Material positioning and feeding structure of numerical control copying machine

Abstract

The utility model relates to a numerical control copying machine material positioning feeding structure, including the machine table, be provided with the feeding channel for accommodating a plurality of vertical stacking board on the machine table, the below of feeding channel is provided with the feeding seat board for holding a plurality of vertical stacking board, be provided with the pre -pushing clamping assembly for the board of being located the most below and pushing forward and clamping on the feeding seat board, and the feeding seat board is driven by the feeding movement component and moves forward to the board of being located the most below and is conveyed forward. The utility model discloses reasonable structure design can convey the board in feeding channel to the compacting structure on the side of profile cutter after positioning one by one forward, need not manual placement and positioning, reduce the operation time consumption, and then improve the overall production efficiency.

Description

Technical Field

[0001] This utility model relates to a material positioning and feeding structure for a CNC profiling machine. Background Technology

[0002] Some irregularly shaped boards (such as cutting boards, washboards, etc.) are processed using CNC profiling machines. However, traditional old-fashioned CNC profiling machines often require manual placement of the boards one by one on the clamping structure next to the profiling cutter for positioning. After the profiling cutter finishes processing, the boards are then removed manually. This manual placement and positioning method is not only time-consuming but also inefficient, affecting overall production efficiency. Utility Model Content

[0003] This utility model addresses the problems existing in the prior art by providing a material positioning and feeding structure for a CNC profiling machine.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a material positioning and feeding structure for a CNC profiling machine, including a machine base, wherein the machine base is provided with a feeding channel for accommodating several vertically stacked plates, and a feeding seat plate is provided below the feeding channel for supporting several vertically stacked plates. The feeding seat plate is provided with a pre-push clamping component for pushing and clamping the bottommost plate forward. The feeding seat plate is driven forward by a feeding moving component to convey the bottommost plate forward.

[0005] Furthermore, a feeding channel is formed between the top of the feeding seat plate and the bottom of the front end of the feeding channel to facilitate the passage of a single piece of board; a liftable baffle assembly is provided on the front side of the feeding channel, which is used to abut against the front end face of the board pushed forward by the pre-push clamping assembly.

[0006] Furthermore, the liftable material stop assembly includes a vertical material stop bar, which is driven downward by a material stop cylinder located above it to move directly in front of the feeding seat plate, so as to facilitate contact with the front end face of the plate being pushed forward by the pre-push clamping assembly.

[0007] Furthermore, the pre-push clamping assembly includes a pre-push moving plate horizontally disposed above the feeding seat plate. The pre-push moving plate is driven to move back and forth by the pre-push moving assembly disposed on the feeding seat plate. The front end face of the pre-push moving plate is provided with a pair of left and right distributed push blocks for contacting the rear end face of the bottommost plate. The front side of the pair of push blocks is provided with a clamping assembly for clamping the bottommost plate from the left and right directions.

[0008] Furthermore, the clamping assembly includes a pair of longitudinal support plates distributed on the left and right sides of the feeding seat plate. The rear ends of the pair of longitudinal support plates are connected to the top of the pre-push moving plate by fasteners. Each longitudinal support plate has an L-shaped clamping block on its inner side. Each L-shaped clamping block is driven to move left and right by a clamping cylinder that is horizontally installed on the longitudinal support plate.

[0009] Furthermore, a pair of longitudinally distributed push rods are fixed to the rear end face of the pre-push moving plate. When the bottommost plate is pushed forward, the pair of longitudinally distributed push rods support the remaining plate in the feeding channel.

[0010] Furthermore, the cross-section of the feeding channel is rectangular, and both the length and width of the feeding channel can be adjusted.

[0011] Furthermore, the feeding channel includes a front side plate, a rear side plate, a left side plate, and a right side plate. The front side plate is horizontally arranged, and fixed guide shafts and movable guide shafts are vertically arranged at its left and right ends, respectively. A first slider is fixed to the front end of the movable guide shaft. The first slider is slidably engaged with a first transverse groove at the right end of the front side plate. A second slider is slidably connected to the movable guide shaft behind the first slider. The second slider is slidably engaged with a second transverse groove at the top right end of the horizontally arranged rear side plate. The left end of the rear side plate is slidably engaged with the fixed guide shaft via a third slider. The left side plate and the right side plate are a pair and are distributed in a front-rear manner. The left side plate at the front end is fixedly connected to the fixed guide shaft, and the left side plate at the rear end is fixedly connected to the rear side plate. The right side plate at the front end is fixedly mounted on the movable guide shaft via a guide shaft support, and the right side plate at the rear end is fixedly connected to the second slider.

[0012] Furthermore, the first, second, and third sliders are all equipped with sliding locking handles; the left and rear side plates are both L-shaped, and the vertical edge of the left side plate, the vertical edge of the rear side plate, the front side plate, and the right side plate form a feeding channel; the second transverse chute is set on the horizontal edge of the rear side plate, and a transverse support rod is arranged parallel to the rear of the rear side plate; the rear end of the fixed guide shaft is fixedly connected to the transverse support rod, and the rear end of the movable guide shaft is slidably connected to the transverse support rod.

[0013] Furthermore, the feeding base plate is slidably engaged with a pair of feeding guide shafts longitudinally located below it; the feeding moving assembly includes a feeding rack, a feeding gear, and a feeding motor. The feeding rack is longitudinally installed at the right end of the feeding base plate, and the feeding motor is installed on the machine base. The output shaft of the feeding motor is connected to the feeding gear, and the feeding gear meshes with the feeding rack. When the feeding gear rotates, it drives the feeding rack and the feeding base plate to move in the forward and backward directions.

[0014] Compared with the prior art, the present invention has the following advantages: The present invention has a reasonable structural design, which can position the plates in the feeding channel one by one and then transport them forward to the pressing structure next to the contour cutter. There is no need for manual placement and positioning, which reduces operation time and improves overall production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention installed on a CNC copying machine. Figure 1 ; Figure 2 yes Figure 1 A top-view structural diagram; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention installed on a CNC copying machine. Figure 2 ; Figure 4 This is a three-dimensional structural diagram of an embodiment of the present utility model. Figure 1 ; Figure 5 This is a three-dimensional structural diagram of an embodiment of the present utility model. Figure 2 ; Figure 6 This is a three-dimensional structural diagram of an embodiment of the present utility model. Figure 3 ; Figure 7 This is a partially enlarged schematic diagram of the feeding channel in an embodiment of this utility model; Figure 8 This is a schematic diagram of the cooperation structure between the embodiment of this utility model and the pressing mechanism; Figure 9 This is a three-dimensional structural diagram of the machine tool in an embodiment of this utility model.

[0016] In the picture: 201-Machine base; 202-Feeding channel; 203-Feeding seat plate; 204-Pre-push clamping assembly; 205-Feeding moving assembly; 206-Liftable stop assembly; 207-Vertical stop bar; 208-Stop cylinder; 209-Pre-push moving plate; 210-Pre-push moving assembly; 211-Push block; 212-Longitudinal support plate; 213-L-shaped clamping block; 214-Clamping cylinder; 215-Mounting hole; 216-Longitudinal push rod; 217-Longitudinal slot; 218-Pre-push moving seat; 219-Rodless cylinder; 220 - Pre-push longitudinal guide rod; 221- Front side plate; 222- Rear side plate; 223- Left side plate; 224- Right side plate; 225- Fixed guide shaft; 226- Movable guide shaft; 227- First slider; 228- First transverse slide groove; 229- Second slider; 230- Second transverse slide groove; 231- Third slider; 232- Guide shaft support; 233- Sliding locking handle; 234- Transverse support rod; 235- Feeding guide shaft; 236- Feeding rack; 237- Feeding gear; 238- Feeding motor; 300- Pressing structure. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] like Figures 1-9As shown, this utility model discloses a material positioning and feeding structure for a CNC copying machine. The material positioning and feeding structure corresponds in the front-to-back direction to a clamping structure located beside the copying cutter and pressing the sheet metal from both top and bottom. The material positioning and feeding structure includes a machine base 201. A feeding channel 202 for accommodating several vertically stacked sheets is vertically arranged on the machine base 201. The top and bottom of the feeding channel 202 are open. A feeding seat plate 203 for supporting the several vertically stacked sheets is horizontally arranged below the feeding channel 202. The feeding plate 203 is equipped with a pre-push clamping component 204 for pushing the bottommost plate forward and clamping it from the left and right. The pre-push clamping component first pushes the bottommost plate forward and clamps it from the left and right to position the plate. The feeding plate 203 is driven forward by the feeding moving component 205 to position the bottommost plate and then convey it forward to the clamping structure 300 of the CNC copying machine. That is, after the plate is positioned, it is directly conveyed to the clamping structure next to the copying tool of the CNC copying machine without manual feeding and positioning.

[0020] In this embodiment, a feeding channel is formed between the top of the feeding seat plate 203 and the bottom of the front end of the feeding channel 202 to facilitate the forward passage of a single board; a liftable baffle assembly 206 is provided on the front side of the feeding channel 202. The liftable baffle assembly 206 is used to abut against the front end face of the board pushed forward by the pre-push clamping assembly 204. That is, the pre-push clamping assembly pushes the board located at the bottom forward a certain distance, and the front end face of the board contacts the liftable baffle assembly to achieve front-back positioning. Then the pre-push clamping assembly clamps the board from the left and right directions to complete the positioning of the board.

[0021] In this embodiment, the liftable baffle assembly 206 includes a vertical baffle rod 207. The vertical baffle rod 207 is driven downward by a baffle cylinder 208 located above it to move directly in front of the feeding seat plate, so as to facilitate contact with the front end face of the plate being pushed forward by the pre-push clamping assembly. Before feeding, the vertical baffle rod moves downward to directly in front of the plate under the drive of the baffle cylinder; after the plate is positioned (clamped from the left and right directions), the vertical baffle rod returns to its original position upward to avoid obstructing the forward conveying of subsequent plates.

[0022] In this embodiment, the pre-push clamping assembly 204 includes a pre-push moving plate 209 horizontally disposed above the feeding seat plate 203. The pre-push moving plate 209 is driven to move back and forth by the pre-push moving assembly 210 disposed on the feeding seat plate 203. The front end face of the pre-push moving plate 209 is provided with a pair of left and right distributed push blocks 211 for contacting the rear end face of the bottommost plate. The front side of the pair of push blocks 211 is provided with a clamping assembly for clamping the bottommost plate from the left and right directions. Specifically, the clamping assembly includes a pair of longitudinal support plates 212 distributed on the left and right sides of the feeding seat plate 203. The rear end of the pair of longitudinal support plates 212 is connected to the top of the pre-push moving plate 209 by fasteners. Each longitudinal support plate 212 has an L-shaped clamping block 213 disposed on its inner side. Each L-shaped clamping block 213 is driven to move left and right by a clamping cylinder 214 horizontally mounted on the longitudinal support plate 212. During operation: (1) In the initial state, the pre-push moving plate 209 is located behind the feeding channel 202, and a pair of longitudinal support plates 212 are distributed on the left and right sides below the feeding channel 202; when several plates stacked vertically are placed in the feeding channel 202, the feeding seat plate 203 supports several plates, and at this time a pair of push blocks 211 are behind the plates; (2) Plate positioning: the pre-push moving component 210 drives the pre-push moving plate 209 to move forward a certain distance, and the pre-push moving plate 209 pushes the plate at the bottom to move forward until it abuts against the vertical stop bar 207 through a pair of push blocks 211. Then, the clamping cylinders 214 on the pair of longitudinal support plates 212 extend towards each other and clamp. The L-shaped clamping block 213 connected to the cylinder 214 clamps the plate from the left and right sides to achieve plate positioning; (3) Pre-push: The plate is kept clamped, and then the pre-push moving component 210 drives the pre-push moving plate 209 to move the plate forward, so that the plate is in front of the feeding seat plate 203 (in a front-back misalignment state); (4) Feeding: The feeding moving component 205 drives the feeding seat plate 203 to move forward, and the feeding seat plate 203 drives the plate to move forward synchronously until the plate is below the contour cutter, so that the plate is on the pressing structure 300; (5) The clamping cylinder 214 drives the L-shaped clamping block 213 to retract, release the plate, the feeding seat plate resets backward, and the pre-push moving plate resets backward.

[0023] In this embodiment, the top left and right ends of the pre-push movable plate 209 are each provided with a row of mounting holes 215 distributed laterally. The mounting holes are used to cooperate with fasteners to adjust the installation position of the longitudinal support plate 212 laterally, thereby adjusting the spacing between a pair of longitudinal support plates and adapting to clamping plates of different lengths.

[0024] In this embodiment, a pair of longitudinally pushing rods 216 distributed on the left and right are fixed to the rear end face of the pre-pushing moving plate 209. When the plate at the bottom is pushed forward, the pair of longitudinally pushing rods 216 support the remaining plate in the feeding channel 202.

[0025] In this embodiment, longitudinal slots 217 are respectively provided at the left and right ends of the feeding seat plate 203; the pre-push moving assembly 210 includes a pre-push moving seat 218 disposed below the feeding seat plate 203. The pre-push moving seat 218 is driven to move back and forth by a rodless cylinder 219 longitudinally installed at the bottom of the feeding seat plate 203. The top left and right ends of the pre-push moving seat 218 pass through the corresponding longitudinal slots 217 and are connected to the pre-push moving plate 209, so that the pre-push moving plate and the pre-push moving seat form a whole, and the two move back and forth synchronously. Furthermore, pre-push longitudinal guide rods 220 are arranged parallel to each other on the left and right sides of the rodless cylinder, and the pre-push moving seat 218 slides with the pre-push longitudinal guide rods 220.

[0026] In this embodiment, the feeding channel 202 has a rectangular cross-section. Both the length and width of the feeding channel 202 are adjustable to accommodate different sizes of boards, improving usability. Specifically, the feeding channel 202 includes a front side plate 221, a rear side plate 222, a left side plate 223, and a right side plate 224. The front side plate 221 is horizontally arranged, with a fixed guide shaft 225 and a movable guide shaft 226 longitudinally arranged at its left and right ends, respectively. A first slider 227 is fixed to the front end of the movable guide shaft 226. The first slider 227 slides in conjunction with a first transverse groove 228 at the right end of the front side plate 221. A second slider 229 is slidably connected to the movable guide shaft 226 behind the first slider 227. The second slider 229 slides in conjunction with a second transverse groove 230 at the top right end of the horizontally arranged rear side plate 222. The left end of the rear side plate 222 slides in conjunction with the fixed guide shaft 225 via a third slider 231. The left side plate 223 and the right side plate 224 are both... The two plates are arranged in a front-to-back configuration. The left side plate 223 at the front end is fixedly connected to the fixed guide shaft 225. The left side plate 223 at the rear end is fixedly connected to the rear side plate 222 and can move back and forth with the rear side plate. That is, the distance between the two left side plates is adjustable, and the distance between the front and rear side plates is adjustable. The right side plate 224 at the front end is fixedly mounted on the movable guide shaft 226 through the guide shaft support 232. The right side plate 224 at the rear end is fixedly connected to the second slider 229. That is, when the movable guide shaft 226 moves left and right, the two right side plates 224 move synchronously with the movable guide shaft 226, so that the distance between the left side plate 223 and the right side plate 224 is adjustable. The right side plate 224 at the rear end can move back and forth with the rear side plate 222, so that the distance between the two right side plates 224 is adjustable.

[0027] In this embodiment, the first slider 227, the second slider 229, and the third slider 231 are all equipped with sliding locking handles 233 for sliding locking after adjustment. It should be noted that sliders with sliding locking handles are existing mature products (such as existing SCS box-type sliders). These handles are connected to the sliders, and by rotating the sliding locking handles, the sliders can be locked in place and cannot be moved. Using sliding locking handles is simple and convenient to operate, requiring no tools and improving the convenience of manual operation.

[0028] In this embodiment, both the left side plate 223 and the rear side plate 222 are L-shaped. The vertical edge of the left side plate 223, the vertical edge of the rear side plate 222, the front side plate 221, and the right side plate 224 form a feeding channel 202. The second transverse chute 230 is disposed on the horizontal edge of the rear side plate 222. A transverse support rod 234 is disposed parallel to the rear of the rear side plate 222. The rear end of the fixed guide shaft 225 is fixedly connected to the transverse support rod 234, and the rear end of the movable guide shaft 226 is slidably connected to the transverse support rod 234. The left and right ends of the transverse support rod are supported on the machine platform. A downwardly protruding limiting protrusion is provided in the middle of the bottom surface of the front side plate. A feeding channel is formed between the bottom of the limiting protrusion and the top of the feeding seat plate to facilitate the passage of a single piece of material.

[0029] In this embodiment, the feeding base plate 203 is slidably engaged with a pair of feeding guide shafts 235 longitudinally disposed below it; the feeding moving assembly includes a feeding rack 236, a feeding gear 237, and a feeding motor 238. The feeding rack 236 is longitudinally installed at the right end of the feeding base plate 203, and the feeding motor 238 is installed on the machine base 201. The output shaft of the feeding motor 238 is connected to the feeding gear 237, and the feeding gear 237 meshes with the feeding rack 236. When the feeding gear rotates, it drives the feeding rack and the feeding base plate to move in the forward and backward directions.

[0030] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0031] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0032] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A material positioning and feeding structure for a CNC contouring machine, characterized in that: The machine includes a machine base with a feeding channel for accommodating several vertically stacked plates. Below the feeding channel is a feeding seat plate for supporting the several vertically stacked plates. The feeding seat plate is equipped with a pre-push clamping assembly for pushing and clamping the bottommost plate forward. The feeding seat plate is driven forward by a feeding moving assembly to convey the bottommost plate forward.

2. The material positioning and feeding structure for a CNC profiling machine according to claim 1, characterized in that: The top of the feeding seat plate and the bottom of the front end of the feeding channel form a feeding channel to facilitate the passage of a single piece of board; the front side of the feeding channel is provided with a liftable baffle assembly, which is used to abut against the front end face of the board pushed forward by the pre-push clamping assembly.

3. The material positioning and feeding structure for a CNC contouring machine according to claim 2, characterized in that: The liftable material stop assembly includes a vertical material stop bar, which is driven by a material stop cylinder located above it to move downward to the front of the feeding seat plate, so as to facilitate contact with the front end face of the plate being pushed forward by the pre-push clamping assembly.

4. A material positioning and feeding structure for a CNC contouring machine according to claim 1 or 2, characterized in that: The pre-push clamping assembly includes a pre-push moving plate horizontally disposed above the feeding seat plate. The pre-push moving plate is driven to move back and forth by the pre-push moving assembly disposed on the feeding seat plate. The front end face of the pre-push moving plate is provided with a pair of left and right distributed push blocks for contacting the rear end face of the bottommost plate. The front side of the pair of push blocks is provided with a clamping assembly for clamping the bottommost plate from the left and right directions.

5. The material positioning and feeding structure for a CNC profiling machine according to claim 4, characterized in that: The clamping assembly includes a pair of longitudinal support plates distributed on the left and right sides of the feeding seat plate. The rear ends of the pair of longitudinal support plates are connected to the top of the pre-push moving plate by fasteners. Each longitudinal support plate has an L-shaped clamping block on its inner side. Each L-shaped clamping block is driven to move left and right by a clamping cylinder that is horizontally installed on the longitudinal support plate.

6. The material positioning and feeding structure for a CNC profiling machine according to claim 4, characterized in that: The rear end face of the pre-push moving plate is fixed with a pair of longitudinal pushing rods distributed on the left and right. When the plate at the bottom is pushed forward, the pair of longitudinal pushing rods support the remaining plate in the feeding channel.

7. The material positioning and feeding structure for a CNC contouring machine according to claim 1, characterized in that: The cross-section of the feeding channel is rectangular, and both the length and width of the feeding channel can be adjusted.

8. The material positioning and feeding structure for a CNC contouring machine according to claim 7, characterized in that: The feeding channel includes a front side plate, a rear side plate, a left side plate, and a right side plate. The front side plate is horizontally arranged, and fixed guide shafts and movable guide shafts are longitudinally arranged at its left and right ends, respectively. A first slider is fixed to the front end of the movable guide shaft. The first slider is slidably engaged with a first transverse groove at the right end of the front side plate. A second slider is slidably connected to the movable guide shaft behind the first slider. The second slider is slidably engaged with a second transverse groove at the top right end of the horizontally arranged rear side plate. The left end of the rear side plate is slidably engaged with the fixed guide shaft via a third slider. The left and right side plates are a pair and are distributed in a front-rear manner. The left side plate at the front end is fixedly connected to the fixed guide shaft, and the left side plate at the rear end is fixedly connected to the rear side plate. The right side plate at the front end is fixedly mounted on the movable guide shaft via a guide shaft support, and the right side plate at the rear end is fixedly connected to the second slider.

9. The material positioning and feeding structure for a CNC contouring machine according to claim 8, characterized in that: The first, second, and third sliders are all equipped with sliding locking handles; the left and rear side plates are both L-shaped, and the vertical edge of the left side plate, the vertical edge of the rear side plate, the front side plate, and the right side plate form a feeding channel; the second transverse chute is set on the horizontal edge of the rear side plate, and a transverse support rod is arranged parallel to the rear of the rear side plate; the rear end of the fixed guide shaft is fixedly connected to the transverse support rod, and the rear end of the movable guide shaft is slidably connected to the transverse support rod.

10. The material positioning and feeding structure for a CNC profiling machine according to claim 1, characterized in that: The feeding base plate is slidably engaged with a pair of feeding guide shafts longitudinally located below it; the feeding moving assembly includes a feeding rack, a feeding gear, and a feeding motor. The feeding rack is longitudinally installed at the right end of the feeding base plate, and the feeding motor is installed on the machine base. The output shaft of the feeding motor is connected to the feeding gear, and the feeding gear meshes with the feeding rack. When the feeding gear rotates, it drives the feeding rack and the feeding base plate to move in the forward and backward directions.

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