CN106112630B - The metalworking fixture of the casting blank of electric machine stand - Google Patents

Abstract

The invention provides a metal processing jig for the casting blank of the motor base, which can perform preliminary rapid positioning and reliable clamping of the casting blank during the metal processing process of the casting blank of the motor frame. There is a positioning mechanism that adjusts the lower end surface and the lower end peripheral surface of the casting blank so that the hole core coincides with the rotation axis core of the turntable seat. The turntable seat is also provided with a pressing mechanism, and one end of the pressing plate constituting the pressing mechanism is pressed against On the axial step surface of the air passage provided on the inner wall of the casting blank cavity, the casting blank is clamped between the pressure plate and the support surface of the turntable seat, so that the casting blank remains stable when the metal processing tool is fed, effectively avoiding The phenomenon of turning chipping or casting billet tipping occurs.

Description

Gold processing jig for casting blank of motor frame

technical field

The invention relates to a processing auxiliary tool for a casting blank of a motor frame, in particular to a metal processing fixture for a casting blank of a motor frame for positioning and fixing the casting blank.

Background technique

In the prior art, large-scale motor frames are usually made of castings and then processed by gold. Due to the large size and heavy weight of casting blanks, vertical lathes are generally used in the industry to complete the turning process. The casting blank is usually placed on the rotary table at one end, clamped and fixed by a three-jaw or four-jaw chuck, and the cavity of the casting blank is vertically arranged. Regardless of the process of rough turning or finishing turning, the above-mentioned clamping process is relatively complicated, especially the two ends of the casting blank have to be repeatedly adjusted up and down and clamped, which is difficult to operate; when clamping with a claw chuck, it is impossible to ensure the integrity of the casting blank. The core of the hole coincides with the core of the rotary axis of the rotary table, so it is inevitable that the chipping of the turning tool or the tipping of the casting blank will occur.

Contents of the invention

The invention provides a metal processing jig for the casting blank of the motor frame, which can perform preliminary rapid positioning and reliable clamping of the casting blank of the motor frame during the metal processing process of the casting blank of the motor frame.

In order to achieve the above object, the technical solution adopted by the present invention is: a metal processing fixture for the casting blank of the motor frame, including a turntable seat, and the turntable seat is provided with a lower end surface and a lower end peripheral surface of the casting blank to adjust A positioning mechanism in which the core of the hole coincides with the rotation axis of the turntable seat. The turntable seat is also provided with a pressing mechanism, and one end of the pressing plate constituting the pressing mechanism presses against the axis of the air passage provided on the inner wall of the casting blank cavity. On the stepped surface, the casting blank is clamped between the pressing plate and the supporting surface of the turntable seat.

First, use the positioning mechanism to adjust the lower end surface of the casting blank, so that the hole core of the casting blank is vertical, and then continue to use the positioning mechanism to adjust the lower end surface of the casting blank, so that it moves to the rotary axis of the hole core and the turntable seat in the horizontal plane The cores overlap, and then the pressing mechanism gives the casting blank an axial pressing force, so that the casting blank remains stable when the metal processing tool is fed, effectively avoiding the phenomenon of turning tool chipping or casting blank tipping.

Description of drawings

Fig. 1 is the front view of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is a schematic diagram of the cooperation between the present invention and the casting blank.

Detailed ways

1-3, a metal processing jig for the casting blank of the motor frame, including a turntable seat 10, the turntable seat 10 is provided with a device for adjusting the lower end surface and the lower end peripheral surface of the casting blank 1 so that the hole core and the turntable A positioning mechanism where the rotating shaft cores of the seat 10 overlap. The turntable seat 10 is also provided with a pressing mechanism, and one end of the pressing plate 20 constituting the pressing mechanism is pressed against the air channel 2 provided on the inner wall of the casting blank 1 cavity. On the axial step surface, the casting blank 1 is clamped between the pressing plate 20 and the support surface of the turntable seat 10 . First, use the positioning mechanism to adjust the lower end surface of the casting blank 1, so that the hole core of the casting blank 1 is vertical, and then continue to use the positioning mechanism to adjust the lower end surface of the casting blank 1, so that it moves to its hole core and the turntable seat in the horizontal plane 10, the rotating shaft cores overlap, and then the pressing mechanism gives the casting blank 1 an axial pressing force, so that the casting blank 1 remains stable when the metal processing tool is fed, effectively avoiding the phenomenon of turning tool chipping or casting blank tipping. At the same time, the cutting depth is greatly increased.

In order to give the air channel 2 an axial pressing force, the pressing mechanism includes a vertical rod 30 and a strut 40, the upper rod section of the vertical rod 30 is a threaded section 31, and the threaded section 31 passes through the middle part of the pressing plate 20 and is arranged. One end of the hole 21, the pressure plate 20 is pressed against the axial step surface of the air passage 2 provided on the inner wall of the cavity of the casting blank 1, and the other end is against the strut 40, and the first nut 50 compresses the pressure plate 20 downward. The hole 21 is preferably a strip hole to facilitate the movement of the pressing plate 20. First, one end of the pressing plate 20 is put into the axial step surface of the air passage 2, and the other end is placed on the strut 40, and the first nut 50 is tightened to press the pressing plate 20. Press down, and then the casting blank 1 is pressed.

Further, the positioning mechanism includes an axial positioning mechanism 60 and a radial positioning mechanism 70, the axial positioning mechanism 60 rests on the lower end surface of the casting blank 1 to adjust the verticality of the hole core of the casting blank 1, and the radial positioning mechanism 70 resists Lean on the casting blank 1 lower end peripheral surface to adjust the casting blank 1 hole core and the rotary axis core of the turntable seat 10 to coincide.

Preferably, the axial positioning mechanism 60 includes a first threaded hole 61 axially provided on the turntable seat 10 , and the first bolt 62 passes through the first threaded hole 61 to support the lower end surface of the casting blank 1 . Since the lower end surface of the casting blank 1 may not be on the same horizontal plane, the hole core of the casting blank 1 is not in the vertical direction, and there is an included angle with the rotation axis of the turntable seat 10. At this time, adjust the first bolt 62 until The hole core of the casting blank 1 is in the vertical direction.

After the adjustment of the axial positioning mechanism 60, the direction of the hole core of the casting blank 1 is only parallel to the axis of rotation of the rotary disc 10 without overlapping. In the case of too much processing, in order to avoid this phenomenon, the radial positioning mechanism 70 includes a second threaded hole 71 radially arranged on the side circumference of the turntable seat 10, and the second bolt 72 passes through the second threaded hole 71 and abuts against the On the peripheral surface of the lower end of the casting blank 1 , adjust the second bolt 72 to make the casting blank 1 translate in the horizontal direction until the hole core of the casting blank 1 coincides with the rotation axis of the turntable seat 10 .

For casting blanks 1 of different specifications, the heights of the ventilation ducts 2 are different. The strut 40 is a telescopic rod formed by inserting the inner and outer rods and is provided with a locking unit for locking the two. Adjusting the height of the strut 40 can make it accurately press on the axial steps of the air duct 2 with different heights.

Further, two second nuts 80 are arranged below the pressure plate 20 on the vertical pole 30. When the pressure plate 20 is taken out from the air duct 2, the pressure plate will drop to the lower section of the vertical pole 30. When it needs to be pressed again , it is necessary to move the pressure plate 20 from the lower section of the vertical rod 30 to the upper section, which is time-consuming and laborious. A second nut 80 is set under the pressure plate 20 to hold the pressure plate 20 so that it will not fall; Clamp the pressing plate 20 to make the pressing of the pressing plate 20 on the casting blank 1 more stable.

In order to ensure that the radial positioning mechanism can contact the lower end peripheral surface of the casting blank 1 and then radially position the casting blank 1 , the height of the second bolt 72 is higher than that of the first bolt 62 .

Four positioning mechanisms and pressing mechanisms are evenly arranged, so that the casting blank 1 is evenly stressed, and the metal processing is firm and stable.

Claims (9)

1. A gold processing fixture for a casting blank of a motor frame, comprising a turntable seat (10), characterized in that: the turntable seat (10) is provided with a lower end surface and a lower end peripheral surface for adjusting the casting blank (1) A positioning mechanism that makes its hole core coincide with the rotary shaft core of the turntable seat (10). The turntable seat (10) is also provided with a pressing mechanism, and one end of the pressing plate (20) that constitutes the pressing mechanism is pressed against the casting The casting blank (1) is clamped between the pressing plate (20) and the supporting surface of the turntable seat (10) on the axial step surface of the air passage (2) provided on the inner wall of the blank (1) cavity. 2. The metal processing fixture of the casting blank of the motor frame according to claim 1, characterized in that: the pressing mechanism includes a vertical rod (30) and a support rod (40), and the upper rod (30) The rod section is a threaded section (31), and the threaded section (31) passes through the hole (21) provided in the middle of the pressing plate (20), and one end of the pressing plate (20) presses against the air channel provided on the inner wall of the cavity of the casting blank (1) On the axial step surface of (2), the other end leans against the strut (40), and the first nut (50) compresses the pressing plate (20) downward. 3. The metal processing fixture of the casting blank of the motor frame according to claim 1, characterized in that: the positioning mechanism includes an axial positioning mechanism (60) and a radial positioning mechanism (70), and the axial positioning mechanism (60) Support on the lower end surface of the casting blank (1) to adjust the verticality of the hole core of the casting blank (1), and the radial positioning mechanism (70) leans against the lower end surface of the casting blank (1) to adjust the casting blank (1) The core of the hole coincides with the axis of rotation of the turntable seat (10). 4. The metal processing fixture of the casting blank of the motor frame according to claim 3, characterized in that: the axial positioning mechanism (60) includes a first threaded hole (61) axially arranged on the turntable seat (10), The first bolt (62) passes through the first threaded hole (61) to support the lower end surface of the casting blank (1). 5. The metal processing fixture of the casting blank of the motor frame according to claim 3, characterized in that: the radial positioning mechanism (70) includes a second screw thread radially arranged on the side circumference of the turntable seat (10) hole (71), the second bolt (72) passes through the second threaded hole (71) and leans against the lower end peripheral surface of the casting blank (1). 6. The metal processing fixture of the casting blank of the motor frame according to claim 2, characterized in that: the said support rod (40) is a telescopic rod formed by inserting and fitting the inner and outer rods and is provided with locking the locking unit. 7. The metal processing jig for the casting blank of the motor frame according to claim 2, characterized in that two second nuts (80) are arranged on the vertical rod (30) below the pressing plate (20). 8. The metal processing jig for the casting blank of the motor frame according to claim 5, characterized in that: the height of the second bolt (72) is higher than the height of the first bolt (62). 9. The metal processing jig for the casting blank of the motor frame according to claim 7, characterized in that four positioning mechanisms and pressing mechanisms are evenly arranged.