A transmission mechanism for horizontal shearing machine movable dies

Abstract

The present application relates to a kind of transmission mechanism, specifically, a kind of transmission mechanism for horizontal shearing machine movable die.It includes vertical power conversion mechanism arranged on mounting seat and horizontal power conversion mechanism arranged on movable die base, four corners of movable die base are respectively installed with vertical power conversion mechanism through frame, and horizontal power conversion mechanism is respectively arranged on the movable die base corresponding to each vertical power conversion mechanism, vertical power conversion mechanism is connected with horizontal power conversion mechanism, so that vertical pressure is converted to push movable die base to cross horizontal movement when working.The transmission device, through the face contact state of rotating block A of vertical power conversion mechanism and rotating block B of horizontal power conversion mechanism, realizes the conversion of vertical pressure into horizontal thrust, while effectively reducing the wear between rotating block A and rotating block B, solve the problem that stroke is shortened after existing wedge block corner wear affects later shearing operation.

Description

TECHNICAL FIELD

[0001] The present application relates to a transmission mechanism, in particular to a transmission mechanism for a horizontal shearing machine movable die. BACKGROUND

[0002] The horizontal shearing machine is a mechanical device commonly used for processing the port burr of shell workpieces (such as compressor housings), and its working principle is to convert the vertical pressure generated by the vertically arranged hydraulic cylinder into horizontal pushing force through the inclined sliding block transmission mechanism, so as to push the movable die (moving cutter) to move horizontally and complete the shearing (commonly known as edge cutting) of the port burr of the shell workpiece together with the fixed die (fixed cutter).

[0003] However, the inclined sliding block mechanism has a problem of large wear during shearing, specifically: since the inclined sliding block mechanism is composed of two mutually adhering inclined wedge blocks, one of which moves vertically, and the other of which moves horizontally under the pressure of the vertically moving inclined wedge block, during the process from the beginning of contact to the middle of movement, the inclined surfaces of the two inclined wedge blocks are always in surface contact, and until the inclined wedge blocks are about to end the contact, the inclined surfaces of the two inclined wedge blocks change from surface contact to line contact (see FIG. 2). Figures 1-2 After the line contact of the two inclined wedge blocks, the corners of the inclined wedge blocks are worn, the travel of the worn inclined wedge blocks is shortened, thereby causing incomplete shearing in the later stage and affecting the later shearing operation, and also affecting the service life; therefore, it is necessary to improve it. SUMMARY

[0004] The purpose of the present application is to provide a transmission mechanism for a horizontal shearing machine movable die which effectively reduces the wear of the inclined wedge block to solve the problem of the shortened travel of the inclined wedge block after the corner wear affecting the later shearing operation.

[0005] The technical solution of the present application is:

[0006] A transmission device for a horizontal shearing machine movable die, comprising a vertical power conversion mechanism arranged on the movable die base and a horizontal power conversion mechanism arranged on the movable die, characterized in that: the four corners of the movable die base are respectively provided with a vertical power conversion mechanism through a rack, and the corresponding movable die base of each vertical power conversion mechanism is respectively provided with a horizontal power conversion mechanism, and the vertical power conversion mechanism and the horizontal power conversion mechanism are in contact connection, so as to convert the vertical pressure during work to push the movable die base to move horizontally in a cross shape, thereby realizing the burr shearing of the shell workpiece.

[0007] The vertical power conversion mechanism is composed of a fixed seat, a lower pressing rod and a rotating block A, the fixed seat is a rectangular body, and a longitudinal sliding hole is arranged through the fixed seat; the lower pressing rod is slidably installed in the longitudinal sliding hole, and the rotating block A is movably installed on the lower pressing rod through an installation slot.

[0008] The upper end of the lower pressing rod extends above the fixed seat, and the lower end of the lower pressing rod extends below the fixed seat; the mounting groove is arranged on the lower pressing rod extending below the fixed seat.

[0009] The part extending above the fixed seat of the vertical power conversion mechanism arranged at the four corners is arranged in a stepped manner.

[0010] The horizontal power conversion mechanism is composed of the mounting groove arranged on the movable die base and the rotating block B movably arranged in the mounting groove; the cross sections of the rotating block A and the rotating block B are circular, and one side of the rotating block A and the rotating block B is a tangent surface.

[0011] The tangent surface of the rotating block A and the rotating block B is realized between the vertical power conversion mechanism and the horizontal power conversion mechanism, and under the action of the vertical power, the rotating block A and the rotating block B rotate within the range of 0-50°.

[0012] The beneficial effects of the present application are that:

[0013] The transmission device for the movable die of the horizontal shearing machine realizes the face contact state of the rotating block A of the vertical power conversion mechanism and the rotating block B of the horizontal power conversion mechanism, effectively reduces the abrasion between the rotating block A and the rotating block B while realizing the conversion of the vertical pressure into the horizontal thrust, and solves the problem that the stroke is shortened after the edge abrasion of the existing inclined wedge block, thereby affecting the later shearing operation. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the existing inclined sliding block mechanism;

[0015] Figure 2 It is a structural schematic diagram of the movement state of the existing inclined sliding block mechanism;

[0016] Figure 3 It is a structural schematic diagram of the movable inclined sliding block mechanism installed in the horizontal shearing die;

[0017] Figure 4 It is Figure 3 the sectional view structure schematic diagram of A-A direction;

[0018] Figure 5 It is a structural schematic diagram of the movable die in the present application;

[0019] Figures 6-9 It is a principle structural schematic diagram of the sliding action cooperation of the inclined sliding block unit in the present application;

[0020] Figure 10 It is a three-dimensional structural schematic diagram of the slide roller in the present application;

[0021] Figure 11 It is a three-dimensional structural schematic diagram of the fixed seat in the present application.

[0022] Figure: 1, movable die; 2, movable die base; 3, fixed seat; 4, pressing rod; 5, rotating block A; 6, longitudinal sliding hole; 7, telescopic cylinder; 8, mounting groove; 9, rotating block B; 10, inclined wedge block; 11, fixed die; 12, frame; 13, shearing opening; 14, limiting plate. DETAILED DESCRIPTION

[0023] The transmission device for the movable die of the horizontal shearing machine comprises vertical power conversion mechanisms arranged on the movable die base 2 and horizontal power conversion mechanisms arranged on the movable die 1, the movable die 1 is a cross-shaped plate body, and the vertical power conversion mechanisms are respectively arranged at four corners of the movable die base 2 and are installed on the frame 12, the vertical power conversion mechanism is composed of a fixed seat 3, a pressing rod 4 and a rotating block A 5, the fixed seat 3 is a rectangular body, the fixed seat 3 is fixedly installed on the frame 12, two longitudinal sliding holes 6 are arranged through the fixed seat 3, the cross sections of the two longitudinal sliding holes 6 are vertically distributed, the pressing rod 4 is slidably installed in each longitudinal sliding hole 6, the pressing rod 4 is a rectangular rod, each pressing rod 4 is movably installed with the rotating block A 5 through the mounting groove 8, the cross section of the rotating block A 5 is circular, and one side of the rotating block A 5 is a tangent plane.

[0024] The upper end of the pressing rod 4 extends above the fixed seat 3, the lengths of the pressing rods 4 extending above the fixed seat 3 are arranged in a stepped manner, in use, since the fixed die 11 is a rectangular plate body, the fixed die 11 sequentially contacts each pressing rod 4 in the pressing movement of the fixed die 11, so that the movable die 1 realizes rotary cutting movement.

[0025] The lower end of the pressing rod 4 extends below the fixed seat 3, the telescopic cylinder 7 is installed at the lower end of the pressing rod 4 extending below the fixed seat 3, the piston rod of the telescopic cylinder 7 is fixedly connected with the pressing rod 4, and the cylinder body of the telescopic cylinder 7 is fixedly installed on the frame 12, and the purpose of the arrangement is to realize the resetting of the pressing rod 4 through the telescopic cylinder 7.

[0026] The mounting groove 8 is arranged on the pressing rod 4 extending below the fixed seat 3, a displacement groove is arranged on the fixed seat 3 corresponding to the mounting groove 8, the cross section of the mounting groove 8 is semicircular, the rotating block A 5 is movably installed in the mounting groove 8, the tangent plane part of the rotating block A 5 extends to the outside of the mounting groove 8, and the overall length of the mounting groove 8 is greater than the length of the rotating block, and the purpose of the arrangement is to facilitate the axial sliding of the rotating block B 9 in the mounting groove 8 when the movable die 1 rotates and cuts, so as to play a role of axial displacement compensation.

[0027] The limiting plate 14 is fixedly installed on the fixed seat 3 corresponding to the outside of each rotating block B 9, the limiting plate 14 is used for limiting the rotating block B 9, so as to prevent the rotating block B 9 from excessively sliding axially out of the mounting groove 8.

[0028] The horizontal power conversion mechanism is composed of a mounting groove 8 arranged on the movable die base 2 and a rotating block B9 movably arranged in the mounting groove 8. The mounting groove 8 on the movable die base 2 and the mounting groove 8 on the pressing rod 4 are of the same structure, and the rotating block B9 and the rotating block A5 are of the same structure. The rotating block B9 is circular in cross section, and one side of the rotating block B9 is a tangent plane. The rotating block B9 is movably arranged in the mounting groove 8 on the movable die base 2, and the tangent plane of the rotating block B9 extends to the outside of the mounting groove 8. The purpose of such arrangement is to facilitate the contact between the tangent planes of the rotating block A5 and the rotating block B9, thereby achieving power transmission.

[0029] The tangent plane of the rotating block A5 in the vertical power conversion mechanism is in contact with the tangent plane of the rotating block B9 in the horizontal power conversion mechanism. In use, the pressing rod 4 drives the rotating block A5 to move downward. Since the tangent plane of the rotating block A5 and the tangent plane of the rotating block B9 are in contact, the rotating block B9 rotates synchronously with the rotating block A5 under the pressure of the rotating block A5. In this process, the rotating force of the rotating block A5 and the rotating block B9 is converted into horizontal thrust of the movable die 1, so as to drive the movable die base 2 to move horizontally in a cross shape.

[0030] The tangent plane of the rotating block A5 in the vertical power conversion mechanism is in contact with the tangent plane of the rotating block B9 in the horizontal power conversion mechanism. In use, the pressing rod 4 drives the rotating block A5 to move downward. Since the tangent plane of the rotating block A5 and the tangent plane of the rotating block B9 are in contact, the rotating block B9 rotates synchronously with the rotating block A5 under the pressure of the rotating block A5. In this process, the rotating force of the rotating block A5 and the rotating block B9 is converted into horizontal thrust of the movable die 1, so as to drive the movable die base 2 to move horizontally in a cross shape.

[0031] The transmission device for the movable die of the horizontal shearing machine specifically acts as follows:

[0032] Since the four corners of the movable die base 2 are respectively provided with the fixed seat 3, each fixed seat 3 is respectively provided with two longitudinal sliding holes 6, and each longitudinal sliding hole 6 is slidably arranged with the pressing rod 4, the width of the two pressing rods 4 of the same side and the same direction of the movable die 1 is arranged to face each other, and the length of the pressing rod 4 extending above the fixed seat 3 of the same power group is the same, the length of the pressing rod 4 extending above the fixed seat 3 of different power groups is different, and the length of the pressing rod 4 extending above the fixed seat 3 of each power group is arranged in order in a stepped ladder form. Thus, under the pressing force of the fixed die 11, each power group sequentially and orderly reciprocates.

[0033] As described above, according to the arrangement of the fixed seat 3 on the movable die base 2, the two pressing rods 4 of the same direction of the two fixed seats 3 of the same side are the same power group. (See FIG. 4) Figure 4 In order to distinguish between the power groups, the filling patterns of the eight pressing rods 4 at the four corners of the movable die base 2 are divided, which is convenient for distinguishing the pressing rods 4 and easy to understand. From FIG. 4, it can be seen that the pressing rods 4 of the same direction of the two fixed seats 3 of the same side are the same power group. Figure 4As can be seen, the number of power groups is four, when the fixed mold 11 moves downward, the fixed mold 11 first contacts the first power group, the downward pressing rod 4 of the first power group drives the rotating block A 5 to move downward, at this time, the deflection angle of the section between the rotating block A 5 and the rotating block B 9 is 0°, the rotating block A 5 and the rotating block B 9 are synchronous rotation, in this process, the rotating force of the rotating block A 5 and the rotating block B 9 is converted into the horizontal thrust of the movable mold 1, at this time, the section between the rotating block A 5 and the rotating block B 9 of the first power group is perpendicular to the movable mold base 2, since the third power group is correspondingly arranged with the first power group, when the movable mold 1 moves forward under the thrust of the first power group, the movable mold 1 pushes the third power group slightly upward, the third power group has an upward idle stroke under the action of the telescopic cylinder 7, when the piston rod of the telescopic cylinder 7 completes the idle stroke movement, under the limiting of the telescopic cylinder 7, so that the third power group always keeps in contact with the movable mold 1, thereby the movable mold 1 generates a counter thrust on the rotating block A 5 and the rotating block B 9 of the first power group, as the fixed mold 11 continues to press downward, the fixed mold 11 contacts the second power group while continuing to press downward the first power group, at this time, the deflection angle of the section between the rotating block A 5 and the rotating block B 9 is 50°, so as to facilitate the third power group to form a place.

[0034] The movement mode of the second power group is the same as that of the first power group, under the vertical movement of the second power group being converted into horizontal movement, the movable mold 1 moves right, under the cooperation of the fourth power group, the section between the rotating block A 5 and the rotating block B 9 of the second power group is also converted from 0° to 50°, so as to facilitate the fourth power group to form a place.

[0035] The movement mode of the third power group is the same as that of the second power group, when the fixed mold 11 contacts the third power group, under the vertical movement of the third power group being converted into horizontal movement, the movable mold 1 moves backward, the movement mode of the fourth power group is the same as that of the third power group, when the fixed mold 11 contacts the fourth power group, under the vertical movement of the fourth power group being converted into horizontal movement, the movable mold 1 moves left to reset, through the sequential action of each power group, the movable mold 1 is pushed to move along the square line.

[0036] In the process of movement, the movable mold 1 is provided with a circular shearing hole 13 at the center position, through the movement of the movable mold 1 along the square line, the circular shearing hole 13 of the movable mold 1 cooperates with the movable mold base 2 to perform rotary cutting action, so as to realize the burr shearing of the shell workpiece.

[0037] The transmission device for the horizontal shearing machine movable die keeps the surface contact state of the rotating block A5 of the vertical power conversion mechanism and the rotating block B9 of the horizontal power conversion mechanism, effectively reduces the wear between the rotating block A5 and the rotating block B9 while realizing the conversion of the vertical pressure into the horizontal thrust, and solves the problem that the existing bevel wedge corner wear affects the later shearing operation.

Claims

1. A transmission mechanism for horizontal shearing of a movable die, comprising a vertical power conversion mechanism arranged on a movable die base (2) and a horizontal power conversion mechanism arranged on a movable die (1), characterized in that: Four corners of the movable die base (2) are respectively provided with vertical power conversion mechanisms through the racks (12), and the corresponding movable die base (2) is respectively provided with horizontal power conversion mechanisms, the vertical power conversion mechanisms and the horizontal power conversion mechanisms are in contact connection, so that the vertical pressure is converted to push the movable die base (2) to move horizontally in cross shape to realize the burr shearing of the shell workpiece; The vertical power conversion mechanism comprises a fixed seat (3), a pressing rod (4) and a rotating block A (5), the fixed seat (3) is in the shape of a rectangular body, and a longitudinal sliding hole (6) is formed in the fixed seat (3); the pressing rod (4) is slidably arranged in the longitudinal sliding hole (6), and the rotating block A (5) is movably arranged on the pressing rod (4) through a mounting groove (8); The horizontal power conversion mechanism comprises a mounting groove (8) arranged on the movable die base (2) and a rotating block B (9) movably arranged in the mounting groove (8); the rotating block A (5) and the rotating block B (9) are both circular in cross section, and one side of the rotating block A (5) and the rotating block B (9) is a tangent plane. The vertical power conversion mechanism and the horizontal power conversion mechanism are in surface contact through the tangent planes of the rotating block A (5) and the rotating block B (9), and the rotating block A (5) and the rotating block B (9) rotate within a range of 0-50° under the action of the vertical power.

2. A drive mechanism for a horizontal shear movable die according to claim 1, wherein: The upper end of the pressing rod (4) extends above the fixed seat (3), and the lower end of the pressing rod (4) extends below the fixed seat (3); the mounting groove (8) is arranged on the pressing rod (4) extending below the fixed seat (3).

3. A drive mechanism for a horizontal shear movable die as defined in claim 1 wherein: The part of the vertical power conversion mechanism extending above the fixed seat (3) is arranged in a stepped shape.

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