Inner wall processing device for flame-proof type three-phase asynchronous motor shell

Abstract

The utility model discloses an explosion-proof type three-phase asynchronous motor shell inner wall processing device which comprises a bottom frame, a rear supporting plate is fixed to the rear portion of a top plate of the bottom frame, a transverse plate is fixed to the top of the rear supporting plate, a transverse moving mechanism is fixed to the bottom face of the transverse plate, and a lifting mechanism is fixed to the bottom face of a moving block of the transverse moving mechanism. A vertical telescopic column is fixed to a push rod of the lifting mechanism and inserted into a lower guide sleeve installed below the moving block in a sleeved mode, the outer side wall of the vertical telescopic column is tightly attached to the inner side wall of the lower guide sleeve, and the bottom end of the vertical telescopic column extends out of the bottom end of the lower guide sleeve and is provided with two cutting tools. The outer end of the cutting tool extends out of the outer side wall of the bottom end of the vertical telescopic column and is fixedly provided with a cutting knife. The motor shell can be vertically installed and rotated, the top face of the motor shell is horizontally limited through the arc-shaped pressing blocks, rotation of the motor shell is stable, the inner wall machining quality is guaranteed, and the machining effect is good.

Description

Technical field:

[0001] The utility model relates to the technical field related to motor processing equipment, and more specifically to an inner wall processing device for a flameproof three-phase asynchronous motor housing. Background technology:

[0002] Existing motor housings are generally processed by casting. After the casting is completed, the inner wall of the motor housing needs to be machined to make the internal dimensions meet the design requirements.

[0003] The inner wall of the existing small motor housing is generally processed by clamping it on the chuck of a lathe and then processing it. However, for some large motor housings, due to their heavy weight and long length, the lathe chuck is not clamped firmly enough. Moreover, since it is clamped horizontally, the motor housing is heavy, and the clamping is generally done at one end, and the other end cannot be clamped. At this time, when rotating, the motor housing will produce slight shaking due to the action of gravity, affecting the processing quality. Utility model content:

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide an inner wall processing device for a flameproof three-phase asynchronous motor housing. The motor housing can be vertically installed and rotated, and its top surface is horizontally limited by an arc-shaped pressing block, so that its rotation is stable, the inner wall processing quality is guaranteed, and the processing effect is good.

[0005] The solution of the utility model to solve the technical problem is:

[0006] A device for processing the inner wall of a flameproof three-phase asynchronous motor housing comprises a bottom frame, a rear support plate is fixed to the rear of a top plate of the bottom frame, a transverse plate is fixed to the top of the rear support plate, a transverse moving mechanism is fixed to the bottom surface of the transverse plate, a lifting mechanism is fixed to the bottom surface of a moving block of the transverse moving mechanism, a vertical telescopic column is fixed to a push rod of the lifting mechanism, the vertical telescopic column is inserted into a lower guide sleeve installed below the moving block, an outer side wall of the vertical telescopic column is in close contact with the inner side wall of the lower guide sleeve, a bottom end of the vertical telescopic column extends out of the bottom end of the lower guide sleeve and is provided with two cutting tools, and the outer ends of the cutting tools extend out of the outer side wall of the bottom end of the vertical telescopic column and are fixed with cutting tools;

[0007] The middle part of the top plate of the bottom frame is movably connected to a rotating spindle through a bearing, the top end of the rotating spindle extends out of the top surface of the top plate of the bottom frame and is fixed to a horizontal plate, the top surface of the horizontal plate is fixed to a rotating connection seat, and the middle part of the top surface of the rotating connection seat is formed with a mounting socket, and the lower part of the motor housing to be processed is inserted into the mounting socket;

[0008] On the top surface of the top plate of the bottom frame around the horizontal plate, an annular base is fixed. On the front and rear parts of the left and right parts of the top surface of the annular base, telescopic oil cylinders are fixed. The top ends of the telescopic oil cylinders are fixed on the bottom surface of the same C-shaped horizontal arc block. The top ends of the push rods of all the telescopic oil cylinders extend out of the top surface of the horizontal arc block and are fixed to the same C-shaped arc pressing block. The bottom surface of the arc pressing block closely adheres to the top end surface of the motor housing.

[0009] On the bottom end surface of the motor housing, a bottom fixing ring body part is fixed. In the middle of the bottom fixing ring body part, a tapered through hole with a smaller inner diameter at the top and a larger inner diameter at the bottom is formed. In the middle of the bottom surface of the installation jack, a tapered positioning block with a smaller outer diameter at the top and a larger outer diameter at the bottom is fixed. The tapered positioning block is inserted into the tapered through hole, and the outer side wall of the tapered positioning block closely adheres to the inner side wall of the tapered through hole.

[0010] On the inner side wall of the installation jack, spline protrusions are formed. On the outer side wall of the tapered positioning block, spline grooves are formed. The spline protrusions are inserted into the spline grooves, and the two cooperate with each other.

[0011] The bottom end of the rotating main shaft extends out of the bottom surface of the top plate of the bottom frame and is fixed with a transmission gear. On the inner side wall of a side plate of the bottom frame, a driving motor is fixed. On the output shaft of the driving motor, a driving gear is fixed. The driving gear meshes with the transmission gear.

[0012] The lateral movement mechanism includes vertical plates fixed to the left and right parts of the bottom surface of the lateral plate. The two ends of the lateral movement screw are movably connected to the two vertical plates through bearings. On the outer side wall of one of the vertical plates, a movement servo motor is fixed. The movement servo motor drives the lateral movement screw to rotate. The moving block is screwed on the lateral movement screw. A lateral guide rail is fixed to the bottom surface of the lateral plate. A slider is fixed to the top surface of the moving block. The lateral guide rail is inserted into the chute formed on the slider.

[0013] The prominent effect of the present utility model is:

[0014] It can vertically install and rotate the motor housing. It horizontally limits the top surface thereof through the arc pressing block, making its rotation stable, ensuring the machining quality of the inner wall, and having good machining effect. Description of the drawings:

[0015] Figure 1 is a partial structural schematic diagram of the present utility model;

[0016] Figure 2 is Figure 1 a partial enlarged view of

[0017] Figure 3 is Figure 1 a partial enlarged view of another part of

[0018] Figure 4It is a partial upward view at the bottom end of the vertical telescopic column;

[0019] Figure 5 It is a partial top view of the annular base and the telescopic oil cylinder of the present utility model. Specific embodiments:

[0020] In the embodiment, as shown in Figures 1 to 5 A processing device for the inner wall of an explosion-proof three-phase asynchronous motor housing includes a bottom frame 10. A rear support plate is fixed to the rear part of the top plate of the bottom frame 10. A transverse plate is fixed to the top of the rear support plate. A transverse moving mechanism 20 is fixed to the bottom surface of the transverse plate. A lifting mechanism is fixed to the bottom surface of the moving block 21 of the transverse moving mechanism 20. A vertical telescopic column 40 is fixed to the push rod of the lifting mechanism. The vertical telescopic column 40 is inserted into a lower guiding sleeve 50 installed below the moving block 21. The outer side wall of the vertical telescopic column 40 is closely attached to the inner side wall of the lower guiding sleeve 50. The bottom end of the vertical telescopic column 40 extends out of the bottom end of the lower guiding sleeve 50 and is provided with two cutting tools 60. The outer end of the cutting tool 60 extends out of the outer side wall of the bottom end of the vertical telescopic column 40 and is fixed with a cutting blade 61;

[0021] A rotating main shaft 11 is movably connected to the middle part of the top plate of the bottom frame 10 through a bearing. The bottom end of the rotating main shaft 11 extends out of the bottom surface of the top plate of the bottom frame 10 and is fixed with a transmission gear 111. A driving motor 17 is fixed to the inner side wall of a side plate of the bottom frame 10. A driving gear 171 is fixed to the output shaft of the driving motor 17. The driving gear 171 meshes with the transmission gear 111.

[0022] When the driving motor 17 operates, the driving gear 171 drives the transmission gear 111 to rotate, thereby driving the rotating main shaft 11 to rotate.

[0023] Furthermore, the top end of the rotating main shaft 11 extends out of the top surface of the top plate of the bottom frame 10 and is fixed with a horizontal plate 12. A rotating connection seat 13 is fixed to the top surface of the horizontal plate 12. An installation jack 14 is formed in the middle of the top surface of the rotating connection seat 13. The lower part of the motor housing 100 to be processed is inserted into the installation jack 14;

[0024] An annular base 15 is fixed to the top surface of the top plate of the bottom frame 10 around the horizontal plate 12. Telescopic oil cylinders 16 are fixed to the front and rear parts of the left and right parts of the top surface of the annular base 15. The top ends of the telescopic oil cylinders 16 are fixed to the bottom surface of the same C-shaped horizontal arc block 161. The top ends of the push rods of all the telescopic oil cylinders 16 extend out of the top surface of the horizontal arc block 161 and are fixed to the same C-shaped arc pressing block 162. The bottom surface of the arc pressing block 162 is closely attached to the top end surface of the motor housing 100.

[0025] A bottom fixing ring body part 101 is fixed on the bottom end surface of the motor housing 100. A tapered through hole with a smaller inner diameter at the top end and a larger inner diameter at the bottom end is formed in the middle of the bottom fixing ring body part 101. A tapered positioning block 141 with a smaller outer diameter at the top end and a larger outer diameter at the bottom end is fixed in the middle of the bottom surface of the mounting jack 14. The tapered positioning block 141 is inserted into the tapered through hole, and the outer side wall of the tapered positioning block 141 is closely attached to the inner side wall of the tapered through hole. The tapered positioning block 141 realizes the central positioning and installation of the motor housing 100.

[0026] Furthermore, spline protrusions 142 are formed on the inner side wall of the mounting jack 14, and spline grooves are formed on the outer side wall of the tapered positioning block 141. The spline protrusions 142 are inserted into the spline grooves and are matched with each other. With this structure, when the rotary connection seat 13 rotates, the motor housing 100 can rotate together at the same time.

[0027] Furthermore, an arc-shaped groove is formed at the inner side of the bottom surface of the arc-shaped pressing block 162. The arc-shaped self-lubricating plate 163 is nested in the arc-shaped groove. The top surface of the arc-shaped self-lubricating plate 163 is fixed on the top surface of the arc-shaped groove, and the bottom surface of the arc-shaped self-lubricating plate 163 is pressed against the top end surface of the motor housing 100. With this structure, when the motor housing 100 rotates, the bottom surface of its arc-shaped self-lubricating plate 163 limits the top surface of the motor housing 100, making its rotation stable. At the same time, it also reduces friction.

[0028] The lateral moving mechanism 20 includes vertical plates fixed to the left and right parts of the bottom surface of the lateral plate. Both ends of the lateral moving screw 22 are movably connected to the two vertical plates through bearings. A moving servo motor 23 is fixed on the outer side wall of one of the vertical plates. The output shaft of the moving servo motor 23 is a spline shaft, which is inserted into the spline hole at one end of the lateral moving screw 22 to drive the lateral moving screw 22 to rotate. The moving block 21 is screwed on the lateral moving screw 22. A lateral guide rail 24 is fixed to the bottom surface of the lateral plate. A slider 211 is fixed to the top surface of the moving block 21. The lateral guide rail 24 is inserted into the chute formed on the slider 211.

[0029] The lifting mechanism is an electric push rod. Its top end is fixed to the connecting seat fixed to the bottom surface of the moving block 21. The bottom end of the push rod of the electric push rod extends out of the middle through hole of the bottom plate of the lower support frame fixed to the bottom surface of the moving block 21. The bottom surface of the bottom plate of the lower support frame is fixed with a lower guide sleeve 50.

[0030] In the middle of the bottom surface of the vertical telescopic column 40, a long convex part 41 extending left and right is formed or fixed. In the middle of the bottom surface of the long convex part 41, a slot penetrating left and right is formed. The inner parts of two cutting tools 60 are inserted into the left part and the right part of the slot. On one side wall of the slot, a plurality of screw-through holes are formed. The screw part of the locking bolt 42 is screwed into the corresponding screw-through hole. The inner end of the screw part of the locking bolt 42 extends into the slot and presses against one side wall of the corresponding cutting tool 60, and the other side wall of the cutting tool 60 presses against the corresponding inner side wall of the slot. This structure enables the outer end of the cutting tool 60 to move outwards or inwards. By loosening the corresponding locking bolts 42, the cutting tool 60 can be moved inwards or outwards. After the adjustment is completed, tighten the locking bolts 42, which is convenient for adjustment.

[0031] When this embodiment is in use, the bottom fixing ring part 101 is installed at the bottom of the motor housing 100, and its bottom is inserted into the installation jack 14. The outer side wall of the conical positioning block 141 is closely attached to the inner side wall of the conical through hole. At the same time, the spline protrusion 142 is inserted into the spline groove, and the two cooperate. Then, the push rods of all the telescopic oil cylinders 16 retract, and the bottom surface of the arc-shaped self-lubricating plate 163 is pressed against the top surface of the motor housing 100;

[0032] Then, by running the moving servo motor 23, the vertical telescopic column 40 is moved to the middle of the top surface of the motor housing 100 (the horizontal line where the central axis of the vertical telescopic column 40 is located and the horizontal line where the central axis of the conical positioning block 141 is located are in the same vertical plane). Then, through the push of the push rod of the electric push rod, the vertical telescopic column 40 descends and gradually extends into the middle through hole of the motor housing 100. At this time, the motor housing 100 rotates with the rotation of the rotating main shaft 11. At the same time, by running the moving servo motor 23, one of the cutting knives 61 contacts the inner side wall of the top of the middle through hole of the motor housing 100 to realize cutting. As the motor housing 100 rotates, cutting is realized. As the push rod of the electric push rod is gradually pushed, the inner side wall of the middle through hole of the motor housing 100 can be gradually cut downwards. As the moving servo motor 23 runs, the cutting knife 61 continuously deepens the processing of the inner side wall of the middle through hole of the motor housing 100, so that the inner diameter of the middle through hole meets the processing requirements. During the processing, the motor housing 100 rotates stably and the processing effect is good.

Claims

1. An inner wall processing device for an explosion-proof three-phase asynchronous motor housing, including a bottom frame (10), characterized in that: A rear support plate is fixed to the rear part of the top plate of the bottom frame (10). A transverse plate is fixed to the top of the rear support plate. A transverse moving mechanism (20) is fixed to the bottom surface of the transverse plate. A lifting mechanism is fixed to the bottom surface of the moving block (21) of the transverse moving mechanism (20). A vertical telescopic column (40) is fixed to the push rod of the lifting mechanism. The vertical telescopic column (40) is inserted into a lower guiding sleeve (50) installed below the moving block (21). The outer side wall of the vertical telescopic column (40) is in close contact with the inner side wall of the lower guiding sleeve (50). The bottom end of the vertical telescopic column (40) extends out of the bottom end of the lower guiding sleeve (50) and two cutting tools (60) are installed. The outer end of the cutting tool (60) extends out of the outer side wall of the bottom end of the vertical telescopic column (40) and a cutting blade (61) is fixed thereto. A rotating main shaft (11) is movably connected to the middle part of the top plate of the bottom frame (10) through a bearing. The top end of the rotating main shaft (11) extends out of the top surface of the top plate of the bottom frame (10) and a horizontal plate (12) is fixed thereto. A rotating connection seat (13) is fixed to the top surface of the horizontal plate (12). An installation jack (14) is formed in the middle of the top surface of the rotating connection seat (13). The lower part of the motor housing (100) to be processed is inserted into the installation jack (14). An annular base (15) is fixed to the top surface of the top plate of the bottom frame (10) around the horizontal plate (12). Telescopic oil cylinders (16) are fixed to the front and rear parts of the left and right parts of the top surface of the annular base (15). The top ends of the push rods of all the telescopic oil cylinders (16) are fixed to the same C-shaped arc-shaped pressing block (162). The bottom surface of the arc-shaped pressing block (162) is in close contact with the top end surface of the motor housing (100).

2. The inner wall processing device of an explosion-proof three-phase asynchronous motor housing according to claim 1, characterized in that: A bottom fixing ring part (101) is fixed to the bottom end surface of the motor housing (100). A tapered through hole with a smaller inner diameter at the top end and a larger inner diameter at the bottom end is formed in the middle of the bottom fixing ring part (101). A tapered positioning block (141) with a smaller outer diameter at the top end and a larger outer diameter at the bottom end is fixed to the middle of the bottom surface of the installation jack (14). The tapered positioning block (141) is inserted into the tapered through hole. The outer side wall of the tapered positioning block (141) is in close contact with the inner side wall of the tapered through hole.

3. The inner wall processing device of an explosion-proof three-phase asynchronous motor housing according to claim 2, characterized in that: Spline protrusions (142) are formed on the inner side wall of the installation jack (14). A spline groove is formed on the outer side wall of the tapered positioning block (141). The spline protrusions (142) are inserted into the spline groove and the two are matched with each other.

4. The inner wall processing device of an explosion-proof three-phase asynchronous motor housing according to claim 1, characterized in that: An arc-shaped groove is formed at the inner side of the bottom surface of the arc-shaped pressing block (162). An arc-shaped self-lubricating plate (163) is nested in the arc-shaped groove. The top surface of the arc-shaped self-lubricating plate (163) is fixed to the top surface of the arc-shaped groove. The bottom surface of the arc-shaped self-lubricating plate (163) is pressed against the top end surface of the motor housing (100).

5. The inner wall processing device of an explosion-proof three-phase asynchronous motor housing according to claim 1, characterized in that: The bottom end of the rotating main shaft (11) extends out of the bottom surface of the top plate of the bottom frame (10) and a transmission gear (111) is fixed thereto. A driving motor (17) is fixed to the inner side wall of a side plate of the bottom frame (10). A driving gear (171) is fixed to the output shaft of the driving motor (17). The driving gear (171) meshes with the transmission gear (111).

6. The inner wall processing device of an explosion-proof three-phase asynchronous motor housing according to claim 1, characterized in that: The lateral movement mechanism (20) includes vertical plates fixed to the left and right parts of the bottom surface of the lateral plate. Both ends of the lateral movement screw (22) are movably connected to the two vertical plates through bearings. A movement servo motor (23) is fixed to the outer side wall of one of the vertical plates. The movement servo motor (23) drives the lateral movement screw (22) to rotate. A movement block (21) is screwed onto the lateral movement screw (22). A lateral guide rail (24) is fixed to the bottom surface of the lateral plate. A slider (211) is fixed to the top surface of the movement block (21). The lateral guide rail (24) is inserted into a chute formed on the slider (211).

7. The inner wall processing device of an explosion-proof three-phase asynchronous motor housing according to claim 1, characterized in that: The lifting mechanism is an electric push rod, the top end of which is fixed to a connecting seat fixed to the bottom surface of the movement block (21). The bottom end of the push rod of the electric push rod extends out of a central through hole in the bottom plate of the lower support frame fixed to the bottom surface of the movement block (21). A lower guide sleeve (50) is fixed to the bottom surface of the bottom plate of the lower support frame.

8. The inner wall processing device of an explosion-proof three-phase asynchronous motor housing according to claim 1, characterized in that: A long protruding portion (41) extending left and right is formed or fixed in the middle of the bottom surface of the vertical telescopic column (40). A slot penetrating left and right is formed in the middle of the bottom surface of the long protruding portion (41). The interiors of two cutting tools (60) are inserted into the left and right parts of the slot. A plurality of screwed through holes are formed in one side wall of the slot. The screw part of a locking bolt (42) is screwed into a corresponding screwed through hole. The inner end of the screw part of the locking bolt (42) extends into the slot and presses against one side wall of the corresponding cutting tool (60). The other side wall of the cutting tool (60) presses against the corresponding inner side wall of the slot.

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