Machining clamp for automobile rear auxiliary frame

Abstract

The utility model provides a machining clamp for an automobile rear auxiliary frame, which belongs to the technical field of automobile machining and comprises a working table, a first support frame, a second support frame, a third support frame and a fourth support frame. The recycling structure comprises a flow dividing pipe installed on one side of the bottom end of the workbench, a connecting pipe fixed to one side of the air inducing pipe and a storage assembly arranged at the bottom end of the connecting pipe. According to the scrap collecting device, airflow in a factory compressed air pipeline is guided into the flow dividing pipe through the connecting nozzle, the airflow is sprayed out through the air inducing pipe and drives air in the connecting pipe to rapidly flow downwards, scraps in a machining hole position are sucked in through the supporting plate, and therefore the scrap collecting function of the scrap collecting device is achieved; the time for operators to frequently clean the scraps in the machining process is shortened, so that the production efficiency is improved, meanwhile, the scraps are prevented from being accumulated in the machined holes, and the operation stability and precision of the cutter are kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile processing, specifically, a machining clamp for automobile rear subframe. BACKGROUND

[0002] The machining clamp for automobile rear subframe is a key process equipment in the machining of automobile rear subframe, and its main function is to realize positioning and clamping of the workpiece being machined, to ensure that each process can be carried out smoothly, and to have a significant impact on the performance of the machine tool, the improvement of productivity, the control of production cost and the machining quality of the workpiece.

[0003] After searching, the patent with the Chinese patent application number 202122374603.6 discloses a machining clamp for automobile rear subframe, which comprises a bottom plate, a mounting plate, a supporting plate, the mounting plate is fixedly connected with the bottom plate and combined to be perpendicular, the supporting plate is located on one side of the mounting plate and is fixedly welded with the mounting plate and the bottom plate, the front side of the lower end of the mounting plate is provided with a first positioning assembly and a lifting plate, the rear side of the lower end of the mounting plate is provided with a second positioning assembly, a quick clamp fixedly connected with the mounting plate is arranged between the first positioning assembly and the second positioning assembly, a plurality of first oil cylinders are arranged on the front side and the rear side of the upper end of the mounting plate, a rod assembly corresponding to the first oil cylinder is arranged on one side of the first oil cylinder, and a plurality of position devices are arranged on the mounting plate. The utility model has the advantages of reasonable design and accurate positioning, precise positioning is realized through the first positioning assembly and the second positioning assembly, clamping is firm through the quick clamp and the plurality of oil cylinders, and protection is provided for subsequent machining.

[0004] The above-mentioned patent still has the following defects: it is inconvenient to clean the debris, because a large amount of debris is easily generated around the machining hole during the milling and boring processes of the frame workpiece, additional operation time is needed to clean the debris, the production cycle is increased, the production efficiency is reduced, and the tool is easily overheated, accelerating the wear of the tool.

[0005] Therefore, a machining clamp for automobile rear subframe is needed to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at: in view of the defect that it is inconvenient to clean the debris, because a large amount of debris is easily generated around the machining hole during the milling and boring processes of the frame workpiece, additional operation time is needed to clean the debris, the production cycle is increased, the production efficiency is reduced, and the tool is easily overheated, accelerating the wear of the tool.

[0007] In order to realize the above-mentioned purpose of the invention, the utility model provides the following technical scheme:

[0008] A machining fixture for a rear subframe of an automobile includes a worktable and further includes:

[0009] The first support frame is detachably installed on the top of the workbench, and the top of the first support frame is internally threaded with a first rotating rod, and a positioning plate is rotatably connected to one side of the first rotating rod.

[0010] The second support frame is detachably installed on the top of the workbench, and a pneumatic telescopic rod is rotatably connected to one side of the top of the second support frame, and a flipping frame is rotatably connected to the top of the second support frame.

[0011] The third rotating rod is threadedly connected to the inside of the top of the flipping frame, and the bottom end of the third rotating rod is rotatably connected to a pressure plate;

[0012] The chassis workpiece is positioned at the top of the first support frame and the second support frame;

[0013] Mounting base, fixed to both sides of the bottom end of the workbench;

[0014] A recycling structure is provided at the bottom of the workbench. The recycling structure includes a diversion pipe installed on one side of the bottom of the workbench, an exhaust pipe fixed on one side of the diversion pipe, a connecting pipe fixed on one side of the exhaust pipe, and a storage component provided at the bottom of the connecting pipe.

[0015] The support structure, located at the top of the connecting tube, is used to support the bottom of the machined holes on the chassis workpiece.

[0016] As a preferred technical solution of this application, the storage component includes a connecting pipe threaded to the bottom end of the mounting sleeve, a wire cage fixed to the bottom end of the connecting pipe, a connecting nozzle installed on one side of the diversion pipe, and a support plate set at the top of the support structure.

[0017] As a preferred technical solution of this application, the diversion pipe is connected to the connecting pipe through the air duct, and the support plate has a groove with a funnel-shaped inclined structure inside.

[0018] As a preferred technical solution of this application, the support structure includes a positioning seat detachably installed on the top of the workbench, a guide sleeve fixed on one side of the top of the positioning seat, a guide rod slidably connected inside the guide sleeve and connected to the support plate, a support plate fixed on the other side of the top of the positioning seat, a second rotating rod rotatably connected inside the support plate, a transmission bevel gear fixed on one side of the second rotating rod, a threaded sleeve rotatably connected to the top of the positioning seat, a driven bevel gear fixed outside the threaded sleeve and meshing with the transmission bevel gear, and a threaded tube fixed at the bottom of the support plate.

[0019] As a preferred technical solution of this application, the outer wall of the spiral tube is provided with an external thread, and the inside of the spiral sleeve is provided with an internal thread that cooperates with the external thread.

[0020] As the preferred technical scheme of the present application, the screw pipe is communicated with the connecting pipe through the positioning seat, and the second rotating rod is connected with the transmission bevel gear through the supporting plate.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] In the scheme of the present application:

[0023] The air flow in the factory compressed air pipeline is introduced into the inside of the shunt pipe through the connecting nozzle, so that the air flow is sprayed out through the air guide pipe and drives the air inside the connecting pipe to flow downward quickly, and the support plate sucks the debris inside the machining hole into it, thereby realizing the waste debris centralized recycling function of the device, reducing the time of the operator to clean the waste debris frequently during the machining process, thereby improving the production efficiency, and avoiding the accumulation of debris inside the machining hole, thereby maintaining the running stability and precision of the cutter;

[0024] By rotating the second rotating rod, the transmission bevel gear drives the screw sleeve to rotate through the driven bevel gear, and since the outer side of the screw pipe is provided with threads, the height of the screw pipe is adjusted to support the workpiece of the vehicle frame by the support plate, thereby realizing the bottom supporting function of the device, preventing the workpiece of the vehicle frame from being deformed or displaced due to its own weight or cutting force during the machining process, thereby ensuring the machining precision of the workpiece of the vehicle frame, and at the same time, the support plate is in contact with the workpiece of the vehicle frame to improve the recycling effect of the debris. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is one of the structural schematic diagrams of the present application;

[0026] Figure 2 It is the second structural schematic diagram of the present application;

[0027] Figure 3 It is a three-dimensional structural schematic diagram of the recycling structure provided by the present application;

[0028] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the recycling structure provided by the present application;

[0029] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the support structure provided by the present application.

[0030] Indicated in the figure: 1, workbench; 2, pneumatic telescopic rod; 3, frame workpiece; 4, turnover frame; 5, first rotary rod; 6, first support frame; 7, second support frame; 8, recycling structure; 801, steel wire cage; 802, connecting pipe; 803, mounting sleeve; 804, air duct; 805, shunt pipe; 806, connecting nozzle; 807, support plate; 9, support structure; 901, guide rod; 902, guide sleeve; 903, screw sleeve; 904, screw pipe; 905, transmission bevel gear; 906, second rotary rod; 907, supporting plate; 908, positioning seat; 909, driven bevel gear; 10, mounting seat; 11, positioning plate; 12, pressing plate; 13, third rotary rod. DETAILED DESCRIPTION

[0031] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments.

[0032] As Figures 1-5 shown, the machining clamp for automobile rear subframe proposed in the embodiment comprises a workbench 1 and further comprises:

[0033] The first support frame 6 is detachably installed at the top end of the workbench 1, and a first rotary rod 5 is threadedly connected to the inside of the top end of the first support frame 6, and a positioning plate 11 is rotatably connected to one side of the first rotary rod 5;

[0034] The second support frame 7 is detachably installed at the top end of the workbench 1, and a pneumatic telescopic rod 2 is rotatably connected to one side of the top end of the second support frame 7, and a turnover frame 4 is rotatably connected to the top end of the second support frame 7;

[0035] The third rotary rod 13 is threadedly connected to the inside of the top end of the turnover frame 4, and a pressing plate 12 is rotatably connected to the bottom end of the third rotary rod 13;

[0036] The frame workpiece 3 is arranged at the top end of the first support frame 6 and the second support frame 7;

[0037] The mounting seat 10 is fixed at the two sides of the bottom end of the workbench 1;

[0038] The recycling structure 8 is arranged at the bottom end of the workbench 1, wherein the recycling structure 8 comprises a shunt pipe 805 arranged at one side of the bottom end of the workbench 1, an air duct 804 fixed at one side of the shunt pipe 805, a connecting pipe 802 fixed at one side of the air duct 804, and a storage assembly arranged at the bottom end of the connecting pipe 802;

[0039] The support structure 9 is arranged at the top end of the connecting pipe 802 and is used for supporting the bottom of the hole of the frame workpiece 3.

[0040] As Figure 3 and Figure 4 As shown in the preferred embodiment, on the basis of the above-mentioned mode, further, the storage assembly comprises a connecting pipe 802 screwed at the bottom end of the mounting sleeve 803, a steel wire cage 801 fixed at the bottom end of the connecting pipe 802, a connecting nozzle 806 mounted on one side of the shunt pipe 805, and a support plate 807 provided at the top end of the support structure 9, the shunt pipe 805 is connected with the connecting pipe 802 through the air guide pipe 804, the inside of the support plate 807 is provided with a groove with a funnel-shaped inclined surface structure, the support plate 807 is tightly attached to the machining hole position of the frame workpiece 3 by adjusting the support structure 9, and the hole position inside the support plate 807 is aligned with the machining hole position of the frame workpiece 3, the connecting nozzle 806 is communicated with the factory compressed air pipe, so that the airflow enters the inside of the shunt pipe 805, and the airflow passes through the shunt pipe 805 into the inside of the air guide pipe 804, then the airflow passes through the air guide pipe 804 and is sprayed downward in the inside of the connecting pipe 802, at the same time, the downward airflow drives the air in the inside of the connecting pipe 802 to flow downward quickly, and the support plate 807 sucks the debris inside the machining hole position, so that the debris is concentrated and falls into the inside of the steel wire cage 801, the steel wire cage 801 separates the debris from the air, the mounting sleeve 803 is rotated to separate the connecting pipe 802 from the mounting sleeve 803, so that the steel wire cage 801 can be disassembled to clean and recycle the debris inside.

[0041] As Figure 5As shown, as a preferred embodiment, on the basis of the above manner, further, the support structure 9 comprises a positioning seat 908 detachably mounted at the top end of the workbench 1, a guide sleeve 902 fixed at one side of the top end of the positioning seat 908, a guide rod 901 slidingly connected in the guide sleeve 902 and connected with the support plate 807, a supporting plate 907 fixed at the other side of the top end of the positioning seat 908, a second rotating rod 906 rotatably connected in the supporting plate 907, a transmission bevel gear 905 fixed at one side of the second rotating rod 906, a screw sleeve 903 rotatably connected at the top end of the positioning seat 908, a driven bevel gear 909 fixed at the outer side of the screw sleeve 903 and meshing with the transmission bevel gear 905, and a screw pipe 904 fixed at the bottom end of the support plate 807, the outer side wall of the screw pipe 904 is provided with external threads, and the inner part of the screw sleeve 903 is provided with internal threads matched with the external threads, the screw pipe 904 is communicated with the connecting pipe 802 through the positioning seat 908, the second rotating rod 906 passes through the supporting plate 907 and is connected with the transmission bevel gear 905, rotating the second rotating rod 906 drives the transmission bevel gear 905 to rotate the driven bevel gear 909 through the teeth, and drives the screw sleeve 903 to rotate outside the positioning seat 908, because the outer side of the screw pipe 904 is provided with threads, the screw pipe 904 is lifted and adjusted in height by the threads during the rotation of the screw sleeve 903, so that the support plate 807 contacts the bottom of the frame workpiece 3 to support the frame workpiece 3, and the guide rod 901 can slide in the guide sleeve 902 to guide the movement of the support plate 807.

[0042] Specifically, when the machining clamp for the automobile rear subframe is used: a plurality of first support frames 6 and first rotating rods 5 are bolted on the surface of the workbench 1 according to the shape of the frame workpiece 3, then the device is adjusted, the frame workpiece 3 is placed on the top of the first support frame 6 and the first rotating rod 5, the first rotating rod 5 is rotated to drive the positioning plate 11 to move, so that the positioning plate 11 contacts the frame workpiece 3 to limit the position of the frame workpiece 3, the pneumatic telescopic rod 2 is started to extend to drive the turnover frame 4 to overturn, so that the pressing plate 12 moves above the frame workpiece 3, the third rotating rod 13 is rotated to press the frame workpiece 3 by the pressing plate 12, and the position of the frame workpiece 3 is locked and fixed, after the adjustment is completed, the pneumatic telescopic rod 2 is retracted to separate the pressing plate 12 from the frame workpiece 3, so that the frame workpiece 3 can be taken out for continuous clamping of a plurality of frame workpieces 3, the support structure 9 is installed at the machining hole position to collect the falling debris, and the support structure 9 supports the machining position to prevent the structure of the frame workpiece 3 from being deformed by pressure during machining.

[0043] By adjusting the support structure 9, the support plate 807 is tightly attached to the machining hole position of the frame workpiece 3, and the hole position inside the support plate 807 is aligned with the machining hole position of the frame workpiece 3. The connecting nozzle 806 is communicated with the factory compressed air pipeline, so that the air flow enters the inside of the shunt pipe 805, and the air flow enters the inside of the air guide pipe 804 through the shunt pipe 805. Then the air flow is sprayed downward in the inside of the connecting pipe 802 through the air guide pipe 804. At the same time, the downward air flow drives the air in the inside of the connecting pipe 802 to flow downward quickly, and the support plate 807 sucks the debris inside the machining hole position, so that the debris is concentrated and falls into the inside of the steel wire mesh 801. The steel wire mesh 801 separates the debris from the air. The connecting pipe 802 is separated from the mounting sleeve 803 by rotating the mounting sleeve 803, so that the steel wire mesh 801 can be disassembled to clean and recycle the debris inside.

[0044] When the adjusting device is adjusted, the second rotating rod 906 is rotated, so that the driving bevel gear 905 drives the driven bevel gear 909 to rotate through the teeth, and the driven bevel gear 909 drives the screw sleeve 903 to rotate outside the positioning seat 908. Because the outside of the screw pipe 904 is provided with threads, the screw pipe 904 is lifted through the threads during the rotation of the screw sleeve 903, so that the height of the screw pipe 904 is adjusted, the support plate 807 is in contact with the bottom of the frame workpiece 3, the frame workpiece 3 is supported, and the guide rod 901 can slide in the inside of the guide sleeve 902 to guide the movement of the support plate 807.

[0045] The above embodiments are only used to illustrate the technical solutions described in the utility model and are not limited to the technical solutions described in the utility model. Although the utility model has been described in detail with reference to the above embodiments, the utility model is not limited to the above specific embodiments. Therefore, any modification or equivalent replacement of the utility model is allowed. All technical solutions and improvements that do not deviate from the spirit and scope of the invention are covered in the scope of the claims of the utility model.

Claims

1. A machining jig for a rear subframe of an automobile, comprising a table (1), characterized in that, Also include: The first support frame (6) is detachably installed at the top end of the workbench (1), and the inside of the top end of the first support frame (6) is threadedly connected with a first rotating rod (5), one side of the first rotating rod (5) is rotatably connected with a positioning plate (11); The second support frame (7) is detachably installed at the top end of the workbench (1), and one side of the top end of the second support frame (7) is rotatably connected with a pneumatic telescopic rod (2), and the top end of the second support frame (7) is rotatably connected with a turnover frame (4); The third rotating rod (13) is threadedly connected in the inside of the top end of the turnover frame (4), and the bottom end of the third rotating rod (13) is rotatably connected with a pressing plate (12); The frame workpiece (3) is arranged at the top end of the first support frame (6) and the second support frame (7); The mounting seat (10) is fixed on both sides of the bottom end of the workbench (1); The recycling structure (8) is arranged at the bottom end of the workbench (1), wherein the recycling structure (8) comprises a shunt pipe (805) arranged on one side of the bottom end of the workbench (1), an air guide pipe (804) fixed on one side of the shunt pipe (805), a connecting pipe (802) fixed on one side of the air guide pipe (804), and a storage assembly arranged at the bottom end of the connecting pipe (802); The support structure (9) is arranged at the top end of the connecting pipe (802) and is used for supporting the bottom of the hole of the frame workpiece (3).

2. A machining jig for a rear subframe of an automobile according to claim 1, characterized by The storage assembly comprises a connecting pipe (802) threadedly connected at the bottom end of a mounting sleeve (803), a steel wire cage (801) fixed at the bottom end of the connecting pipe (802), a connecting nozzle (806) arranged on one side of the shunt pipe (805), and a support plate (807) arranged at the top end of the support structure (9).

3. A machining jig for a rear subframe of an automobile according to claim 2, characterized by The shunt pipe (805) is connected with the connecting pipe (802) through the air guide pipe (804), and the inside of the support plate (807) is provided with a groove in the shape of a funnel-shaped inclined surface structure.

4. The machining fixture of a rear subframe of an automobile according to claim 1, wherein The support structure (9) comprises a positioning seat (908) detachably installed at the top end of the workbench (1), a guide sleeve (902) fixed on one side of the top end of the positioning seat (908), a guide rod (901) slidably connected in the inside of the guide sleeve (902) and connected with the support plate (807), a supporting plate (907) fixed on the other side of the top end of the positioning seat (908), a second rotating rod (906) rotatably connected in the inside of the supporting plate (907), a transmission bevel gear (905) fixed on one side of the second rotating rod (906), a screw sleeve (903) rotatably connected at the top end of the positioning seat (908), a driven bevel gear (909) fixed on the outside of the screw sleeve (903) and engaged with the transmission bevel gear (905), and a screw pipe (904) fixed at the bottom end of the support plate (807).

5. A machining jig for a rear subframe of an automobile according to claim 4, wherein The outside wall of the screw pipe (904) is provided with external threads, and the inside of the screw sleeve (903) is provided with internal threads matched with the external threads.

6. A machining jig for a rear subframe of an automobile according to claim 4, characterized by The screw pipe (904) is in communication with the connecting pipe (802) through the positioning seat (908), and the second rotating rod (906) passes through the supporting plate (907) and is connected with the transmission bevel gear (905).

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