover, the lower beam positioning and locking frame and the upper beam positioning and locking frame have the same structure, and both are 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.

[0013] 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 fixedly installed on the bracket bottom plate in sequence.

[0014] The advantages and beneficial effects of the present utility model are as follows:

[0015] The present utility model is a machining positioning tooling for the rear boom of a general-purpose vehicle hoist arm. It can position and fix the rear boom of the general-purpose vehicle hoist arm. 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 machining positioning tooling for the rear boom of a general-purpose vehicle hoist arm with high innovation. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram (axial view) of the present utility model;

[0017] Figure 2 is a schematic structural diagram (front view) of the present utility model;

[0018] Figure 3 is Figure 2 the top view of;

[0019] Figure 4 is a schematic structural diagram (axial view) of the lower positioning seat;

[0020] Figure 5 Schematic diagram (axonometric view) of the lower positioning seat structure;

[0021] Figure 6 Schematic diagram (front view) of the lower positioning seat structure;

[0022] Figure 7 is Figure 6 left view of;

[0023] Figure 8 Schematic diagram (axonometric view) of the upper positioning seat structure;

[0024] Figure 9 Schematic diagram (axonometric view) of the upper positioning seat structure;

[0025] Figure 10 Schematic diagram (front view) of the upper positioning seat structure;

[0026] Figure 11 is Figure 10 top view of;

[0027] Figure 12 Schematic diagram (axonometric view) of the lower beam positioning and locking frame structure;

[0028] Figure 13 Schematic diagram (axonometric view) of the bracket structure;

[0029] Figure 14 Schematic diagram of the rear boom structure of the general-purpose vehicle hoist arm;

[0030] Figure 15 is Figure 14 bottom view of;

[0031] Figure 16 Positioning diagram of the rear boom of the general-purpose vehicle hoist arm.

[0032] Explanation of the attached drawing annotations:

[0033] 1 - Universal pressure plate 1, 2 - Lower positioning seat, 3 - Flexible platform, 4 - Lower beam positioning and locking frame, 5 - Sleeve auxiliary support seat, 6 - Upper beam positioning and locking frame, 7 - Upper positioning seat, 8 - Universal pressure plate 2, 9 - Lower positioning seat bottom plate, 10 - Assembly tenon, 11 - Reinforcing rib, 12 - Vertical plate, 13 - Positioning pin, 14 - Lower beam positioning hole, 15 - Top plate, 16 - Positioning pin, 17 - Slide block mounting plate positioning hole, 18 - Assembly tenon, 19 - Column, 20 - Upper positioning seat bottom plate, 21 - First locking screw, 22 - Second locking screw, 23 - Locking pressure plate, 24 - Bracket, 25 - Small screw, 26 - Screw hole, 27 - Bracket bottom plate, 28 - V-shaped support plate, 29 - Support pillar, 30 - Screw hole, 31 - Process hole, 32 - Assembly connecting plate, 33 - Lower boom of the crane, 34 - Linear bearing sleeve, 35 - Upper boom of the crane, 36 - U-shaped plate 1, 37 - U-shaped plate 2, 38 - Slide block mounting plate, 39 - Slide block assembly screw hole. Detailed implementation mode

[0034] The following further details the present utility model 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.

[0035] A machining positioning tooling for the rear boom of a general automotive crane arm, including a flexible platform 3, a universal pressure plate 1, and a universal pressure plate 2. The innovation lies in that it further includes a lower positioning seat 2, a lower beam positioning and locking frame 4, a sleeve auxiliary support seat 5, an upper beam positioning and locking frame 6, and an upper positioning seat 7. 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 1 and the universal pressure plate 2 are respectively pressed on the lower positioning seat and the upper positioning seat.

[0036] The lower positioning seat is composed of a lower positioning seat bottom plate 9, a vertical plate 12, a reinforcing rib 11, and a positioning pin 13. The lower positioning seat bottom plate and the vertical plate are fixedly installed perpendicular to each other, 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.

[0037] On the vertical plate, there is a lower beam positioning hole 14. The lower beam positioning hole cooperates with the process hole of the lower boom of the crane, and the lower boom of the crane can be positioned and fixed.

[0038] On the bottom surface of the lower positioning seat bottom plate, there is an assembly tenon 10. The assembly tenon is used to assemble the upper positioning seat on the flexible platform.

[0039] The upper positioning seat is composed of an upper positioning seat bottom plate 20, a top plate 15, a column 19, and a positioning pin 16; 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.

[0040] On the bottom surface of the upper positioning seat bottom plate, there is an assembly tenon 18. The assembly tenon is used to assemble the upper positioning seat on the flexible platform.

[0041] The top plate is provided with four positioning holes 17 for the slider mounting plate, and the four positioning holes for the slider mounting plate cooperate with the four screw holes on the slider mounting plate to position the upper beam of the lifting arm and the U-shaped plate.

[0042] The lower beam positioning and locking frame and the upper beam positioning and locking frame have the same structure, and both are composed of a first locking screw 21, a second locking screw 22, a small screw 25, a locking pressure plate 23, and a bracket 24. 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. The second locking screw and the small screw can fix the bracket on the flexible platform.

[0043] The bracket is composed of a V-shaped support plate 28, a bracket bottom plate 27, and a support column 29. The support column and the V-shaped support plate are successively fixed on the bracket bottom plate. The bracket bottom plate is provided with screw holes 26 and 30. The bracket cooperates with the locking pressure plate to lock and fix the lower beam and the upper beam of the lifting arm.

[0044] There are two sleeve auxiliary support seats, both of which are stainless steel advertising nails. The sleeve auxiliary support seats are arranged to cooperate with the bracket to support the linear bearing sleeve from the bottom plate, making the machining more stable.

[0045] The working principle of the present utility model:

[0046] Assembly and positioning steps of the machining positioning tooling for the rear lifting arm of the general-purpose vehicle hoist after the hoisting arm is held:

[0047] 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.

[0048] 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 onto the flexible platform at appropriate positions and keep the locking pressure plate in a relaxed state.

[0049] 3. Check the dimensions with the tool spindle of the machine tool or with a three-coordinate measuring device, 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 adapted to the rear lifting arm of the general-purpose vehicle hoist. At the same time, preliminarily adjust the positions of the lower beam positioning and locking frame and the upper beam positioning and locking frame.

[0050] 4. Lock the lower positioning seat and the upper positioning seat: Use the first universal pressure plate and the second universal pressure plate to lock and fix the lower positioning seat and the upper positioning seat respectively to prevent displacement.

[0051] 5. Place the rear boom of the general-purpose automotive hoist arm: Place the rear boom of the general-purpose automotive hoist arm on the brackets of the lower positioning seat, upper positioning seat, lower beam positioning and locking frame, and 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 positioning 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 position and fix the lower end of the rear boom of the general-purpose automotive hoist arm.

[0052] 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 general-purpose automotive hoist arm: Readjust the positions of the lower beam positioning and locking frame and the upper beam positioning and locking frame again to make the workpiece smoothly stuck in 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, thereby firmly fixing the rear boom of the general-purpose automotive hoist arm.

[0053] 7. Support the linear bearing sleeve: Set the sleeve auxiliary support seat directly below the linear bearing sleeve and adjust the height to make the sleeve auxiliary support seat tightly press against the linear bearing sleeve.

[0054] 8. Machine the rear boom of the general-purpose automotive hoist arm: After completing the above assembly and positioning, 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, ensuring 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 hoist arm, and the lower beam positioning and locking frame, upper beam positioning and locking frame, and the locking pressure plates of the lower beam positioning and locking frame and upper beam positioning and locking frame, and the V-shaped pallet lock the workpiece, ensuring the positioning in the horizontal and height directions. At this time, the rear boom of the general-purpose automotive hoist arm can be machined; after the previous workpiece is completed, remove the workpiece, replace it with a new workpiece, and continuous operation can be carried out without repositioning the tool again.

[0055] Although the 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 universal automobile sling arm rear arm machining positioning tool, comprising a flexible platform (3), a universal pressing plate 1 (1), and a universal pressing plate 2 (8), characterized in that: The invention also comprises a lower positioning seat (2), a lower beam positioning locking frame (4), a sleeve auxiliary support seat (5), an upper beam positioning locking frame (6), and an upper positioning seat (7). The lower positioning seat (2), the lower beam positioning locking frame (4), the sleeve auxiliary support seat (5), the upper beam positioning locking frame (6), and the upper positioning seat (7) are sequentially arranged on the flexible platform (3), and a universal pressing plate 1 (1) and a universal pressing plate 2 (8) are pressed on the lower positioning seat (2) and the upper positioning seat (7) respectively.

2. The universal automobile sling arm rear boom machining positioning tool according to claim 1 is characterized by: The lower positioning seat (2) is composed of a lower positioning seat bottom plate (9), a vertical plate (12), a reinforcing rib (11), and a positioning pin (13). The lower positioning seat bottom plate (9) and the vertical plate (12) are vertically intersected and fixed, the reinforcing rib (11) is connected between the lower positioning seat bottom plate (9) and the vertical plate (12), and the positioning pin (13) is arranged on the vertical plate (12).

3. The universal automobile sling arm rear boom machining positioning tool according to claim 2 is characterized by: The vertical plate (12) is provided with a lower beam positioning hole (14).

4. The universal automobile sling arm rear boom machining positioning tool according to claim 2, characterized in that: The bottom surface of the lower positioning seat bottom plate (9) is provided with an assembly tenon (10).

5. The universal automobile sling arm rear boom machining positioning tool according to claim 1, characterized in that: The upper positioning seat (7) is composed of an upper positioning seat bottom plate (20), a top plate (15), a column (19), and a positioning pin (16); the upper positioning seat bottom plate (20) is at the bottom, the top plate (15) is at the top, and the column (19) is fixed in the middle, and the positioning pin (16) is arranged on the top plate (15).

6. The universal automobile sling arm rear boom machining positioning tool according to claim 5, characterized in that: The upper positioning seat bottom plate (20) has an assembly tenon (18) formed on its bottom surface.

7. The universal automobile sling arm rear boom machining positioning tool according to claim 5, characterized in that: The top plate (15) is provided with four slider mounting plate positioning holes (17).

8. The universal automobile sling arm rear boom machining positioning tool according to claim 1, characterized in that: The lower beam positioning locking frame (4) and the upper beam positioning locking frame (6) have the same structure, and are both composed of a first locking screw (21), a second locking screw (22), a small screw (25), a locking pressure plate (23), and a bracket (24); the first locking screw (21) is arranged on the flexible platform (3); the second locking screw (22), the small screw (25), and the bracket (24) are jointly arranged on the flexible platform (3); and the locking pressure plate (23) is arranged on the first locking screw (21) and the second locking screw (22).

9. The universal automobile sling arm rear boom machining positioning tool according to claim 8, characterized in that: The bracket (24) is composed of a V-shaped bracket (28), a bracket bottom plate (27), and a support column (29). The support column (29) and the V-shaped bracket (28) are fixedly mounted on the bracket bottom plate (27) in sequence.

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