Feeding mechanism for conveying cylindrical step-shaped blanks

Abstract

The utility model discloses a feeding mechanism for conveying cylindrical step-shaped blanks, which comprises a mounting block, and the rear end of the mounting block is connected with a pushing cylinder which is horizontally arranged towards the front end; a fixed block is fixed at the front end of the mounting block, a rotating block is rotationally connected below the fixed block, and a torsional spring is connected to a rotating part between the rotating block and the fixed block; a containing groove is formed between the rotating block and the fixed block, an inlet is formed in one side of the containing groove, and an outlet is formed in the front side of the containing groove. A guide block protruding upwards is arranged on the top face of the rotating block, and an arc-shaped downwards-concave positioning groove is formed in the top face of the guide block. A concave step groove is formed in the position, corresponding to the position between the guide block and the mounting block, of the top face of the rotating block, and an inclined guide sliding face is arranged between the bottom face of the step groove and the top face of the positioning groove. The feeding device not only can improve safety, but also has the advantages of being low in machining cost, good in applicability and high in feeding stability.

Description

TECHNICAL FIELD

[0001] The utility model relates to a feeding mechanism for conveying cylindrical stepped blank. BACKGROUND

[0002] When processing cylindrical stepped parts (for example, cylindrical stepped nuts), the cylindrical stepped blank needs to be placed into the outer clamping cylinder clamp of the machine tool, and then drilling, tapping and other processes are performed on the inside. Since the outer surface of the cylindrical stepped blank has uneven step structures, it is generally manually taken or taken by a multi-axis robot to place it horizontally into the outer clamping cylinder clamp. In the manual taking and placing operation, the worker needs to wait until the outer clamping cylinder clamp is stably clamped before releasing the fingers, which may cause safety hazards and poor safety. Although the multi-axis robot avoids safety problems, the price of the multi-axis robot is high, which greatly increases the processing cost.

[0003] Therefore, the existing cylindrical stepped blank feeding operation has the problems of poor safety and high processing cost. SUMMARY

[0004] The utility model aims to provide a feeding mechanism for conveying cylindrical stepped blank. The utility model not only improves safety, but also has the advantage of low processing cost.

[0005] The technical scheme of the utility model is a feeding mechanism for conveying cylindrical stepped blank, which comprises a mounting block, a horizontal pusher cylinder connected to the rear end of the mounting block, a pusher hole provided at the position corresponding to the extension rod of the pusher cylinder on the mounting block, a fixed block fixed to the front end of the mounting block, a rotating block rotatably connected below the fixed block, a torsion spring connected between the rotating block and the fixed block, a circular accommodating groove in communication with the pusher hole provided between the rotating block and the fixed block, an inlet for the cylindrical stepped blank on one side of the accommodating groove, an outlet for the cylindrical stepped blank provided at the front side of the accommodating groove, a guide block protruding upward on the top surface of the rotating block, an arc-shaped concave positioning groove provided on the top surface of the guide block, a concave step groove provided at the position corresponding to the guide block and the mounting block on the top surface of the rotating block, and an inclined guide sliding surface provided between the bottom surface of the step groove and the top surface of the positioning groove.

[0006] In the foregoing feeding mechanism for conveying cylindrical stepped blank, a vertical lifting cylinder is connected to the mounting block.

[0007] In the foregoing feeding mechanism for conveying cylindrical stepped blank, the accommodating groove and the pusher hole are coaxially arranged.

[0008] The bottom end of the positioning groove and the axis of the pushing hole are located on the same vertical plane.

[0009] The top surface of the guide block is provided with an inclined protrusion corresponding to one end of the entrance, and the top end of the protrusion is located at one side of the entrance.

[0010] The rotating block is tightly arranged on the mounting block.

[0011] Compared with the prior art, the utility model discloses a fixing block is fixed on the front end of the mounting block, and a rotating block is rotatably connected below the fixing block, a round-hole-shaped accommodating groove is arranged between the rotating block and the fixing block, one side of the accommodating groove is provided with an entrance, so that the cylindrical stepped blank can roll into the accommodating groove from the entrance, the top surface of the rotating block is provided with an upper convex guide block, a step groove is arranged between the guide block and the front end of the mounting block, and an arc-shaped lower concave positioning groove is arranged on the top surface of the guide block, so that the cylindrical stepped blank can be horizontally rolled into the accommodating groove from the entrance and clamped by the positioning groove, the rear end of the mounting block is connected with a forwardly arranged pushing air cylinder, the telescopic rod in the pushing air cylinder can extend into the accommodating groove through a pushing hole, a torsional spring is arranged at the rotating position between the rotating block and the fixing block, and an inclined guide sliding surface is arranged between the bottom surface of the step groove and the top surface of the positioning groove, so that when the pushing air cylinder pushes the cylindrical stepped blank in the accommodating groove towards the outlet, the cylindrical stepped blank can slide along the guide sliding surface towards the positioning groove and push the rotating block downwards, so that the rotating block and the fixing block can clamp the cylindrical stepped blank, so that the cylindrical stepped blank can still be kept horizontal during the pushing process and can better enter the outer clamp cylinder clamp.

[0012] In addition, the utility model discloses that a vertically arranged lifting air cylinder is connected to the mounting block, so that the height of the mounting block can be adjusted, the height difference between the cylindrical stepped blank feeding position and the outer clamp cylinder clamp of the machine tool can be compensated, and the applicability is better.

[0013] The accommodating groove and the pushing hole are coaxially arranged, the central part of the cylindrical stepped blank can be pushed when the telescopic rod of the pushing air cylinder is elongated, and the bottom end of the positioning groove and the axis of the pushing hole are located on the same vertical plane, so that the cylindrical stepped blank can be kept horizontal more stably during the pushing process and can better enter the outer clamp cylinder clamp.

[0014] The top surface of the guide block is provided with an inclined protrusion corresponding to one end of the entrance, and the top end of the protrusion is located at one side of the entrance, so that when the cylindrical stepped blank is put into the entrance, the cylindrical stepped blank can be more smoothly rolled into the accommodating groove and clamped at the positioning groove, and feeding is more convenient.

[0015] The rotating block is close to the mounting block, avoiding the cylindrical stepped blank being clamped at the gap between the two, and ensuring the stability of the feeding.

[0016] Therefore, the safety can be improved, and the machining cost is low, the applicability is good, and the feeding stability is high. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a structural schematic view of the mounting block;

[0018] Fig. 2 is a structural schematic view of the mounting block;

[0019] Fig. 3 is a structural schematic view of the mounting block;

[0020] Fig. 4 is a structural schematic view of the mounting block;

[0021] Fig. 5 is a structural schematic view of the mounting block.

[0022] The marks in the drawings are: 1-mounting block, 2-pushing cylinder, 3-pushing hole, 4-fixed block, 5-rotating block, 6-receiving groove, 7-inlet, 8-guide block, 9-positioning groove, 10-step groove, 11-guiding sliding surface, 12-lifting cylinder, 13-protruding block. DETAILED DESCRIPTION

[0023] The utility model will be further described below in combination with the drawings and examples, but not as the basis for limiting the utility model.

[0024] Example. A feeding mechanism for conveying cylindrical stepped blanks, as shown in Figs. 1 to 5 The rear end of the mounting block 1 is connected with the horizontally oriented front end of the pushing cylinder 2, and the mounting block 1 is provided with a pushing hole 3 corresponding to the position of the telescopic rod of the pushing cylinder 2; the front end of the mounting block 1 is fixed with the fixed block 4, and the fixed block 4 is rotatably connected with the rotating block 5 below, and the rotating part between the rotating block 5 and the fixed block 4 is connected with the torsional spring; the rotating block 5 and the fixed block 4 are provided with a circular hole-shaped receiving groove 6 in communication with the pushing hole 3, one side of the receiving groove 6 is provided with an inlet 7 for the cylindrical stepped blank to enter, and the front side of the receiving groove 6 is provided with an outlet for the cylindrical stepped blank to push out; the top surface of the rotating block 5 is provided with the upwardly protruding guide block 8, the top surface of the guide block 8 is provided with the arc-shaped downwardly recessed positioning groove 9; the top surface of the rotating block 5 is provided with the downwardly recessed step groove 10 corresponding to the position between the guide block 8 and the mounting block 1, and the inclined guiding sliding surface 11 is arranged between the bottom surface of the step groove 10 and the top surface of the positioning groove 9.

[0025] The mounting block 1 is connected with a vertically arranged lifting cylinder 12.

[0026] The accommodating groove 6 and the pushing hole 3 are coaxially arranged.

[0027] The bottom end of the positioning groove 9 and the axis of the pushing hole 3 are located on the same vertical plane.

[0028] The top surface of the guide block 8 is provided with an inclined protrusion 13 corresponding to one end of the entrance 7, and the top end of the protrusion 13 is located on one side of the entrance 7.

[0029] The rotating block 5 is closely arranged on the mounting block 1.

[0030] Working principle: the cylindrical stepped blank is horizontally sent to the entrance 7 by manual taking or vibration conveying track, at this time, the small end of the cylindrical stepped blank is located on the guide block 8, and the large end of the cylindrical stepped blank is located in the stepped groove 10; since the position corresponding to the entrance 7 of the guide block 8 is provided with an inclined protrusion 13, the cylindrical stepped blank at the entrance 7 can roll along the inclined protrusion 13 into the accommodating groove 6, until the small end of the cylindrical stepped blank enters the positioning groove 9 (at this time, the large end of the cylindrical stepped blank also contacts the side wall of the accommodating groove 6, which can better consume the kinetic energy of the cylindrical stepped blank and make it stop), so as to realize positioning.

[0031] The lifting cylinder 12 moves downward to drive the mounting block 1 to move downward, so that the mounting block 1 is aligned with the outer clamping cylinder clamp on the machine tool, and the outer clamping cylinder clamp is elongated and close to the accommodating groove 6; at this time, the pushing cylinder 2 at the rear end of the mounting block 1 drives the telescopic rod thereon to be pushed out from the pushing hole 3 into the accommodating groove 6, so as to push the cylindrical stepped blank in the accommodating groove 6; since the accommodating groove 6 and the pushing hole 3 are coaxially arranged, the telescopic rod on the pushing cylinder 2 can push the central part of the cylindrical stepped blank when it is elongated; at this time, the large end of the cylindrical stepped blank slides along the inclined guide sliding surface 11 to the positioning groove 9, so that the rotating block 5 twists the torsional spring to rotate downward relative to the fixed block 4, until the large end of the cylindrical stepped blank enters the positioning groove 9; subsequently, the telescopic rod of the pushing cylinder 2 continues to elongate, until the cylindrical stepped blank is pushed into the outer clamping cylinder clamp; finally, the outer clamping cylinder clamp stably clamps the cylindrical stepped blank, and shortens to completely pull out the cylindrical stepped blank from the accommodating groove 6; at this time, the rotating block 5 rotates upward to reset under the action of the torsional spring.

Claims

1. A feeding mechanism for feeding cylindrical stepped blanks, characterized in that: The utility model provides a kind of pusher, including installation block (1), the rear end of installation block (1) is connected with the horizontal pusher cylinder (2) for front end arrangement, and installation block (1) is equipped with pusher hole (3) at the position corresponding the telescopic rod of pusher cylinder (2);The front end of the installation block (1) is fixed with fixed block (4), and the lower side of fixed block (4) is rotatably connected with rotating block (5), and the rotating part between rotating block (5) and fixed block (4) is connected with torsion spring;Rotating block (5) and fixed block (4) are equipped with the circular hole-shaped containing groove (6) that is communicated with pusher hole (3), one side of containing groove (6) is equipped with the entrance (7) for cylindrical stepped blank to enter, and the front side of containing groove (6) is equipped with the outlet for cylindrical stepped blank to push out;Rotating block (5) top surface is equipped with the guide block (8) that is projected upwards, and the top surface of guide block (8) is equipped with the arc-shaped concave positioning groove (9);Rotating block (5) top surface is equipped with the concave step groove (10) between the position corresponding guide block (8) and installation block (1), and the bottom surface of step groove (10) and the top surface of positioning groove (9) are equipped with the inclined guide sliding surface (11).

2. The feeding mechanism for feeding cylindrical stepped blanks according to claim 1, characterized in that: The installation block (1) is connected with the vertically arranged lifting cylinder (12).

3. The feeding mechanism for feeding cylindrical stepped blanks according to claim 1, characterized in that: The containing groove (6) and the pusher hole (3) are coaxially arranged.

4. The feeding mechanism for feeding cylindrical stepped blanks according to claim 3, characterized in that: The bottom end of the positioning groove (9) and the axis of the pusher hole (3) are located on the same vertical plane.

5. The feeding mechanism for feeding cylindrical stepped blanks according to claim 1, characterized in that: The top surface of the guide block (8) is provided with an inclined protrusion (13) corresponding to one end of the entrance (7), and the top end of the protrusion (13) is located on one side of the entrance (7).

6. The feeding mechanism for feeding cylindrical stepped blanks according to claim 1, characterized in that: The rotating block (5) is tightly attached to the installation block (1).

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