Mechanical stamping device

Abstract

The utility model belongs to the technical field of punching machines, and particularly relates to a mechanical punching device. According to the technology, a punching machine is included, and a rotating platform assembly is arranged in a punching area of the punching machine; the rotating platform assembly comprises a supporting seat, a rotating disc is arranged at the top of the supporting seat, and a servo motor is mounted at the bottom of the rotating disc; at least three sets of clamping assemblies distributed in a circumferential mode are installed on the rotating disc. A pushing assembly for horizontally pushing the plates to the clamping assembly leftwards is arranged on the right side of the rotating platform assembly and comprises an electric push rod. The electric push rod pushes a plate to be machined leftwards to the clamping assembly to be clamped, then the rotary disc is rotated, and the plate is rotated to a punching area of the punching machine to be punched. After punching is finished, the rotary disc continues to be rotated to the discharging area for discharging, manual carrying is not needed in the whole process, labor intensity is reduced, efficiency is improved, manual punching operation below the punching machine is not needed, and mechanical damage of a punch of the punching machine to people is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of punching machines, in particular to a mechanical punching device. Background Art

[0002] Sheet punching is a type of stamping process, which means using a punch or die to apply pressure to the sheet to make it penetrate and form a hole or shape on the sheet. Currently, many small sheets that need to be punched in batches are manually positioned and clamped before punching on a punching machine. Each time a piece is completed, a new sheet needs to be re-clamped and positioned. For batch punching of a large number of sheets, this manual positioning and punching method is very repetitive and inefficient. More importantly, the clamping of the sheet is completed near the punch, which can easily cause serious harm to personnel if not handled with caution. Utility Model Content

[0003] The utility model aims to provide a mechanical punching device which can automatically clamp, punch and unload transported plates.

[0004] A mechanical punching device includes a punching machine for punching holes in a sheet material, wherein the punching area of ​​the punching machine is provided with a rotating platform assembly for rotating the sheet material to the punching point;

[0005] The rotating platform assembly includes a support seat, a rotating disc is arranged on the top of the support seat, and a servo motor for driving the rotating disc to rotate is installed at the bottom of the rotating disc; at least three sets of clamping assemblies distributed in a circle are installed on the rotating disc;

[0006] A pushing component for horizontally pushing the plate to the left to the clamping component is arranged on the right side of the rotating platform component, and the pushing component includes an electric push rod.

[0007] Furthermore, the clamping assembly includes a horizontally arranged bottom plate, a groove communicating left and right is opened on the top of the bottom plate, two clamping plates for clamping the plate front and back are arranged in the groove, the top of the clamping plate is located above the groove, a first closed-loop screw stepper motor is installed on the front side wall of the groove, the clamping plates are all installed on the rotating screw of the first closed-loop screw stepper motor, and the clamping plates include a first clamping plate and a second clamping plate from back to front;

[0008] A horizontally arranged support plate is installed on the top of the bottom plate, and first through holes for the support plate to pass through independently are provided on the clamping plates.

[0009] Furthermore, first linear guide rails are provided at the left and right ends of the inner side of the groove, the left end of the clamping plate is independently installed on the first linear guide rail on the left side, and the right end of the clamping plate is independently installed on the first linear guide rail on the right side.

[0010] Furthermore, a second linear guide is laterally installed on the rear side portion of the upper surface of the support plate, and a second closed-loop screw stepper motor is installed on the front side portion, the screw of the second closed-loop screw stepper motor is arranged laterally, and a third clamping plate is arranged between the second closed-loop screw stepper motor and the second linear guide, the front end of the third clamping plate is installed on the screw of the second closed-loop screw stepper motor, and the rear end is independently installed on the second linear guide;

[0011] The clamping plates are all provided with second through holes for the third clamping plate to pass through independently.

[0012] Furthermore, the power output end of the servo motor is connected to a reducer, the power input end of the reducer is connected to the servo motor, the power output end of the reducer is connected to a transmission shaft, one end of the transmission shaft is connected to the reducer, and the other end is connected to the rotating disc.

[0013] Furthermore, a support table is provided at the bottom of the electric push rod, the electric push rod is installed on the right side of the support table, and a conveyor belt placement groove is provided on the support table on the left side of the electric push rod.

[0014] Furthermore, a motor fixing plate for mounting a second closed-loop screw stepping motor is installed on the bottom plate.

[0015] Furthermore, a storage box is provided on one side of the rotating platform assembly.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The electric push rod pushes the plate to be processed to the left to the clamping assembly for clamping, and then rotates the rotating disc to rotate the plate to the punching area of ​​the punch press for punching. After the punching is completed, the rotating disc continues to rotate to the unloading area for unloading. The whole process does not require manual handling, which reduces labor intensity and improves efficiency. There is no need to manually operate the punching under the punch press, which avoids mechanical damage to people by the punch of the punch press. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 is a stereogram of the clamping assembly;

[0021] Figure 3 It is the front view of the clamping assembly;

[0022] Figure 4 yes Figure 3 Cross-sectional view along AA direction;

[0023] Figure 5 is a top view of the base plate;

[0024] Figure 6 It is the left view of the base plate;

[0025] Figure 7 is a top view of the support plate;

[0026] Figure 8 is a top view of the first splint;

[0027] Fig. 9 is a top view of the second splint;

[0028] Fig.10 is a right side view of the first splint;

[0029] Fig.11 is the left side view of the second splint;

[0030] Fig.12 is the front view of the third splint;

[0031] Fig.13 is a top view of the third splint;

[0032] Fig.14 is the front view of the rotating platform assembly;

[0033] Fig.15 is a top view of the rotating platform assembly;

[0034] Fig.16 is a perspective view of a rotating platform assembly;

[0035] Fig.17 It is a three-dimensional diagram of the support seat;

[0036] Fig.18 A stereogram of the push assembly;

[0037] The names of the components in the figure are: 1. Punch; 2. Clamping assembly; 2.1. Base plate; 2.2. Support plate; 2.3. Second linear guide; 2.4. First clamping plate; 2.5. Second clamping plate; 2.6. Third clamping plate; 2.7. Second closed-loop screw stepper motor; 2.8. First closed-loop screw stepper motor; 2.9. Motor fixing plate; 2.10. First linear guide; 3. Rotating platform assembly; 3.1. Support seat; 3.2. Servo motor; 3.3. Reducer; 3.4. Drive shaft; 3.5. Rotating disc; 4. Pushing assembly; 4.1. Support table; 4.1.1. Conveyor belt placement slot; 4.2. Electric push rod; 5. Storage box. DETAILED DESCRIPTION

[0038] The utility model is further described in detail below with reference to the accompanying drawings.

[0039] Example

[0040] This embodiment uses the following materials:

[0041] Prepare a vertical punch press as punch press 1.

[0042] Prepare 40Cr as raw material and form it into bottom plate 2.1 by casting. The bottom plate 2.1 is in the shape of a "convex" plate, with equal-length strip-shaped protrusions in the middle and on both sides, and three through holes on the side as mounting holes. Drill a through hole in the lower middle position as a waste discharge hole.

[0043] Prepare 40Cr plate as raw material, and process it into support plate 2.2 through cutting and milling. Support plate 2.2 is in the shape of a square plate connected to an arched plate, and a long through groove is milled near the arc of the arch. A through hole is drilled on the middle line as a hole for discharging waste. The position of the through hole is determined according to the position of the punch of the punch press 1 after installation, so that waste can be discharged through the through hole.

[0044] The 40Cr plate is used as the raw material and is processed into the first clamping plate 2.4 and the second clamping plate 2.5 by milling. The first clamping plate 2.4 is in an "E" shape, with two strip-shaped through grooves in the vertical direction, and three through holes are processed on the three protrusions. There is a bulge on the right side of the first clamping plate 2.4 near the upper edge line. The second clamping plate 2.5 is a mirror image of the first clamping plate 2.4.

[0045] The 40Cr plate is used as the raw material, and is cut and milled to form the third clamping plate 2.6. The third clamping plate 2.6 is a long strip with wide sides and narrow in the middle, and two through holes are opened at the positions of the wide sides.

[0046] Hot-rolled steel plates are used as raw materials, rolled and welded into a cylinder by a plate rolling machine, and the circular surfaces are welded inside and at both ends of the cylinder to seal, and a hole is opened in the center of the circle of one end surface, and a certain thickness is milled around the hole to form a flange, and the surface of the flange must be smooth. Strip heat dissipation holes are evenly distributed in the vertical direction on the side of the cylinder. An opening is cut out of the cylinder to form a support seat 3.1, and its height is determined according to the height of the working surface of the punch 1.

[0047] A 6061 aluminum alloy plate is used as a raw material, and a disc is cut out to be the rotating disc 3.5. An axial hole is opened at the center of the rotating disc 3.5.

[0048] Prepare a table with footing, the height of which is determined according to the installation height of the support plate 2.2. Mill an arched groove and a rectangular groove on the desktop to form a support table 4.1, wherein the rectangular groove is used as a conveyor belt placement groove 4.1.1.

[0049] Prepare a box as a storage box 5.

[0050] Two closed-loop control screw stepper motors are prepared, namely the second closed-loop screw stepper motor 2.7 and the first closed-loop screw stepper motor 2.8. The second closed-loop screw stepper motor 2.7 and the first closed-loop screw stepper motor 2.8 are known technologies, including a stepper motor body, a screw, a nut, and a screw fixing seat, wherein the screws of the second closed-loop screw stepper motor 2.7 and the first closed-loop screw stepper motor 2.8 are bidirectional screws.

[0051] A linear guide is prepared as the second linear guide 2.3 according to the size of the support plate 2.2. Two linear guides are prepared as the first linear guide 2.10 according to the width of the base plate 2.1. The second linear guide 2.3 and the first linear guide 2.10 are existing known technologies, which include a slide rail, a slider and a mounting seat.

[0052] Prepare a servo motor as Servo Motor 3.2.

[0053] Prepare a reducer as reducer 3.3.

[0054] Prepare a shaft as a transmission shaft 3.4.

[0055] Prepare an electric linear actuator as electric linear actuator 4.2.

[0056] Prepare some bolts.

[0057] The above materials are assembled as follows:

[0058] 1: Assemble the clamping components 2

[0059] 1. Install the slider of the first linear guide 2.10 and the nut of the first closed-loop screw stepper motor 2.8 into the through holes of the first clamping plate 2.4 and the second clamping plate 2.5 and fix them.

[0060] 2. Insert the support plate 2.2 into the lower through grooves of the first clamping plate 2.4 and the second clamping plate 2.5, and fix the support plate 2.2 to the bottom plate 2.1 by bolts.

[0061] 3. Place the screw of the first closed-loop screw stepper motor 2.8 and the first linear guide rail 2.10 in the first clamping plate 2.4 and the second clamping plate 2.5, and fix the screw and the rail axially, and fix the motor of the first closed-loop screw stepper motor 2.8. Pay attention to ensure that the first clamping plate 2.4 and the second clamping plate 2.5 are symmetrically distributed on both sides during installation.

[0062] 4. Install the motor fixing plate 2.9 on the left side of the front side of the base plate 2.1, insert the third clamping plate 2.6 into the through slots on the upper side of the first clamping plate 2.4 and the second clamping plate 2.5, and install the slider of the second linear guide 2.3 in the through hole on the left side of the third clamping plate 2.6, and install the nut of the second closed-loop screw stepper motor 2.7 in the through hole on the right side. Install the fixing seat of the second linear guide 2.3 and the second closed-loop screw stepper motor 2.7 on the support plate 2.2, which are coaxial with the slider and the nut respectively. Then install the slide rail of the second linear guide 2.3 and the screw of the second closed-loop screw stepper motor 2.7 respectively, and fix the motor of the second closed-loop screw stepper motor 2.7 on the motor fixing plate 2.9.

[0063] 2: Assemble the rotating platform assembly 3

[0064] 1. Place the support base 3.1 upright, insert the transmission shaft 3.4 into the rotating disc 3.5 and align the end faces of the two, and connect the transmission shaft 3.4 and the rotating disc 3.5.

[0065] 2. Install the rotating disc 3.5 onto the flange of the center hole at the top of the support seat 3.1, install the servo motor 3.2 and the reducer 3.3, connect the input end of the reducer 3.3 to the servo motor 3.2, and connect the output end to the transmission shaft 3.4.

[0066] Three: Assemble push component 4

[0067] The electric push rod 4.2 is fixed on the supporting table 4.1 by bolt connection.

[0068] 4: Overall assembly of a mechanical stamping device

[0069] 1. Connect the three clamping components 2 by bolts and fix them on the rotating disk 3.5 of the rotating platform component 3 in a circumferential distribution.

[0070] 2. Insert the notch of the rotating platform assembly 3 into the punch press 1 so that the upper surface of the rotating platform assembly 3 is located in the working area of ​​the punch press 1. And make one of the clamping assemblies 2 be located in the middle position of the working surface directly below the punch of the punch press 1.

[0071] 3. Make the bottom and side surfaces of the arcuate groove of the support table 4.1 in the pushing assembly 4 fit with the bottom and side surfaces of the arcuate protruding surface of a support plate 2.2 respectively, and fix the legs of the support table 4.1 to the ground through anchor bolts.

[0072] 4. Place a storage box 5 on one side of the rotating platform assembly 3 to receive the punched plates.

[0073] Five: Set the control of the first closed-loop screw stepper motor 2.8 and the servo motor 3.2.

[0074] 1. Set the servo motor 3.2 to rotate 120 degrees each time and stay for a certain time after each rotation. The stay time is slightly longer than the time it takes for the punch press 1 to complete the punching.

[0075] 2. Set the first closed-loop screw stepper motor 2.8. One movement cycle of the first closed-loop screw stepper motor 2.8 is divided into four steps. The first step: the first closed-loop screw stepper motor 2.8 does not move. At this time, the first clamping plate 2.4 and the second clamping plate 2.5 are symmetrically distributed at the outermost side. The second step: the motor rotates forward, and the screw drives the first clamping plate 2.4 and the second clamping plate 2.5 to move inward. After touching the plate, the induction torque changes. After the torque reaches a certain value, the motor stops rotating. Maintain this state for a period of time, that is, the time interval for the servo motor 3.2 to complete the rotation of 120 degrees. The third step: Maintain the last state of the second step for a certain period of time (the time interval is the time interval for the servo motor 3.2 to complete the rotation of 120 degrees). The fourth step: the first closed-loop screw stepper motor 2.8 reverses, loosens the plate, and stops rotating after the first clamping plate 2.4 and the second clamping plate 2.5 are at the outermost side. The above four steps constitute a cycle. The three first closed-loop screw stepper motors 2.8 have the same cycle, but the number of steps in the initial state is different, that is, the initial state of the first closed-loop screw stepper motor 2.8 of the clamping assembly 2 connected to the pushing assembly 4 is the above-mentioned first step, and the second step in the cycle is completed at this position; the initial state of the first closed-loop screw stepper motor 2.8 of the clamping assembly 2 on the working surface of the punching machine 1 is the above-mentioned third step; the initial state of the first closed-loop screw stepper motor 2.8 of the clamping assembly 2 above the storage box 5 is the above-mentioned fourth step.

[0076] 6. Set the second closed-loop screw stepper motor 2.7.

[0077] One movement cycle of the second closed-loop screw stepper motor 2.7 is divided into four steps. Step 1: The second closed-loop screw stepper motor 2.7 does not move, and the third clamping plate 2.6 is at the innermost side, that is, the side close to the axis of the rotating platform assembly 3. Step 2: After the first closed-loop screw stepper motor 2.8 rotates forward, the second closed-loop screw stepper motor 2.7 also rotates forward, driving the third clamping plate 2.6 to approach the plate, and senses the change in torque. After the torque reaches a certain value, the motor stops rotating and maintains this state for a period of time, that is, the time for the servo motor 3.2 to complete a 120-degree rotation. Step 3: Maintain the last state of the second step for a certain period of time, which is the time for the servo motor 3.2 to complete a 120-degree rotation. Step 4: The second closed-loop screw stepper motor 2.7 rotates forward, causing the third clamping plate 2.6 to reach the outermost side and then reverse back to the innermost side. The cycles of the three second closed-loop screw stepper motors 2.7 are the same, but the initial states of their respective cycles are different. The initial state of the second closed-loop screw stepper motor 2.7 in the clamping assembly 2 connected to the pushing assembly 4 is the first step mentioned above, and the second step in the cycle is completed at this position. The initial state of the second closed-loop screw stepper motor 2.7 in the clamping assembly 2 on the working surface of the punch press 1 is the third step mentioned above. The initial state of the second closed-loop screw stepper motor 2.7 in the clamping assembly 2 above the storage box 5 is the fourth step mentioned above.

[0078] 7. Set the electric push rod to 4.2 extension and retraction frequency.

[0079] The time interval for the push rod of the electric push rod 4.2 to move from extension to retraction and then to extension is the time interval for the servo motor 3.2 to complete a rotation of 120 degrees.

[0080] Instructions for use are as follows:

[0081] Place the conveyor belt into the conveyor belt placement slot 4.1.1 so that the surface of the conveyor belt is flush with the upper surface of the support table 4.1. Turn on the power, and the electric push rod 4.2 repeatedly pushes the plate on the conveyor belt into the clamping assembly 2 to complete the clamping and feeding. After the punching is completed, it is automatically unloaded. The servo motor 3.2, the second closed-loop screw stepper motor 2.7, the first closed-loop screw stepper motor 2.8 and the electric push rod 4.2 repeatedly complete the preset cycle motion, thereby continuously clamping the plate and feeding it to the punching machine 1 to complete the punching. Then, the plate is released above the storage box 5 and the third clamping plate 2.6 pushes the plate outward to complete the automatic unloading.

[0082] The plate punching device with automatic clamping and feeding is suitable for batch production. It no longer needs manual repeated clamping of plates, thus reducing labor intensity and improving efficiency. It also no longer needs manual punching operation under the punch press, thus avoiding mechanical damage to people caused by the punch of the punch press.

[0083] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A mechanical punching device, comprising a punching machine (1) for punching holes in a sheet material, characterized in that: The punching area of ​​the punching machine (1) is provided with a rotating platform assembly (3) for rotating the plate to the punching point; The rotating platform assembly (3) comprises a support seat (3.1), a rotating disc (3.5) is provided on the top of the support seat (3.1), and a servo motor (3.2) for driving the rotating disc (3.5) to rotate is installed on the bottom of the rotating disc (3.5); at least three sets of clamping assemblies (2) distributed in a circumference are installed on the rotating disc (3.5); A pushing component (4) for pushing the plate horizontally to the left to the clamping component (2) is provided on the right side of the rotating platform component (3), and the pushing component (4) comprises an electric push rod (4.2).

2. The mechanical punching device according to claim 1, characterized in that: The clamping assembly (2) comprises a horizontally arranged bottom plate (2.1), the top of the bottom plate (2.1) is provided with a groove communicating with each other on the left and right, two clamping plates for clamping the plate in front and back are arranged in the groove, the top of the clamping plate is located above the groove, a first closed-loop screw stepping motor (2.8) is installed on the front side wall of the groove, the clamping plates are all installed on the rotating screw of the first closed-loop screw stepping motor (2.8), and the clamping plates include a first clamping plate (2.4) and a second clamping plate (2.5) from back to front; A horizontally arranged support plate (2.2) is installed on the top of the bottom plate (2.1), and first through holes for the support plate (2.2) to pass independently are provided on the clamping plates.

3. The mechanical punching device according to claim 2, characterized in that: First linear guide rails (2.10) are provided at the left and right ends of the inner side of the groove, the left end of the clamping plate is independently mounted on the first linear guide rail (2.10) on the left side, and the right end of the clamping plate is independently mounted on the first linear guide rail (2.10) on the right side.

4. The mechanical punching device according to claim 3, characterized in that: A second linear guide rail (2.3) is transversely mounted on the rear side portion of the upper surface of the support plate (2.2), and a second closed-loop screw-rod stepper motor (2.7) is mounted on the front side portion; the screw of the second closed-loop screw-rod stepper motor (2.7) is arranged transversely; a third clamping plate (2.6) is arranged between the second closed-loop screw-rod stepper motor (2.7) and the second linear guide rail (2.3); the front end of the third clamping plate (2.6) is mounted on the screw of the second closed-loop screw-rod stepper motor (2.7), and the rear end is independently mounted on the second linear guide rail (2.3); The clamping plates are each provided with a second through hole for the third clamping plate (2.6) to pass through independently.

5. The mechanical punching device according to claim 1, characterized in that: The power output end of the servo motor (3.2) is connected to a reducer (3.3), the power input end of the reducer (3.3) is connected to the servo motor (3.2), the power output end of the reducer (3.3) is connected to a transmission shaft (3.4), one end of the transmission shaft (3.4) is connected to the reducer (3.3), and the other end is connected to the rotating disc (3.5).

6. The mechanical punching device according to claim 1, characterized in that: A support table (4.1) is provided at the bottom of the electric push rod (4.2), the electric push rod (4.2) is installed on the right side of the support table (4.1), and a conveyor belt placement groove (4.1.1) is provided on the support table (4.1) on the left side of the electric push rod (4.2).

7. The mechanical punching device according to claim 4, characterized in that: A motor fixing plate (2.9) for mounting a second closed-loop screw-type stepping motor (2.7) is mounted on the base plate (2.1).

8. The mechanical punching device according to claim 1, characterized in that: A storage box (5) is provided on one side of the rotating platform assembly (3).

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