CN215281022U - Large-scale gearbox box adds clamping apparatus - Google Patents

Abstract

The utility model discloses a large-scale gearbox box adds clamping apparatus, its characterized in that: the device comprises a support, a tooling frame, a rotary driving mechanism, two right-angle limiting blocks, two positioning pins and a pressing mechanism; the tool frame is rotatably arranged on the support and can be driven to rotate by the rotary driving mechanism; the tool rack is provided with a supporting surface which is used for being in surface contact fit with the bottom surface of the gearbox body; the two right-angle limiting blocks are fixed on the supporting surface and are respectively used for limiting two bottom angles which are distributed diagonally on the gearbox body; the two positioning pins are fixed on the supporting surface and are respectively used for positioning two bottom connecting holes which are distributed diagonally on the gearbox body; the two pressing mechanisms are arranged on the tool rack and are respectively used for pressing two connecting parts of the gearbox body. The utility model can be used for positioning and clamping the large gearbox body, and can rotate and then process tangentially; meanwhile, the cutter does not interfere in each direction of processing, the auxiliary time is reduced, and the production efficiency and the processing precision are improved.

Description

Large-scale gearbox box adds clamping apparatus

Technical Field

The utility model relates to a large-scale gearbox box adds clamping apparatus.

Background

Referring to fig. 1-3, there is a large transmission housing for my prior art. The bottom side of the large gearbox body (N) needs to be provided with a bottom surface (N-1) and a bottom connecting hole (N-3) of two connecting parts (N-2); the front side and the rear side of the sealing gasket are required to be processed with a side surface (N-4), a side semicircular hole (N-5) and a side connecting hole (N-6), and the top side of the sealing gasket is required to be processed with a combined surface (N-7), a combined connecting hole (N-8) and a sealing gasket groove (N-9). The large gearbox casing (N) has dimensions 1135 × 578 × 356mm and a weight 389 kg. The large gearbox housing (N) is therefore large and bulky. And the original clamp can only process a single side surface when clamping, 4 sets of different clamps are needed to realize the processing of the four sides, the cost is high, multiple times of clamping (complex assembly and disassembly due to large and heavy appearance, time and labor waste and unsafety) are realized, the machine table is replaced for multiple times, the processing difficulty is increased, the precision is difficult to control, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned defect problem or a plurality of defect problems that exist among the prior art, the utility model provides a large-scale gearbox box adds clamping apparatus.

In order to achieve the above object, the utility model provides a large-scale gearbox box adds clamping apparatus, its characterized in that: the device comprises a support, a tool rack, a rotary driving mechanism, two right-angle limiting blocks, two positioning pins and a pressing mechanism; the tool frame is rotatably arranged on the support and can be driven to rotate by the rotary driving mechanism; the tool rack is provided with a supporting surface which is used for being in surface contact fit with the bottom surface of the gearbox body; the two right-angle limiting blocks are fixed on the supporting surface and are respectively used for limiting two bottom angles which are distributed diagonally on the gearbox body; the two positioning pins are fixed on the supporting surface and are respectively used for positioning two bottom connecting holes which are distributed diagonally on the gearbox body; the two pressing mechanisms are arranged on the tool rack and are respectively used for pressing two connecting parts of the gearbox body.

Preferably, the support comprises a bottom plate and two support beams; the lower ends of the two supporting beams are fixedly connected with the bottom plate and are distributed at intervals relatively; the tool rack comprises a support plate and two connecting seats, wherein the support plate is provided with a support surface; the two connecting seats are respectively fixed at two ends of the supporting plate and are respectively connected with the two supporting beams in a rotating way.

Preferably, the rotary driving mechanism employs a motor or a rotary cylinder.

Preferably, the hold-down mechanism comprises at least two corner cylinders.

The gearbox is characterized by further comprising two safety mechanisms, wherein the two safety mechanisms are respectively used for pressing two connecting parts of the gearbox body for limiting; the safety mechanism comprises a safety stop block and a stop rod, the safety stop block is used for lateral limiting of the connecting part of the gearbox body, and the stop rod is used for longitudinal limiting of the connecting part of the gearbox body.

Preferably, the safety block is fixed on the supporting surface, and the stop rod is fixed with the safety block in a threaded fit mode.

Furthermore, the safety mechanism is provided with a plurality of stop rods, and the stop rods are fixed on the safety block and distributed side by side.

The utility model discloses beneficial effect:

firstly, the utility model can be used for positioning and clamping when a large gearbox body is machined, and after one-time clamping, the three-dimensional machining can be realized by rotating and then tangentially machining, so that the auxiliary time can be reduced, and the production efficiency and the machining precision can be improved; meanwhile, multiple clamping and multiple machine table replacement can be avoided, the machining difficulty can be greatly reduced, meanwhile, the precision is guaranteed to be uniform, the relative position precision between each machined surface and the hole position and the like is improved, meanwhile, the cost investment of the clamp, the machine tool, the station labor and the like is reduced, and the production efficiency is improved;

secondly, the utility model can solve the unsafe problem that when the tool frame and the gearbox body clamped on the tool frame turn over to the front side or the rear side, the corner cylinder of the hold-down mechanism breaks down and loses pressure, the gearbox body can turn over and fall down; can ensure absolute safety all the time in the turning and processing processes;

thirdly, the two pressing mechanisms are adopted by the utility model to respectively press the two connecting parts of the gearbox body; because the two connecting parts of the pressing gearbox body are simultaneously pressed front and back, the stress is more stable, and the looseness can be prevented.

Fourth, the utility model discloses because two base angles that these two right angle stoppers go up diagonal distribution on with this gearbox box are spacing, two base connecting hole location of diagonal distribution on these two locating pins difference gearbox box, displacement about both can having restricted this gearbox box like this, also restrict this gearbox box displacement simultaneously, and simple structure, it is with low costs, also very convenient to place after the diagonal alignment and pack into when the clamping, reduced the clamping degree of difficulty, improve work efficiency.

Drawings

FIGS. 1-3 are schematic structural views of a large transmission housing.

Fig. 4-5 are schematic structural views of the large gearbox casing machining clamp of the present invention.

Fig. 6-7 are the working state diagrams of the large gearbox body processing clamp of the utility model during clamping.

Fig. 8 is an enlarged view at a in fig. 7.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

example (b): referring to fig. 4-8, a large gearbox case machining fixture comprises a support 1, a tooling frame 2, a rotary driving mechanism 3, two right-angle limiting blocks 4, two positioning pins 5, a pressing mechanism 6 and two safety mechanisms 7.

The tool rack 2 is rotatably arranged on the support 1 and can be driven to rotate by a rotation driving mechanism 3.

In the embodiment, the support 1 comprises a bottom plate 1-1 and two support beams 1-2; the lower ends of the two supporting beams 1-2 are fixedly connected with the bottom plate 1-1 and are distributed at intervals from left to right; the tool rack 2 comprises a support plate 2-1 and two connecting seats 2-2, wherein the support plate 2-1 is provided with a support surface 2-11; the two connecting seats 2-2 are respectively fixed at the left end and the right end of the supporting plate 2-1, and the two connecting seats 2-2 are respectively connected with the two supporting beams 1-2 in a rotating way.

In the present embodiment, the rotary drive mechanism 3 employs a motor or a rotary cylinder.

In this embodiment, the rotary driving mechanism 3 is fixedly connected to the connecting seat 2-2 of the tool rack 2 through a transmission shaft 3-1, and the transmission shaft 3-1 is rotatably connected to the supporting beam 1-2.

In the embodiment, the support beam 1-2 is provided with a rotating hole 1-21, and the transmission shaft 3-1 is connected with the rotating hole 1-21 through a bearing 3-2.

Wherein, the tool frame 2 is provided with a bearing surface 2-11, and the bearing surface 2-11 is used for being in surface contact fit with the bottom surface N-1 of the gearbox housing N.

The two right-angle limiting blocks 4 are fixed on the supporting surfaces 2-11 and are respectively used for limiting two bottom angles N-10 which are diagonally distributed on the gearbox body N.

The two right-angle limiting blocks 4 are L-shaped structures and are distributed diagonally, so that two bottom corners N-10 distributed diagonally on the gearbox body N can be limited, the left and right displacement of the gearbox body N can be limited, the displacement of the gearbox body N can be limited at the same time, the structure is simple, the cost is low, the gearbox body N can be conveniently placed and loaded after the diagonal alignment during clamping, the clamping difficulty is reduced, and the working efficiency is improved.

In the present embodiment, the two positioning pins 5 are fixed on the supporting surfaces 2 to 11 and are respectively used for positioning two bottom connecting holes N-3 which are distributed diagonally on the gearbox casing N.

In this embodiment, the two positioning pins are disposed close to and in one-to-one correspondence with the two right-angle stoppers 4.

The two pressing mechanisms 6 are arranged on the tool rack 2 and are respectively used for pressing two connecting parts N-2 of the gearbox body N. Because the two connecting parts N-2 of the compaction gearbox box body N are compacted front and back simultaneously, the stress is more stable, and the looseness can be prevented.

In the present embodiment, the pressing mechanism 6 includes two corner cylinders. When the corner cylinder works, after the gearbox box body N is well positioned, the corner cylinder pressure arm can be started to rotate to the position above the connecting part N-2 of the gearbox box body N, and then the corner cylinder vertically moves downwards to linearly move to tightly press the connecting part N-2 of the gearbox box body N; when the gearbox casing N is loosened, the pressure arm of the corner cylinder automatically returns to the original position according to the pressed route to be spaced away from the gearbox casing N, and an operator can smoothly and conveniently detach the gearbox casing N. The corner cylinder of the hold-down mechanism 6 can be automatically pressed or loosened, so that the time for clamping and releasing the workpiece is reduced, the automatic clamping and releasing of the workpiece are realized by the aid of a hydraulic (pneumatic) clamp, and an operator only needs to load and unload the workpiece. The time for automatically clamping and releasing the workpiece is reduced by 90 to 95 percent relative to a manual clamp according to actual measurement and calculation; secondly, the positioning precision is high, and the repeatability of the clamping force ensures the accuracy of the positioning and the clamping; in addition, the space is fully utilized as much as possible due to the rotation function, the space utilization rate of the clamp is improved, and the clamping, placing and unloading of workpieces are facilitated.

The two safety mechanisms 7 are respectively used for pressing two connecting parts N-2 of the gearbox body N for limiting; the safety mechanism 7 comprises a safety stop 7-1 and a stop lever 7-2, the safety stop 7-1 is used for laterally limiting the connecting part N-2 of the gearbox body N, and the stop lever 7-2 is used for longitudinally limiting the connecting part N-2 of the gearbox body N. The safety stop blocks 7-1 of the two safety mechanisms 7 are respectively used for front and back limiting of two connecting parts N-2 of the gearbox box body N, and the stop rods 7-2 of the safety mechanisms 7 are respectively used for stopping limiting above the two connecting parts N-2 of the gearbox box body N, so that the unsafe problem that the gearbox box body N falls down due to the fact that the gearbox box body N falls down after a corner cylinder of the pressing mechanism 6 fails and loses pressure when the tool frame 2 and the gearbox box body N clamped on the tool frame are overturned to the front side or the rear side with the side N-4 facing upwards can be solved; can ensure that absolute safety is kept in the turning and processing processes.

Preferably, the safety block 7-1 is fixed on the supporting surface 2-11, and the stop rod 7-2 is fixed with the safety block 7-1 in a threaded fit manner. The effective length of the gear lever 7-2 can be adjusted when the gear is shifted up, and meanwhile, the gear lever can be rotated to be far away from and loosened, so that a space is reserved before clamping and a space is reserved after processing to unload the workpiece.

Specifically, the safety block 7-1 is provided with a threaded hole 7-11, and the stop rod 7-2 is provided with an external thread and matched with the threaded hole.

Specifically, the shift lever 7-2 may be a bolt.

Further, the safety mechanism 7 is provided with a plurality of shift rods 7-2, and the shift rods 7-2 are fixed on the safety block 7-1 and distributed side by side, so that the safety factor is improved due to the simultaneous shift-up protection of the shift rods 7-2.

Specifically, three threaded holes 7-11 are formed in the safety block 7-1 of each safety mechanism 7; and three levers 7-2 per one safety gear 7.

The present embodiment can be processed according to the following steps:

s1, positioning the gearbox body N, inserting the two positioning pins 5 into two bottom connecting holes N-3 which are distributed diagonally on the gearbox body N respectively for positioning, and enabling the bearing surface 2-11 on the tool rack 2 to be in surface contact fit with the bottom surface N-1 of the gearbox body N; the two right-angle limiting blocks 4 limit the diagonal outer stops of two bottom corners N-10 which are distributed diagonally on the gearbox body N, and the safety stop blocks 7-1 of the two safety mechanisms 7 respectively limit the front and rear outer stops of two connecting parts N-2 of the gearbox body N;

s2, starting the corner cylinders of the two pressing mechanisms 6 to work and respectively pressing the two connecting parts N-2 of the gearbox body N;

s3, rotating the gear rods 7-2 of the two safety mechanisms 7, and adjusting the gear rods 7-2 of the two safety mechanisms 7 in opposite displacement, so that the gear rods 7-2 of the two safety mechanisms 7 can respectively and longitudinally limit the upper parts of the two connecting parts N-2 of the gearbox casing N;

s4, after clamping, enabling the joint surface N-7 of the gearbox box body N to face upwards, then starting a machine tool (a vertical machine tool) to work, and respectively processing the joint surface N-7, the joint connecting hole N-8 and the sealing gasket groove N-9 of the gearbox box body N;

s5, after the machining is finished, the rotary driving mechanism 3 is started to work and drives the tool rack 2 to rotate for 90 degrees or-90 degrees, and at the moment, the first side surface N-4 of the gearbox body N faces upwards;

s6, starting the machine tool to work, and respectively processing a first side surface N-4 of the gearbox body N, a side semi-circular hole N-5 and a side connecting hole N-6 on the same side;

s7, after the machining is finished, the rotary driving mechanism 3 is started to work and drives the tool rack 2 to rotate for 180 degrees or-180 degrees, and the second side N-4 of the gearbox body N faces upwards;

s8, starting the machine tool to work, and respectively processing a second side face N-4 of the gearbox body N, a side semi-circular hole N-5 and a side connecting hole N-6 on the same side;

s9, after the machining is finished, the corner cylinders of the two pressing mechanisms 6 are started to work, and the two connecting parts N-2 of the gearbox body N are respectively loosened; then the stop levers 7-2 of the two safety mechanisms 7 are rotated, the stop levers 7-2 of the two safety mechanisms 7 are away from each other in a back direction for displacement adjustment, so that the stop levers 7-2 of the two safety mechanisms 7 are away from the two connecting parts N-2 of the gearbox body N respectively to leave a space, and then the workpiece can be directly hoisted and unloaded.

The utility model has the following characteristics and analysis as follows:

firstly, the utility model can be used for positioning and clamping during the processing of large gearbox bodies, and after one-time clamping, the three-dimensional processing can be realized by rotating and then tangentially processing, so as to replace the prior three different clamps and three machine tool configurations and processing, the utility model can avoid the interference of cutters during each processing, reduce the auxiliary time and improve the production efficiency and the processing precision; meanwhile, multiple clamping (the problems of complex assembly and disassembly, time and labor waste and unsafety due to the large and heavy appearance of a large gearbox body) and multiple machine table replacement can be avoided, the processing difficulty can be greatly reduced, the accurate unification is ensured, the relative position precision between each surface and hole sites and the like after processing is improved, the cost investment of clamps, machine tools, station labor and the like is reduced, and the production efficiency is improved;

secondly, the utility model can solve the unsafe problem that when the tool frame 2 and the gearbox body N clamped on the tool frame are turned to the side N-4 at the front side or the rear side upwards, the corner cylinder of the hold-down mechanism 6 breaks down and loses pressure, and the gearbox body N can be turned upside down to cause falling; can ensure that absolute safety is kept in the turning and processing processes;

thirdly, the two pressing mechanisms 6 are adopted by the utility model to respectively press the two connecting parts N-2 of the gearbox body N; because the two connecting parts N-2 of the compaction gearbox box body N are compacted front and back simultaneously, the stress is more stable, and the looseness can be prevented.

Fourthly, the pressing mechanism 6 of the utility model comprises at least two corner cylinders; when the corner cylinder works, after the gearbox box body N is well positioned, the corner cylinder pressure arm can be started to rotate to the position above the connecting part N-2 of the gearbox box body N, and then the corner cylinder vertically moves downwards to linearly move to tightly press the connecting part N-2 of the gearbox box body N; when the gearbox casing N is loosened, the pressure arm of the corner cylinder automatically returns to the original position according to the pressed route to be spaced away from the gearbox casing N, and an operator can smoothly and conveniently detach the gearbox casing N. The corner cylinder of the hold-down mechanism 6 can be automatically pressed or loosened, so that the time for clamping and releasing the workpiece is reduced, the automatic clamping and releasing of the workpiece are realized by the aid of a hydraulic (pneumatic) clamp, and an operator only needs to load and unload the workpiece. The time for automatically clamping and releasing the workpiece is reduced by 90 to 95 percent relative to a manual clamp according to actual measurement and calculation; secondly, the positioning precision is high, and the repeatability of the clamping force ensures the accuracy of the positioning and the clamping; in addition, the space is fully utilized as much as possible due to the rotation function, the space utilization rate of the clamp is improved, and the clamping, placing and unloading of workpieces are facilitated.

Fifth, the utility model discloses because two base angle N-10 that these two right angle stoppers 4 go up diagonal distribution on this gearbox box N are spacing, two base connecting hole N-3 location of diagonal distribution on these two locating pins 5 difference gearbox box N, so both can restrict displacement about this gearbox box N, also restrict this gearbox box N displacement simultaneously, and simple structure, with low costs, also make things convenient for very much when the clamping to place after the diagonal alignment and pack into, reduced the clamping degree of difficulty, improve work efficiency.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (7)

1. The utility model provides a large-scale gearbox box adds clamping apparatus which characterized in that: the device comprises a support (1), a tool rack (2), a rotary driving mechanism (3), two right-angle limiting blocks (4), two positioning pins (5) and a pressing mechanism (6);

the tool rack (2) is rotatably arranged on the support (1) and can be driven to rotate by the rotary driving mechanism (3);

the tool rack (2) is provided with a supporting surface (2-11), and the supporting surface (2-11) is used for surface contact matching with the bottom surface (N-1) of the gearbox body (N);

the two right-angle limiting blocks (4) are fixed on the supporting surfaces (2-11) and are respectively used for limiting two bottom angles (N-10) which are distributed diagonally on the gearbox body (N);

the two positioning pins (5) are fixed on the supporting surfaces (2-11) and are respectively used for positioning two bottom connecting holes (N-3) which are distributed diagonally on the gearbox body (N);

the two pressing mechanisms (6) are arranged on the tool frame (2) and are respectively used for pressing two connecting parts (N-2) of the gearbox body (N).

2. The large gearbox casing machining clamp of claim 1, wherein: the support (1) comprises a bottom plate (1-1) and two support beams (1-2);

the lower ends of the two supporting beams (1-2) are fixedly connected with the bottom plate (1-1) and are distributed at intervals;

the tool rack (2) comprises a support plate (2-1) and two connecting seats (2-2), wherein the support plate (2-1) is provided with a support surface (2-11);

the two connecting seats (2-2) are respectively fixed at two ends of the supporting plate (2-1), and the two connecting seats (2-2) are respectively connected with the two supporting beams (1-2) in a rotating way.

3. The large gearbox casing machining clamp of claim 1, wherein: the rotary driving mechanism (3) adopts a motor or a rotary cylinder.

4. The large gearbox casing machining jig according to any one of claims 1 to 3, characterized in that: the pressing mechanism (6) comprises at least two corner cylinders.

5. The large gearbox casing machining clamp of claim 1, wherein: the gearbox is characterized by further comprising two safety mechanisms (7), wherein the two safety mechanisms (7) are respectively used for pressing two connecting parts (N-2) of the gearbox body (N) to limit;

the safety mechanism (7) comprises a safety stop block (7-1) and a stop lever (7-2), the safety stop block (7-1) is used for laterally limiting the connecting part (N-2) of the gearbox body (N), and the stop lever (7-2) is used for longitudinally limiting the connecting part (N-2) of the gearbox body (N).

6. The large gearbox casing machining clamp of claim 5, wherein: the safety stop block (7-1) is fixed on the supporting surface (2-11), and the stop rod (7-2) is matched and fixed with the safety stop block (7-1) in a threaded manner.

7. The large gearbox casing machining clamp as claimed in claim 5 or 6, wherein: the safety mechanism (7) is provided with a plurality of blocking rods (7-2), and the blocking rods (7-2) are fixed on the safety block (7-1) and distributed side by side.

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