Feeding positioning mechanism of perforating machine

Abstract

A perforating machine feeding positioning mechanism belongs to the technical field of perforating machines and comprises a perforating machine workbench, a base is mounted at the top end of the perforating machine workbench, a lead screw is rotatably mounted in an inner cavity of the base in the horizontal direction and intermittently and circumferentially rotates through an intermittent rotating mechanism, and the outer wall of the lead screw is in threaded connection with a moving seat. The top end of the movable seat is connected with a positioning part; a workpiece is positioned in an inner cavity of the positioning part; the intermittent rotating mechanism comprises a driving part and a rotating part. The workpiece does not need to be repeatedly disassembled and fixed after being positioned in the inner cavity of the fixed seat, the position of the workpiece can be adjusted by driving the fixed seat and the positioned workpiece to integrally move, the unnecessary step of repeatedly positioning the workpiece is omitted, meanwhile, it can be guaranteed that the advancing distance of the workpiece is the same every time, and the working efficiency is improved. And therefore, the outer wall of the workpiece can be accurately perforated at equal intervals.

Description

Technical Field

[0001] The utility model belongs to the technical field of punching machines, and in particular relates to a feeding positioning mechanism for a punching machine. Background Art

[0002] A punching machine is an EDM machine that uses the EDM principle to process holes less than 5mm in size. It is used to process small and medium-sized dies. Its processing feature is that it is not limited by the hardness of the metal material. The template can be quenched first and then the machine can be used to process the required hole type to ensure quality and increase service life.

[0003] When the punching machine in the related technology is processing, the workpiece is clamped by a simple clamp, and the workpiece is punched by the punching machine. If the outer wall of the workpiece needs to be punched in rows, the workpiece needs to be disassembled from the simple clamp, and the workpiece position is translated, and then the workpiece is re-positioned with the help of the simple clamp to achieve the row of punching processing on the outer wall of the workpiece; the above method requires the workpiece to be repeatedly disassembled and fixed at the clamp, which is troublesome to operate, and it is difficult to accurately ensure that the distance of the workpiece translation spacing is equal each time, and thus it is difficult to ensure that the perforation spacing of the outer wall of the workpiece is equal. Based on this, the present utility model is proposed. Utility Model Content

[0004] In view of the problem that when the outer wall of the workpiece is punched in rows in the prior art, the workpiece needs to be repeatedly disassembled and fixed at the fixture, which is cumbersome to operate and difficult to accurately ensure that the distance of the workpiece translation spacing is equal each time, and thus it is difficult to ensure the uniform spacing of the holes on the outer wall of the workpiece, the utility model provides a feeding and positioning mechanism for a punching machine. After the workpiece is positioned in the inner cavity of the fixing seat, there is no need to repeatedly disassemble and fix it. The fixing seat and the positioned workpiece are driven to move as a whole to adjust the position of the workpiece, eliminating the unnecessary steps of repeatedly positioning the workpiece, and at the same time ensuring that the distance traveled by the workpiece is the same each time, thereby ensuring that the outer wall of the workpiece is accurately punched with equal spacing. The specific technical scheme is as follows:

[0005] A feeding and positioning mechanism for a punching machine comprises a punching machine worktable, a base is installed on the top of the punching machine worktable, a lead screw is installed in the inner cavity of the base for rotation along the horizontal direction, the lead screw realizes intermittent circumferential rotation through an intermittent rotation mechanism, a moving seat is threadedly connected to the outer wall of the lead screw, a positioning component is connected to the top of the moving seat, and a workpiece is positioned in the inner cavity of the positioning component.

[0006] In the above technical solution, the intermittent rotation mechanism includes a driving component and a rotating component.

[0007] In the above technical solution, the driving component includes a driving rod rotatably connected to the right inner wall of the base, and further includes a first limiting disc and a rotating rod sequentially installed on the outer wall of the driving rod from left to right. A拨动销 (poking pin) is vertically installed at the free end of the outer side of the rotating rod. The driving component further includes a motor installed on the right side wall of the base, and the output end of the motor is connected to the driving rod.

[0008] In the above technical solution, the rotating component includes a second limiting disc and a rotating member sequentially installed on the right side of the outer wall of the lead screw from left to right. A plurality of concave arcs are circumferentially and equidistantly arranged on the outer wall of the second limiting disc, and the radian of the concave arc on the outer wall of the second limiting disc is adapted to the radian of the outer wall of the first limiting disc. A plurality of support rods are circumferentially and equidistantly arranged on the side wall of the rotating member, and the拨动销 (poking pin) is rotatably embedded in the gap between the support rods arranged on the outer walls of two adjacent rotating members.

[0009] In the above technical solution, a plurality of optical bars are horizontally installed on the inner wall of the base, and the moving seat is slidably sleeved on the outer wall of the optical bar.

[0010] In the above technical solution, the positioning component includes a fixed seat installed on the upper surface of the moving seat. A through groove is opened in the fixed seat from left to right. An installation seat is installed on the front side of the outer wall of the fixed seat. A cylinder is installed at the top of the installation seat, and the output end of the cylinder penetrates the outer wall of the fixed seat backward. A positioning plate is vertically installed at the output end of the cylinder, and the front and rear side walls of the workpiece are respectively attached to the rear side of the outer wall of the positioning plate and the inner side wall of the driving rod.

[0011] In the above technical solution, the cross-sectional shape of the fixed seat is set to a "凵" shape.

[0012] In the above technical solution, a fence is vertically installed on the upper surface of the workbench of the perforating machine. The fence is composed of plates perpendicular to the upper surface of the workbench of the perforating machine connected end to end, and the fence surrounds the outside of the intermittent rotation mechanism and the positioning component.

[0013] A feeding and positioning mechanism of a perforating machine of the present utility model has the following beneficial effects compared with the prior art:

[0014] 1. When perforating the outer wall of a workpiece in rows, it is necessary to repeatedly disassemble and fix the workpiece at the fixture, which is troublesome to operate. In the present utility model, after the workpiece is positioned in the inner cavity of the fixed seat, there is no need for repeated disassembly and fixation. Through the lead screw, the moving seat and the fixed seat, the fixed seat and the positioned workpiece as a whole can be driven to move to realize the adjustment of the position of the workpiece relative to the perforating machine, and perform row-by-row perforating processing on the outer wall of the workpiece.

[0015] Second, in view of the problem that it is difficult to accurately ensure that the distance of each translation interval of the workpiece is equal, and thus it is difficult to ensure the equal spacing of the perforations on the outer wall of the workpiece in the related art, the utility model can drive the rotating member to perform intermittent rotation in the circumferential direction through a motor, a driving rod, a first limit plate, a rotating rod, a toggle pin, and a second limit plate, so as to ensure that the rotating member drives the lead screw to rotate at the same angle each time, and thus ensure that the distance traveled by the moving seat on the outer wall of the lead screw is the same each time, driving the fixed seat at the top of the moving seat and the workpiece to synchronously travel the same distance, so as to achieve equal spacing perforation processing on the outer wall of the workpiece;

[0016] In summary, after the utility model positions the workpiece in the inner cavity of the fixing seat, there is no need for repeated disassembly and fixation. The position of the workpiece can be adjusted by driving the fixing seat and the positioned workpiece to move as a whole, thereby eliminating the unnecessary steps of repeatedly positioning the workpiece and ensuring that the distance the workpiece moves is the same each time, thereby ensuring that the outer wall of the workpiece is accurately perforated with equal spacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the workbench of the utility model punching machine;

[0018] Figure 2 This is a front cross-sectional view of the base of the utility model;

[0019] Figure 3 It is a right side cross-sectional view of the fixing seat of the utility model;

[0020] Figure 1-Figure 3 Among them, 1. punching machine workbench, 2. base, 3. driving rod, 4. first limit plate, 5. rotating rod, 6. toggle pin, 7. motor, 8. screw, 9. second limit plate, 10. rotating part, 11. moving seat, 12. light bar, 13. fixed seat, 14. mounting seat, 15. cylinder, 16. positioning plate, 17. workpiece, 18. enclosure. DETAILED DESCRIPTION

[0021] The following is a combination of specific implementation cases and attached Figure 1-Figure 3 The present invention is further described below, but the present invention is not limited to these embodiments.

[0022] In view of the problem that when the outer wall of a workpiece is punched in rows in the prior art, the workpiece needs to be repeatedly disassembled and fixed at the fixture, which is troublesome to operate and it is difficult to accurately ensure that the distance of the workpiece translation spacing is equal each time, and thus it is difficult to ensure that the spacing of the holes on the outer wall of the workpiece is uniform, refer to Figure 1-3As shown, a feeding and positioning mechanism for a punching machine is proposed, comprising a punching machine worktable 1, at the top of which the punching machine worktable 1 is used to perform the punching process of the workpiece, a base 2 is installed at the top of the punching machine worktable 1, a lead screw 8 is installed in the inner cavity of the base 2 along the horizontal direction through a bearing, the lead screw 8 realizes intermittent circumferential rotation through an intermittent rotation mechanism, a moving seat 11 is threadedly connected to the outer wall of the lead screw 8, the moving seat 11 can be driven to intermittently move through the intermittently rotating lead screw 8, and the angle of each intermittent rotation of the lead screw 8 is the same, so that the moving distance of the moving seat 11 can be the same each time. At the same time, two optical rods 12 are installed on the inner wall of the base 2 in the horizontal direction, and the moving seat 11 is slidably mounted on the outer wall of the optical rod 12. When the moving seat 11 moves, it can move in the horizontal direction under the limiting action of the optical rod 12 without deflection. A positioning component is connected to the top of the moving seat 11, and a workpiece 17 is positioned in the inner cavity of the positioning component. The moving seat 11 moves the same distance each time, driving the positioning component and the workpiece 17 to move synchronously the same distance, so that the workpiece 17 can be fed equidistantly each time, and the equidistant punching processing of the outer wall of the workpiece 17 can be realized in cooperation with the punching machine.

[0023] The intermittent rotation mechanism is introduced below. Figure 2 and Figure 3 As shown, the intermittent rotation mechanism includes a driving component and a rotating component. The driving component provides driving force, and cooperates with the rotating component to drive the lead screw 8 to achieve intermittent rotation at the same angle.

[0024] See also Figure 2-3 As shown, the driving component includes a driving rod 3 rotatably connected to the right side of the inner wall of the base 2 through a bearing, and also includes a first limit plate 4 and a rotating rod 5 installed on the outer wall of the driving rod 3 from left to right in sequence. A toggle pin 6 is vertically installed on the outer free end of the rotating rod 5. The rotation of the driving rod 3 can drive the first limit plate 4, the rotating rod 5 and the toggle pin 6 to rotate synchronously. The driving component also includes a motor 7 installed on the right side wall of the base 2, and the output end of the motor 7 is connected to the driving rod 3 through a coupling. The driving rod 3 is rotated by means of the turned-on motor 7 to drive the first limit plate 4, the rotating rod 5 and the toggle pin 6 to rotate synchronously.

[0025] The rotating component includes a second limiting plate 9 and a rotating member 10 which are sequentially installed on the right side of the outer wall of the lead screw 8 from left to right. The outer wall of the second limiting plate 9 is provided with six concave arcs at equal intervals in the circumferential direction, and the curvature of the concave arcs on the outer wall of the second limiting plate 9 matches the curvature of the outer wall of the first limiting plate 4. The side wall of the rotating member 10 is provided with six support rods at equal intervals in the circumferential direction, and the toggle pin 6 is rotatably embedded in the gap between the support rods provided on the outer walls of two adjacent rotating members 10.

[0026] When the toggle pin 6 rotates during the rotation process, the rotating member 10 is synchronously rotated circumferentially. At this time, the lead screw 8 and the second limit disk 9 rotate circumferentially together. The moving seat 11 threadedly connected to the outer wall of the second limit disk 9 drives the fixed seat 13 at the top and the positioned workpiece 17 to move synchronously to the left by a fixed distance. When the toggle pin 6 rotates until it disengages from the outer wall of the rotating member 10, the inner concave arc of the outer wall of the first limit disk 4 fits with the outer wall of the second limit disk 9 to ensure the stable position of the second limit disk 9 and the lead screw 8 at this time and they no longer rotate.

[0027] For main reference Figure 3 As shown, the positioning component includes a fixed seat 13 installed on the upper surface of the moving seat 11. The fixed seat 13 is provided with a through groove from left to right. The cross-sectional shape of the fixed seat 13 is set in a "U" shape, and there is enough space in the inner cavity of the through groove of the fixed seat 13 for positioning workpieces 17 with different diameters. An installation seat 14 is installed on the front side of the outer wall of the fixed seat 13. A cylinder 15 is installed at the top of the installation seat 14. The cylinder 15 is a self-locking cylinder, and its output end can stay at any position and achieve self-locking. Moreover, the output end of the cylinder 15 penetrates the outer wall of the fixed seat 13 backward. A positioning plate 16 is vertically installed at the output end of the cylinder 15. The front and rear side walls of the workpiece 17 are respectively in contact with the rear side of the outer wall of the positioning plate 16 and the inner side wall of the driving rod 3. By opening the cylinder 15, the positioning plate 16 is driven to move backward, and the positioning plate 16 pushes the workpiece 17 backward, so that the workpiece 17 is stabilized under the combined limiting action of the positioning plate 16 and the inner wall of the fixed seat 13.

[0028] In addition, a fence 18 is vertically installed on the upper surface of the workbench 1 of the perforating machine. The fence 18 is composed of plates perpendicular to the upper surface of the workbench 1 of the perforating machine that are connected end to end. The fence 18 is arranged outside the intermittent rotation mechanism and the positioning component. With the help of the fence 18, an enclosed structure can be formed on the upper surface of the workbench 1 of the perforating machine to provide a relatively enclosed working environment for perforation and ensure operation safety.

[0029] The working principle of the feeding and positioning mechanism of the perforating machine in this embodiment is as follows:

[0030] The workpiece 17 is placed parallel in the inner cavity of the fixed seat 13. The output end of the opened cylinder 15 drives the positioning plate 16 to push the front side wall of the workpiece 17 until the front and rear side walls of the workpiece 17 are positioned under the combined action of the positioning plate 16 and the inner side wall of the fixed seat 13, thereby realizing the clamping and positioning of the workpiece 17 in the inner cavity of the fixed seat 13.

[0031] If it is necessary to perform equidistant row punching processing on the outer wall of the workpiece 17, the driving rod 3, the first limiting plate 4, the rotating rod 5, and the toggle pin 6 are driven to rotate synchronously in a circumferential direction by means of the turned-on motor 7. When the toggle pin 6 rotates, the rotating member 10 is driven to rotate synchronously in a circumferential direction. At this time, the lead screw 8 and the second limiting plate 9 rotate circumferentially together, and the movable seat 11 threadedly connected to the outer wall of the second limiting plate 9 drives the top fixed seat 13 and the positioned workpiece 17 to move synchronously to the left by a fixed distance; when the toggle pin 6 rotates to disengage from the outer wall of the rotating member 10, the outer wall of the first limiting plate 4 fits with the inner concave arc of the outer wall of the second limiting plate 9, ensuring that the second limiting plate 9 and the lead screw 8 are in a stable position and no longer rotate, thereby ensuring that the movable seat 11, the fixed seat 13 and the workpiece 17 are in a stable position and will not move. At this time, the punching machine can be used to realize the punching processing operation after the workpiece 17 moves a fixed distance; repeat the above steps, by intermittently displacing the workpiece 17 to the left by the same distance, cooperating with the punching action of the punching machine, to realize the equidistant row punching processing of the outer wall of the workpiece 17;

[0032] After the utility model positions the workpiece 17 in the inner cavity of the fixing seat 13, there is no need to repeatedly disassemble and fix it. The fixing seat 13 and the positioned workpiece 17 can be driven to move as a whole to adjust the position of the workpiece 17, thereby eliminating the unnecessary steps of repeatedly positioning the workpiece 17 and ensuring that the distance traveled by the workpiece 17 is the same each time, thereby ensuring that the outer wall of the workpiece 17 is accurately perforated with equal spacing.

[0033] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A punching machine feeding positioning mechanism, comprising a punching machine workbench (1), characterized in that: At the top of the workbench (1) of the perforating machine, a base (2) is installed. Inside the base (2), a lead screw (8) is rotatably installed horizontally. The lead screw (8) realizes intermittent circumferential rotation through an intermittent rotation mechanism. A moving seat (11) is threadedly connected to the outer wall of the lead screw (8). The top of the moving seat (11) is connected with a positioning component, and a workpiece (17) is positioned inside the positioning component.

2. A punching machine feeding and positioning mechanism according to claim 1, characterized in that: The intermittent rotation mechanism includes a driving component and a rotating component.

3. A punching machine feeding and positioning mechanism according to claim 2, characterized in that: The driving component includes a driving rod (3) rotatably connected to the right side inner wall of the base (2). It also includes a first limit disk (4) and a rotating rod (5) sequentially installed on the outer wall of the driving rod (3) from left to right. A拨动 pin (6) is vertically installed at the free end of the outer side of the rotating rod (5). The driving component further includes a motor (7) installed on the right side wall of the base (2), and the output end of the motor (7) is connected to the driving rod (3).

4. A punching machine feeding and positioning mechanism according to claim 3, characterized in that: The rotating component includes a second limit disk (9) and a rotating piece (10) sequentially installed on the outer wall of the right side of the lead screw (8) from left to right. A number of concave arcs are circumferentially and equidistantly arranged on the outer wall of the second limit disk (9), and the radian of the concave arcs on the outer wall of the second limit disk (9) is adapted to the radian of the outer wall of the first limit disk (4). A number of support rods are circumferentially and equidistantly arranged on the side wall of the rotating piece (10), and the拨动 pin (6) is rotatably embedded in the gap between the support rods arranged on the outer walls of two adjacent rotating pieces (10).

5. A punching machine feeding and positioning mechanism according to claim 4, characterized in that: A number of optical bars (12) are installed horizontally on the inner wall of the base (2), and the moving seat (11) is slidably sleeved on the outer wall of the optical bars (12).

6. A punching machine feeding and positioning mechanism according to claim 5, characterized in that: The positioning component includes a fixed seat (13) installed on the upper surface of the moving seat (11). The fixed seat (13) is provided with a through groove from left to right. An installation seat (14) is installed on the front side of the outer wall of the fixed seat (13). A cylinder (15) is installed on the top of the installation seat (14), and the output end of the cylinder (15) penetrates backward through the outer wall of the fixed seat (13). A positioning plate (16) is vertically installed at the output end of the cylinder (15), and the front and rear side walls of the workpiece (17) are respectively in contact with the rear side of the outer wall of the positioning plate (16) and the inner side wall of the driving rod (3).

7. A punching machine feeding and positioning mechanism according to claim 6, characterized in that: The cross-sectional shape of the fixed seat (13) is set as a "凵" shape.

8. A punch feeding and positioning mechanism according to claim 7, characterized in that: A fence (18) is vertically installed on the upper surface of the workbench (1) of the perforating machine. The fence (18) is composed of plates perpendicular to the upper surface of the workbench (1) connected end to end, and the fence (18) surrounds the outside of the intermittent rotation mechanism and the positioning component.

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