Lower core frame of vertical molding line casting motor casing

Abstract

The utility model provides a lower core frame of a vertical molding line casting motor casing, which comprises a lower core frame body, and working electric cylinders are arranged on the left side and the right side of the upper part of the inner wall of the lower core frame body through bolts; a stepping motor is mounted in the middle of the lower part of the inner wall of the lower core frame body through a bolt; an output shaft coupling of the stepping motor is connected with a cross shaft; the outer side of the cross shaft is sleeved with a sleeve shaft; the sleeve shaft is mounted on the upper side in the lower core frame body through a bearing; a rotary placing table is supported by a bolt at the upper end of the sleeve shaft; an adsorption stable fixing seat structure is supported at the front end of the rotary placing table; a dragging seat is installed on an output shaft bolt of the working electric cylinder. According to the utility model, through the arrangement of the adsorption stabilization fixing seat structure, the stability is kept by negative pressure suction after the inner core is contacted, and the influence on installation caused by falling due to shaking during rotation is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor shell installation, and particularly relates to a lower core frame of a motor shell cast by a vertical molding line. Background Art

[0002] The lower core frame is a device used to support and fix the motor shell cast on a vertical molding line during the installation of the inner core made of casting sand to assist in the installation. The lower core frame can correspond to the motor shell more stably and accurately, thereby saving effort in the installation work. However, the inner core of the lower core frame cannot be fixed at the placement, so it is easy to shake during the rotation and adjustment process, causing it to fall, affecting the installation and affecting its use. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a lower core frame for a vertical molding line casting motor housing, which realizes the function of adsorption and fixation at the placement of the inner core, thereby maintaining the stability of the placement of the inner core to prevent shaking and falling during rotation.

[0004] The technical scheme is as follows: a lower core frame of a vertical molding line casting motor shell, comprising a lower core frame body, wherein working electric cylinders are bolted on both sides above the inner wall of the lower core frame body; a stepper motor is bolted on the middle part of the lower inner wall of the lower core frame body; a cross shaft is connected to the output shaft coupling of the stepper motor; a sleeve shaft is sleeved on the outer side of the cross shaft; the sleeve shaft is installed on the upper side of the inner part of the lower core frame body through a bearing; a rotating placement table is bolted on the upper end of the sleeve shaft; an adsorption stable fixed seat structure is supported on the front end of the rotating placement table; a drag seat is bolted on the output shaft of the working electric cylinder, and is characterized in that the adsorption stable fixed seat structure comprises a negative pressure box, and a negative pressure gauge is threadedly connected on the upper right side of the front end of the negative pressure box; a vacuum pump is bolted on the left side of the front end of the negative pressure box; adsorption tubes are inlaid on both ends of the left and right ends of the negative pressure box; and a contact seat structure is installed on the end of the adsorption tube.

[0005] Preferably, a ball is movably embedded in the upper part of the drag seat, and the ball is in contact with an annular groove formed in the lower part of the rotating placement table.

[0006] Preferably, the negative pressure box bolts are supported at the front end of the rotating placement table.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] In the utility model, the negative pressure box is provided to facilitate the generation of a negative pressure space for use in conjunction with the contact seat structure.

[0009] In the utility model, the negative pressure gauge is provided to detect the pressure in the negative pressure box. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 It is a structural schematic diagram of the adsorption stable fixing seat structure of the utility model.

[0012] Figure 3 It is a structural schematic diagram of the contact seat placement structure of the utility model.

[0013] In the figure:

[0014] 1. Lower core frame; 2. Working electric cylinder; 3. Stepper motor; 4. Cross shaft; 5. Sleeve shaft; 6. Rotating placement table; 7. Adsorption stable fixed seat structure; 71. Negative pressure box; 72. Negative pressure gauge; 73. Vacuum pump; 74. Adsorption tube; 75. Placement contact seat structure; 751. Box seat body; 752. Solenoid valve; 753. Buffer pad; 754. Adsorption hole; 8. Drag seat. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] Example:

[0017] As attached Figure 1 As shown, a lower core frame of a casting motor housing of a vertical molding line comprises a lower core frame body 1, wherein working electric cylinders 2 are bolted to the left and right sides above the inner wall of the lower core frame body 1; a stepping motor 3 is bolted to the middle part of the lower inner wall of the lower core frame body 1; a cross shaft 4 is connected to the output shaft coupling of the stepping motor 3; a sleeve shaft 5 is sleeved on the outer side of the cross shaft 4; the sleeve shaft 5 is installed on the upper side of the lower core frame body 1 through a bearing; a rotating placing table 6 is bolted to the upper end of the sleeve shaft 5; an adsorption stabilizing fixing seat structure 7 is supported at the front end of the rotating placing table 6; a drag seat 8 is bolted to the output shaft of the working electric cylinder 2.

[0018] As attached Figure 2 As shown, in the above embodiment, specifically, the adsorption stable fixed seat structure 7 includes a negative pressure box 71, and a negative pressure gauge 72 is threadedly connected to the upper right side of the front end of the negative pressure box 71; a vacuum pump 73 is installed with a bolt on the left side of the front end of the negative pressure box 71; adsorption tubes 74 are embedded at both ends of the negative pressure box 71; and a contact seat structure 75 is installed at the end of the adsorption tube 74.

[0019] As attached Figure 3As shown, in the above embodiment, specifically, the placement contact seat structure 75 includes a box seat body 751, and the lower end of the box seat body 751 is threadedly connected with a solenoid valve 752; a buffer pad 753 is glued to the front end of the box seat body 751; the box seat body 751 and the front end of the buffer pad 753 are provided with adsorption holes 754; the inner core is placed on the rotating placement table 6 with multiple grooves and contacts the buffer pad 753 and the box seat body 751, and then the vacuum pump 73 is driven to cooperate with the negative pressure box 71 and the adsorption tube 74 to make the adsorption hole 754 adsorb the inner core to fix it.

[0020] In the above embodiment, specifically, the vacuum pump 73 is connected to the adsorption tube 74 through the negative pressure box 71 .

[0021] In the above embodiment, specifically, the end of the adsorption tube 74 is embedded and connected with the electromagnetic valve 752, and cooperates with the box seat body 751 to perform negative pressure adsorption.

[0022] In the above embodiment, specifically, the box seat body 751 is embedded in the groove on the inner and outer sides of the rotating placement table 6, and the interior of the box seat body 751 is connected to the adsorption hole 754. After contacting the inner core, negative pressure absorption is used to maintain stability to prevent shaking during rotation and falling to affect installation.

[0023] In the above embodiment, specifically, the buffer pad 753 is a rubber pad and is supported by the box seat body 751 to increase the sealing performance at the contact point with the inner core.

[0024] How it works

[0025] The working principle of the utility model is as follows: when installing the inner core made of casting sand on the motor shell cast by the vertical molding line, the inner core is placed on the rotating placement table 6 with multiple grooves and contacts the buffer pad 753 and the box seat body 751, and then the vacuum pump 73 is driven to cooperate with the negative pressure box 71 and the adsorption tube 74 so that the adsorption hole 754 adsorbs the inner core for fixing. After fixing, the stepper motor 3 is driven to cooperate with the cross shaft 4 and the sleeve shaft 5 to drive the rotating placement table 6 to rotate and make the inner core correspond to the motor shell. After the correspondence, the working electric cylinder 2 is driven to cooperate with the drag seat 8 to drive the rotating placement table 6 to rise and make the inner core enter the motor shell for installation to carry out the work of lowering the core.

[0026] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A lower core frame for a vertical molding line casting motor housing, the lower core frame for a vertical molding line casting motor housing comprising a lower core frame body (1), wherein working electric cylinders (2) are bolted to the left and right sides above the inner wall of the lower core frame body (1); a stepper motor (3) is bolted to the middle part of the lower inner wall of the lower core frame body (1); a cross shaft (4) is connected to the output shaft coupling of the stepper motor (3); a sleeve shaft (5) is sleeved on the outer side of the cross shaft (4); the sleeve shaft (5) is mounted on the upper side of the lower core frame body (1) through a bearing; a rotating placement platform (6) is bolted to the upper end of the sleeve shaft (5); an adsorption stable fixing seat structure (7) is supported at the front end of the rotating placement platform (6); a drag seat (8) is bolted to the output shaft of the working electric cylinder (2), characterized in that: The adsorption stable fixing seat structure (7) comprises a negative pressure box (71), the upper right side of the front end of the negative pressure box (71) is threadedly connected with a negative pressure gauge (72); the left side of the front end of the negative pressure box (71) is bolted with a vacuum pump (73); both left and right ends of the negative pressure box (71) are inlaid with adsorption tubes (74); and the end of the adsorption tube (74) is installed with a placement contact seat structure (75).

2. The lower core frame of the vertical molding line casting motor housing according to claim 1, characterized in that: The contact seat structure (75) comprises a box seat body (751), the lower end of which is threadedly connected to a solenoid valve (752); a buffer pad (753) is glued to the front end of the box seat body (751); and adsorption holes (754) are provided at the front ends of the box seat body (751) and the buffer pad (753).

3. The lower core frame of the vertical molding line casting motor housing according to claim 1, characterized in that: A ball is movably embedded in the upper part of the drag seat (8), and the ball contacts the annular groove formed at the lower part of the rotating placement platform (6).

4. The lower core frame of the vertical molding line casting motor housing according to claim 1, characterized in that: The negative pressure box (71) is bolt-supported at the front end of the rotating placement platform (6), and the vacuum pump (73) is connected to the adsorption tube (74) through the negative pressure box (71).

5. The lower core frame of the vertical molding line casting motor housing as claimed in claim 2, characterized in that: The end of the adsorption tube (74) is embedded and connected with the electromagnetic valve (752).

6. The lower core frame of the vertical molding line casting motor housing as claimed in claim 2, characterized in that: The box seat body (751) is embedded in the grooves on the inner and outer sides of the rotating placement platform (6), and the interior of the box seat body (751) is connected to the adsorption hole (754).

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