CN211029110U

CN211029110U - End cover clamp

Info

Publication number: CN211029110U
Application number: CN201922113150.4U
Authority: CN
Inventors: 李骞; 王定军
Original assignee: Siemens Motor China Co ltd
Current assignee: Siemens Electromechanical Technology (Jiangsu) Co.,Ltd.
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-07-17
Anticipated expiration: 2029-11-29

Abstract

The utility model provides an end cover fixture, it includes support frame, cylinder, bearing room location core, clamp plate, pull rod and knock pin subassembly, the support frame has the bottom plate and locates riser on the bottom plate, first mounting hole has been seted up on the bottom plate, be equipped with the second mounting hole on the riser. The cylinder includes a piston rod. The bearing chamber positioning core is fixed with the vertical plate, and a third mounting hole is formed in the bearing chamber positioning core. The pressing plate is provided with a first accommodating hole and a second accommodating hole, the first accommodating hole is smaller than the second accommodating hole, and the first accommodating hole is communicated with the second accommodating hole. One end of the pull rod penetrates through the third mounting hole and the second mounting hole to be fixedly connected with the piston rod, and the pull rod can penetrate through the second accommodating hole of the pressing plate. The knock pin assembly includes a knock pin and a spring. The utility model discloses an end cover anchor clamps can guarantee the levelness that the end cover adds man-hour, realize higher machining efficiency.

Description

End cover clamp

Technical Field

The utility model relates to a technical field, the end cover anchor clamps that use when especially processing the motor end cover are made to the motor.

Background

In the manufacturing process of the motor, machining is needed to be carried out on a motor end cover, a bearing chamber positioning core is installed on the side face of a workbench, an end cover bearing chamber is placed on the bearing chamber positioning core, then a pressing plate is used for pre-pressing the end cover through a compression nut, a level gauge is placed on the bottom foot plane of the end cover, the angle of the end cover is adjusted, the reading of the level gauge is guaranteed to be in the middle position, finally the compression nut is screwed down through a wrench, and the bottom foot plane of the end cover is planed and milled.

However, because footing levelness influences the machining allowance, the levelness needs to be manually corrected, the machining of the plane is avoided, and because the levelness is poor, the machining allowance is large, meanwhile, the rigidity of the clamp is avoided not enough, the machining efficiency needs to be reduced, and therefore the machining efficiency is low.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present invention is to provide an end cap fixture, which can ensure the levelness of the end cap during processing, and achieve high processing efficiency.

The utility model provides an end cover fixture, its end cover that is used for pressing from both sides tight motor. The end cover fixture comprises a support frame, a cylinder, a bearing chamber positioning core, a pressing plate, a pull rod and a top pin assembly, wherein the support frame is provided with a bottom plate and a vertical plate arranged on the bottom plate, a first mounting hole is formed in the bottom plate, and a second mounting hole is formed in the vertical plate. The cylinder includes a piston rod. The bearing chamber positioning core is fixed with the vertical plate, and a third mounting hole is formed in the bearing chamber positioning core. The pressing plate is provided with a first accommodating hole and a second accommodating hole, the first accommodating hole is smaller than the second accommodating hole, and the first accommodating hole is communicated with the second accommodating hole. One end of the pull rod penetrates through the third mounting hole and the second mounting hole to be fixedly connected with the piston rod, and the pull rod can penetrate through the second accommodating hole of the pressing plate. The ejector pin assembly comprises an ejector pin and a spring, the spring is contained in the first mounting hole and is abutted against the bottom of the first mounting hole, the spring is sleeved on the ejector pin, and the ejector pin is partially convex relative to the bottom plate.

In an exemplary embodiment of the end cap fixture, the support frame further includes two support plates, the two support plates are disposed between the bottom plate and the vertical plate, and the two support plates are spaced apart from each other.

In an exemplary embodiment of the end cap fixture, the tie rod has a head portion and a rod portion connected to the head portion, the rod portion and the head portion are cylindrical, and a cross-sectional area of the head portion in a direction perpendicular to the axis is larger than a cross-sectional area of the rod portion in a direction perpendicular to the axis.

In an exemplary embodiment of the end cap fixture, the ejector pin has a top portion and a pressing portion connected to the top portion, the spring is sleeved on the pressing portion, and the spring and the pressing portion are located in the first mounting hole.

In an exemplary embodiment of the end cap fixture, the number of the ejector pin assemblies is two, and the two ejector pin assemblies are arranged at intervals.

In an exemplary embodiment of the end cap fixture, the first mounting hole is a blind hole.

In an exemplary embodiment of the end cap fixture, the bearing housing positioning core is secured to the riser by a plurality of fasteners.

The utility model discloses an among the end cover anchor clamps, end cover anchor clamps include the support frame, the cylinder, bearing room location core, the clamp plate, pull rod and knock pin subassembly, knock pin and the spring of knock pin subassembly can the levelness of self-interacting end cover footing, bearing room location core location end cover central height, the automatic taut pull rod of cylinder can make the clamp plate compress tightly the end cover, and the clamp plate can quick clamping, can guarantee the levelness that the end cover adds man-hour, reduce end cover footing levelling time, reduce the machining allowance, reduce workman intensity of labour, improve machining efficiency.

Drawings

The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings, in which:

fig. 1 is a schematic perspective exploded view of an end cap fixture and an end cap according to an embodiment of the present invention.

Fig. 2 is a perspective view of the end cap holder shown in fig. 1 in one direction in an installed state with an end cap.

Fig. 3 is a perspective view of the end cap holder shown in fig. 1 in another direction with the end cap mounted.

Fig. 4 is a perspective view of the end cap fixture shown in fig. 1 in yet another orientation with the end cap installed.

In the above figures, the reference numerals used are as follows:

100 end cap clamp

10 support frame

12 bottom plate

122 first mounting hole

13 vertical plate

133 second mounting hole

20 cylinder

22 piston rod

30 bearing chamber positioning core

32 third mounting hole

40 pressing plate

42 first accommodation hole

43 second accommodation hole

50 draw bar

52 head

53 rod part

60 knock pin assembly

62 knock pin

622 top part

623 pressing part

63 spring

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail by referring to the following embodiments.

Fig. 1 is a schematic perspective exploded view of an end cap fixture and an end cap according to an embodiment of the present invention, fig. 2 is a schematic perspective view of one direction in an installation state of the end cap fixture and the end cap shown in fig. 1, fig. 3 is a schematic perspective view of another direction in an installation state of the end cap fixture and the end cap shown in fig. 1, please refer to fig. 1 to fig. 3, an end cap fixture 100 of the present embodiment is used for clamping an end cap 200 of a motor, and the end cap fixture 100 includes a support frame 10, a cylinder 20, a bearing housing positioning core 30, a pressure plate 40, a pull rod 50, and a knock pin assembly 60. The support frame 10 has a bottom plate 12 and a vertical plate 13 disposed on the bottom plate 12, the bottom plate 12 is provided with a first mounting hole 122, and the vertical plate 13 is provided with a second mounting hole 133. The cylinder 20 includes a piston rod 22. The bearing chamber positioning core 30 is fixed with the vertical plate 13, and a third mounting hole 32 is formed in the bearing chamber positioning core 30. The pressing plate 40 has a first receiving hole 42 and a second receiving hole 43, the first receiving hole 42 is smaller than the second receiving hole 43, and the first receiving hole 42 is communicated with the second receiving hole 43. One end of the pull rod 50 passes through the third mounting hole 32 and the second mounting hole 133 to be fixedly connected with the piston rod 22, and the pull rod 50 can pass through the second receiving hole 43 of the press plate 40. The top pin assembly 60 includes a top pin 62 and a spring 63, the spring 63 is accommodated in the first mounting hole 122 and is abutted against the bottom of the first mounting hole 122, the spring 63 is sleeved on the top pin 62, and a portion of the top pin 62 protrudes outwards relative to the base plate 12.

More specifically, the support frame 10 further includes two support plates 14, the two support plates 14 are disposed between the bottom plate 12 and the vertical plate 13, and the two support plates 14 are disposed at intervals.

The cylinder 20 drives the piston rod 22 in a telescopic motion. The bearing chamber positioning core 30 is fixed to the vertical plate 13 by a plurality of fasteners.

The tie rod 50 has a head portion 52 and a shaft portion 53 connected to the head portion 52, the shaft portion 53 and the head portion 52 being cylindrical, the cross-sectional area of the head portion 52 in the direction perpendicular to the axis being larger than the cross-sectional area of the shaft portion 53 in the direction perpendicular to the axis.

The number of the knock pin assemblies 60 is two, and the two knock pin assemblies 60 are provided at intervals. The top pin 62 has a top portion 622 and a pressing portion 623 connected to the top portion 622, the spring 63 is sleeved on the pressing portion 623, and the spring 63 and the pressing portion 623 are located in the first mounting hole 122. The first mounting hole 122 is a blind hole, and the pressing portion 623 of the top pin 62 abuts against the bottom of the blind hole.

In the using state of the end cover fixture 100, the pressing plate 40 is detachable, the bearing chamber positioning core 30 is fixed with the vertical plate 13, and the pull rod 50 passes through the third mounting hole 32 of the bearing chamber positioning core 30 and the second mounting hole 133 of the vertical plate 13 to be fixed with the piston rod 22. The pressing portion 623 of the knock pin 62 and the spring 63 are located in the first mounting hole 122 of the base plate 12.

Fig. 4 is a perspective view of the end cap fixture and the end cap shown in fig. 1 in another direction, please refer to fig. 4, when the end cap 200 needs to be machined, the end cap 200 and the pressing plate 40 sequentially pass through the pull rod 50, the end cap 200 is placed on the top 622 of the top pin 62, and the bottom of the end cap 200 faces upward. Under the gravity of the end cap 200 and the elastic force of the spring 63, the levelness of the end cap 200 can be automatically adjusted, and the levelness of the bottom foot plane of the end cap 200 is better. The cylinder 20 drives the piston rod 22 to contract, the rod part 53 of the pull rod 50 is accommodated in the first accommodating hole 42 of the press plate 40, the head part 52 of the pull rod 50 presses the press plate 40 due to the diameter of the head part 52 of the pull rod being larger than the diameter of the first accommodating hole 42, the press plate 40 presses the end cap 200, and then the bottom plane of the end cap 200 is machined. After the process is completed, the air cylinder 20 drives the piston rod 22 to extend, the pressure plate 40 is moved so that the pull rod 50 is located in the second receiving hole 43 of the pressure plate 40, the pressure plate 40 is removed because the diameter of the second receiving hole 43 is larger than the diameter of the head 52 of the pull rod 50, and then the end cap 200 is removed. And the process is circulated.

It should be noted that the material of the bearing chamber positioning core 30 is copper, which can prevent the bearing chamber of the end cap 200 from being worn during the installation process, and in order to reduce the contact area, the bearing chamber positioning core 30 is in a triangular arc shape. Because the footing plane of the end cover 200 needs to be horizontal, the footing plane is automatically adjusted by utilizing the ejector pins 62 and the springs 63, the ejector pins 62 are symmetrically distributed at two ends and are close to two sides of the end cover 200 as much as possible, the springs are selected to be small in diameter and few in number of turns, the torque is increased, and the ejector pins 62 can conveniently adjust the circumferential direction of the end cover. The ejector pin 60 needs to be in contact with the end cover 200 before the bearing chamber positioning core 30 is in contact with the end cover, the top of the ejector pin 60 is in a circular design, and contact friction between the end cover 200 and the ejector pin 60 in the feeding process is reduced.

The utility model discloses an end cover anchor clamps have following advantage at least:

1. the utility model discloses an among the end cover anchor clamps, end cover anchor clamps include the support frame, the cylinder, bearing room location core, the clamp plate, pull rod and knock pin subassembly, knock pin and the spring of knock pin subassembly can the levelness of self-interacting end cover footing, bearing room location core location end cover central height, the automatic taut pull rod of cylinder can make the clamp plate compress tightly the end cover, and the clamp plate can quick clamping, can guarantee the levelness that the end cover adds man-hour, reduce end cover footing levelling time, reduce the machining allowance, reduce workman intensity of labour, improve machining efficiency.

2. In one embodiment of the end cover clamp of the utility model, workers do not need to adjust the level of the bottom feet of the end cover, thereby improving the utilization rate of equipment and improving the productivity; the labor intensity of workers is reduced, and the utilization rate of personnel is improved; the footing levelness is good, and the machining allowance reduces, and the processing rigidity is high, reduces the end cover and scraps and reprocesses the cost.

3. The utility model discloses an in the embodiment of end cover anchor clamps, owing to prevent to compress tightly the end cover and warp, consider that the clamp plate compresses tightly bearing room strengthening rib position, trompil on the clamp plate designs into calabash shape size, the quick clamping clamp plate of being convenient for.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. End cover anchor clamps for the end cover of tight motor of clamp, its characterized in that includes:

the supporting frame (10) is provided with a bottom plate (12) and a vertical plate (13) arranged on the bottom plate (12), a first mounting hole (122) is formed in the bottom plate (12), and a second mounting hole (133) is formed in the vertical plate (13);

a cylinder (20) including a piston rod (22);

the bearing chamber positioning core (30) is fixed with the vertical plate (13), and a third mounting hole (32) is formed in the bearing chamber positioning core (30);

the pressing plate (40) is provided with a first accommodating hole (42) and a second accommodating hole (43), the first accommodating hole (42) is smaller than the second accommodating hole (43), and the first accommodating hole (42) is communicated with the second accommodating hole (43);

a pull rod (50), wherein one end of the pull rod (50) passes through the third mounting hole (32) and the second mounting hole (133) to be fixedly connected with the piston rod (22), and the pull rod (50) can pass through the second accommodating hole (43) of the pressure plate (40); and

the top pin assembly (60) comprises a top pin (62) and a spring (63), the spring (63) is accommodated in the first mounting hole (122) and is abutted against the bottom of the first mounting hole (122), the spring (63) is sleeved on the top pin (62), and part of the top pin (62) protrudes outwards relative to the bottom plate (12).

2. The end cap fixture as claimed in claim 1, wherein the support bracket (10) further comprises two support plates (14), the two support plates (14) are disposed between the bottom plate (12) and the vertical plate (13), and the two support plates (14) are spaced apart.

3. The end cap clamp according to claim 1, wherein the tie rod (50) has a head portion (52) and a stem portion (53) connected to the head portion (52), the stem portion (53) and the head portion (52) being cylindrical, a cross-sectional area of the head portion (52) in a direction perpendicular to the axis being larger than a cross-sectional area of the stem portion (53) in the direction perpendicular to the axis.

4. The end cap clamp according to claim 1, wherein the top pin (62) has a top portion (622) and a pressing portion (623) connected to the top portion (622), the spring (63) is sleeved on the pressing portion (623), and the spring (63) and the pressing portion (623) are located in the first mounting hole (122).

5. The end closure clamp of claim 1, wherein the number of the ejector pin assemblies (60) is two, and two ejector pin assemblies (60) are spaced apart.

6. The end cap fixture as claimed in claim 1, wherein the first mounting hole (122) is a blind hole.

7. The end cap fixture as claimed in claim 1, wherein the bearing chamber positioning core (30) is secured to the riser (13) by a plurality of fasteners.