Automatic feeding and discharging device of machine tool

Abstract

The utility model belongs to the technical field of machining, and particularly relates to an automatic feeding and discharging device of a machine tool. Disclosed is a machine tool automatic feeding and discharging device. Comprising a feeding table, an elastic clamping carrier, a feeding module and a transfer table, wherein a plurality of workpieces can be stacked in the elastic clamping carrier, and the elastic clamping carrier can be vertically clamped on the feeding table; the feeding module comprises a discharging air cylinder and a carrying module which are arranged on the feeding table; comprising a machine tool spindle and a clamping air cylinder fixedly connected to the machine tool spindle and used for clamping a workpiece, the collecting carrier is arranged on a machine tool table and used for containing the machined workpiece, a feeding table and an elastic clamping carrier are arranged on the outer side of a machine tool shell, and the carrying module carries the workpiece to a transfer table to be positioned. And the machine tool main shaft drives the taking and placing module to clamp the workpiece on the transfer table and place the machined workpiece in the material receiving carrier. The automatic feeding and discharging device can automatically and continuously carry out feeding and discharging and is high in feeding and discharging efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, and in particular relates to an automatic loading and unloading device for a machine tool. Background Art

[0002] See also Fig.10 As shown, it is a strip-shaped metal workpiece 1, which includes a long strip workpiece body 11 and a protrusion 12 integrally formed on one side of the workpiece body. In the process of fine processing of the workpiece 1 after rough processing, a CNC machine tool is required. In the prior art, a processing fixture for clamping the workpiece 1 is often installed on the bed inside the machine tool. The workpiece 1 to be processed is manually taken out from the material tray in turn, placed on the processing fixture and positioned and fixed, and then various tools are driven by the machine tool spindle to fine process the workpiece 1. After the processing is completed, the workpiece 1 is manually retrieved from the material tray. During the loading and unloading process of the entire workpiece 1, there are problems such as high manual fatigue, high labor manufacturing cost and low processing efficiency; in addition, due to the need for frequent manual loading and unloading, the CNC machine tool needs to frequently open the protective door to clamp and remove the workpiece, resulting in the inability to continuously and automatically load and unload and process, thereby wasting a lot of processing time and resulting in low processing efficiency. Although there are robotic arms that can automatically load and unload materials in the prior art, the workpiece 1 is small in size and the internal space of the machine tool is limited, so the workpiece cannot be effectively clamped, making it difficult to complete the loading and unloading process. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, the present application provides an automatic loading and unloading device for machine tools which can automatically and continuously load and unload materials and has high loading and unloading efficiency.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An automatic loading and unloading device for a machine tool comprises a feeding table and also comprises:

[0006] Clip carrier: Multiple workpieces can be stacked horizontally in it and can be mounted vertically on the feed table;

[0007] Feeding module: including a discharging cylinder and a handling module arranged on the feeding table, wherein the discharging cylinder pushes the workpiece dropped from the lower end outlet of the magazine carrier to one end of the handling module;

[0008] Transfer table: fixedly connected to the bed at the other end of the transport module and provided with a positioning groove matching the shape of the workpiece on its upper end surface;

[0009] Pick-and-place module: includes a machine tool spindle and a pick-and-place clamping cylinder fixedly connected to the machine tool spindle and used to clamp the workpiece;

[0010] Material receiving carrier: set on the bed to place the finished workpiece;

[0011] The feeding table and the clip carrier are arranged outside the machine tool shell, the transport module transports the workpiece to the transfer table for positioning, and the machine tool spindle drives the pick-up and place module to clamp the workpiece on the transfer table and place the processed workpiece in the receiving carrier.

[0012] Preferably, a feed plate is fixedly connected to the upper end surface of the feed table, an avoidance groove is provided on the lower end surface of the feed plate, a clamping block is fixedly connected to the feed plate, and the lower part of the magazine carrier can be clamped in the clamping block; a drop port is opened on the feed plate below the lower end outlet of the magazine carrier, and a discharge plate is provided on the guide rod of the discharge cylinder, and the discharge cylinder drives the discharge plate to push the workpiece that falls below the drop port out of the feed plate toward the handling module.

[0013] Preferably, an offset cylinder is arranged on the side of the feed plate perpendicular to the length direction of the drop port, the offset cylinder is fixedly connected to the upper end surface of the feed table and a push plate is fixedly connected to its guide rod, the push plate is inserted into the avoidance groove at the lower end of the feed plate and pushes the workpiece to abut the groove wall of the avoidance groove.

[0014] Preferably, a guide block is fixedly connected to the upper end surface of the feed table on one side of the feed plate where the workpiece is pushed out, and a guide groove that can accommodate the workpiece and match the workpiece is opened on the guide block, and the discharge cylinder can push the workpiece into the guide groove.

[0015] Preferably, a proximity sensor is fixedly embedded on the upper end surface of the feeding table below the drop port.

[0016] Preferably, the transport module includes a screw linear module fixedly connected to the upper end surface of the feed table on the side where the workpiece is pushed out, a transport telescopic cylinder fixedly connected to the moving part of the screw linear module, and a transport clamping cylinder fixedly connected to the guide rod of the transport telescopic cylinder.

[0017] Preferably, a pick-up and placement telescopic cylinder is vertically fixedly connected to the main shaft of the machine tool, and a pick-up and placement clamping cylinder is fixedly connected to the guide rod of the pick-up and placement telescopic cylinder.

[0018] Preferably, the material receiving carrier includes a material receiving plate fixedly connected to the bed and a plurality of material receiving rods vertically fixedly connected to the material receiving plate, and the processed workpieces are stacked and clamped in a material receiving cavity composed of the plurality of material receiving rods.

[0019] Preferably, the magazine carrier includes side plates and cover plates respectively provided with slots matching the shapes of the workpieces, and bases are fixedly connected to the end faces of the side plates and cover plates opposite to each other, and the bases can be clamped in the clamping blocks; a paddle is slidably embedded in the lower part of the side plates along their length direction, and a limiting block is fixedly connected to the inner end face of the paddle plate, and when the upper end face of the limiting block abuts against the workpiece, the limiting block prevents the workpiece from falling from the lower end outlet of the magazine carrier, and when the paddle is pushed to disengage the limiting block from the workpiece, the workpiece can fall from the lower end outlet of the magazine carrier into the blanking port.

[0020] Preferably, a fixing plate is fixedly connected to the outer end face of the side plate where the shift plate is set, and the shift plate can be slidably clamped between the side plate and the fixing plate, and a waist-shaped limiting hole is opened on the fixing plate, and a dial button is fixedly connected to the outer end face of the shift plate, and the dial button can be slidably penetrated into the limiting hole, and round pin through holes are correspondingly opened on the two end faces opposite to the fixing plate and the side plate; a vertical plate is fixedly connected to the feeding plate, and a round pin is horizontally fixedly embedded on the vertical plate, and when the base is clamped in the clamping block, the round pin can be penetrated into the round pin through hole and push the shift plate to move so that the limiting block is separated from the workpiece.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The utility model can stack and clamp multiple workpieces at one time by setting a clip carrier, so as to realize continuous loading of workpieces; by setting a feeding module, the workpiece dropped in the clip carrier can be transported to the transfer table to realize automatic loading; by setting a pick-and-place module, the workpiece on the transfer table can be clamped to the processing fixture; by setting a receiving carrier, the collection of processed workpieces can be realized. In addition, by setting the clip carrier outside the machine tool housing, the loading operation of the workpiece can be realized without opening the machine tool protective door. Compared with the prior art, the utility model can automatically and continuously load and unload materials with higher loading and unloading efficiency.

[0023] In addition, the magazine carrier of the utility model is provided with a paddle plate and a stop block. When the magazine carrier of the stacked workpiece is not stuck in the block, the upper end surface of the stop block abuts against the workpiece, and the stop block blocks the workpiece from falling from the lower end outlet of the magazine carrier; when the magazine carrier of the stacked workpiece is stuck in the block, the round pin pushes the paddle plate to separate the stop block from the workpiece, and the workpiece can fall from the lower end outlet of the magazine carrier into the blanking port. Through the above structure, the automatic blanking of the workpiece is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model when used on a machine tool.

[0025] Figure 2 It is a side structural schematic diagram of the utility model when used on a machine tool.

[0026] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0027] Figure 4 It is a schematic diagram of the overall side structure of the utility model.

[0028] Figure 5 It is a schematic diagram of the connection structure of the feeding table, feeding plate, clamping block and feeding module of the utility model.

[0029] Figure 6 for Figure 5 Schematic diagram of the top view structure.

[0030] Figure 7 It is a structural schematic diagram of the magazine carrier of the present utility model.

[0031] Figure 8 for Figure 7 Schematic diagram of the side structure.

[0032] Fig. 9 for Figure 7 AA section structure schematic diagram.

[0033] Fig.10 The utility model is used to load and unload workpieces.

[0034] In the figure: 1, workpiece, 11, workpiece body, 12, raised part,

[0035] 2. Feeding table, 21. Electric box frame, 22. Bottom plate, 23. Column, 24. Support plate, 241. Proximity sensor, 25. Feeding plate, 251. Dropping port, 252. Avoidance groove, 26. Displacement cylinder, 261. Pushing plate, 27. Block, 28. Vertical plate, 281. Round pin, 29. Guide block, 291. Guide groove

[0036] 3. Magazine carrier, 31. Side plate, 311. Side plate slot, 32. Cover plate, 321. Cover plate slot, 33. Handle, 34. Base, 35. Dial plate, 351. Limit block, 352. Dial button, 36. Fixed plate, 361. Limit hole, 37. Round pin through hole,

[0037] 4. Feeding module, 41. Discharging cylinder, 42. Handling module, 421. Screw linear module, 422. Handling telescopic cylinder, 423. Handling clamping cylinder,

[0038] 5. Transfer table, 51. Positioning slot,

[0039] 6. Pick and place module, 61. Pick and place telescopic cylinder, 62. Pick and place clamping cylinder,

[0040] 7. Material receiving carrier, 71. Material receiving plate, 72. Material receiving rod,

[0041] 8. CNC machine tool, 81. Machine tool housing, 82. Bed, 83. Machine tool spindle, 84. Processing fixture. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example

[0044] See attached Figure 1 , 2 , 3, and 4 show an automatic loading and unloading device for a machine tool, comprising a feeding table 2, a clip carrier 3, a feeding module 4, a transfer table 5, a pick-and-place module 6, and a receiving carrier 7. The loading and unloading device is also used in conjunction with a numerically controlled machine tool 8, which comprises a machine tool housing 81, a bed 82 installed in the machine tool housing 81, a machine tool spindle 83 installed in the machine tool housing 81 above the bed 82, and a processing fixture 84 installed on the bed 82 below the machine tool spindle 83.

[0045] 7 , 8 , and 9 , a plurality of workpieces 1 can be stacked horizontally in the magazine carrier 3 and can be vertically mounted on the feed table 2 .

[0046] Specifically, the magazine carrier 3 includes a side plate 31 and a cover plate 32 that can be covered on the side plate 31. A cover plate slot 321 matching the workpiece body 11 is provided on the inner end surface of the cover plate 32, and a side plate slot 311 matching the three protrusions 12 is provided on the inner end surface of the side plate 31. When the side plate 31 and the cover plate 32 are covered, a handle 33 can be provided on the upper ends of the side plate 31 and the cover plate 32, and the workpiece 1 can fall from the lower end exit of the magazine carrier 3 surrounded by the side plate slot 311 and the cover plate slot 321. In order to facilitate the magazine carrier 3 to be clamped in the clamping block 27, a base 34 is fixedly connected to the end surfaces of the side plate 31 and the cover plate 32 that are separated from each other by bolts, and the base 34 can be clamped in the clamping block 27.

[0047] In order to prevent the workpiece 1 in the clip carrier 3 from falling out of the lower end outlet when the clip carrier 3 is still stuck in the blocking block 27, in the present embodiment, a dial plate 35 is slidably embedded in the lower part of the side plate 31 along its length direction, and a limiting block 351 is integrally formed and fixedly connected with the inner end surface of the dial plate 35. When the upper end surface of the limiting block 351 abuts against the lower end surface of the raised portion 12 in the middle of the workpiece 1, the limiting block 351 blocks the workpiece 1 from falling out of the lower end outlet of the clip carrier 3. When the dial plate 35 is toggled to make the limiting block 351 and the workpiece 1 offset and disengaged, the workpiece 1 can fall from the lower end outlet of the clip carrier 3 into the blanking port 251.

[0048] In order to facilitate the installation of the dial plate 35, a fixing plate 36 is fixedly connected to the outer end surface of the side plate 31 where the dial plate 35 is set by bolts, and the dial plate 35 can be slidably clamped between the side plate 31 and the fixing plate 36. A waist-shaped limiting hole 361 is opened on the fixing plate 36, and a dial button 352 is integrally formed and fixedly connected to the outer end surface of the dial plate 35, and the dial button 352 can be slidably penetrated into the limiting hole 361. When the dial button 352 is in the middle position of the limiting hole 361, the limiting block 351 supports the workpiece 1 in the clip carrier 3, and when the dial button 352 is at both sides of the limiting hole 361, the limiting block 351 is separated from the workpiece 1 in the clip carrier 3.

[0049] Furthermore, in order to facilitate the automatic disengagement of the limit block 351 from the workpiece 1 when the base 34 of the magazine carrier 3 is clamped in the clamping block 27, so that the workpiece 1 automatically falls from the lower end outlet of the magazine carrier 3 to the drop port 251, round pin holes 37 are correspondingly opened on the two end surfaces opposite to each other of the fixing plate 36 and the side plate 31. When the round pin 281 described below is inserted into the round pin hole 37, the shift plate 35 can be pushed to move to disengage the limit block 351 from the workpiece 1.

[0050] See also Figure 4 , 5As shown in Figures 6 and 7, the feeding table 2 includes an electric box frame 21 arranged outside the machine tool housing 81, a base plate 22 fixedly installed horizontally on the upper end surface of the electric box frame 21, a column 23 vertically installed on the base plate 22, and a support plate 24 installed horizontally on the upper end surface of the column 23.

[0051] A feed plate 25 is horizontally mounted on the upper end surface of the support plate 24 of the feed table 2 by bolts, and a drop opening 251 is provided on the feed plate 25. The size of the drop opening 251 matches the shape of the workpiece 1, that is, the workpiece 1 can drop from the drop opening 251 to the bottom of the feed plate 25. In order to load and unload two workpieces 1 at a time, in this embodiment, two drop openings 251 are arranged in parallel and opposite to each other, and the length direction of the drop opening 251 is perpendicular to the length direction of the bed 82. In order to realize the drop of the workpiece 1 to the bottom of the feed plate 25 and to side-push and position the workpiece 1 and to push it out from the bottom of the feed plate 25, an avoidance groove 252 is provided on the lower end surface of the feed plate 25, and the avoidance groove 252 can be arranged on both sides of the lower end surface of the feed plate 25.

[0052] Furthermore, in order to laterally position the workpiece 1 that falls from the blanking port 251 into the avoidance groove 252, in the present embodiment, offset cylinders 26 are fixedly installed on both sides of the feed plate 25 perpendicular to the length direction of the blanking port 251, and the offset cylinder 26 is fixedly connected to the upper end surface of the support plate 24 by bolts and a push plate 261 is fixedly connected to its guide rod. The push plate 261 can be inserted into the avoidance groove 252 at the lower end of the feed plate 25 and push the workpiece 1 to abut the groove wall of the avoidance groove 252.

[0053] The upper end surfaces of the feeding plate 25 on both sides of the two blanking openings 251 are fixedly connected with clamping blocks 27 by bolts, and the inner end surfaces of the clamping blocks 27 are bent toward the corresponding blanking openings 251 to facilitate clamping the base 34 of the magazine carrier 3 in the clamping blocks 27.

[0054] The upper end surface of the feed plate 25 where the workpiece 1 is pushed out is vertically fixedly connected to the vertical plate 28 by bolts, and a round pin 281 is horizontally fixedly embedded on the vertical plate 28. When the base 34 is clamped in the clamping block 27, the round pin 281 can be inserted into the round pin through hole 37 and push the shift plate 35 to move so that the limit block 351 is separated from the workpiece 1, thereby realizing automatic dropping of the workpiece 1 in the magazine carrier 3.

[0055] In order to further improve the automation level, a proximity sensor 241 is fixedly embedded on the upper end surface of the support plate 24 below the blanking opening 251. The proximity sensor 241 is provided to detect whether the workpiece 1 falls from the blanking opening 251 onto the support plate 24.

[0056] Furthermore, in order to position the workpiece 1 pushed out from the avoidance groove 252, a guide block 29 is fixedly connected to the upper end surface of the support plate 24 on one side of the feed plate 25 from which the workpiece 1 is pushed out by bolts, and a guide groove 291 that can accommodate the workpiece 1 and match the workpiece 1 is opened on the guide block 29, and the following discharge cylinder 41 can push the workpiece 1 into the guide groove 291.

[0057] The feeding module 4 includes a discharge cylinder 41 and a handling module 42 arranged on the feeding platform 2. Specifically, the discharge cylinder 41 is fixedly installed on the lower end surface of the support plate 24 along the length direction of the blanking port 251 by bolts, and a discharge plate (not shown in the figure) is fixedly connected to the guide rod of the discharge cylinder 41. The discharge cylinder 41 drives the discharge plate to push the workpiece 1 dropped below the blanking port 251 toward one end of the handling module 42. The handling module 42 includes a screw linear module 421 fixedly installed on the upper end surface of the support plate 24 on the side where the workpiece 1 is pushed out (i.e., the side where the guide block 29 is installed) by bolts, a handling telescopic cylinder 422 fixedly connected to the moving part of the screw linear module 421, and a handling clamping cylinder 423 fixedly connected to the guide rod of the handling telescopic cylinder 422, and a clamping claw for clamping the workpiece 1 is installed on the handling clamping cylinder 423. The handling module 42 can be a prior art and will not be described here. Since the magazine carrier 3 is disposed outside the machine tool housing 81 , the transport module 42 is disposed inside the machine tool housing 81 to transport the workpiece 1 in the guide block 29 to the transfer table 5 .

[0058] The transfer table 5 is fixedly connected to the bed 82 at the other end of the transport module 42 and is provided with a positioning groove 51 on its upper end surface that matches the shape of the workpiece 1. The transfer table 5 is used to temporarily store the workpiece 1 transported from the guide block 29 to improve the overall processing efficiency. In addition, two positioning grooves 51 are also provided accordingly.

[0059] In order to transfer the workpiece 1 on the transfer table 5 to the processing fixture 84, the utility model also includes a pick-and-place module 6, which includes a machine tool spindle 83, a pick-and-place telescopic cylinder 61 vertically fixedly installed on the machine tool spindle 83, a pick-and-place clamping cylinder 62 fixedly connected to the guide rod of the pick-and-place telescopic cylinder 61, and two pick-and-place clamping cylinders 62 are correspondingly provided. A clamping claw for clamping the workpiece 1 is installed on the pick-and-place clamping cylinder 62. The pick-and-place telescopic cylinder 61 and the pick-and-place clamping cylinder 62 are both prior art.

[0060] In order to facilitate the collection and temporary storage of the processed workpieces 1, a material receiving carrier 7 is fixedly installed on the bed 82 between the transfer table 5 and the processing fixture 84. The material receiving carrier 7 includes a horizontally arranged material receiving plate 71 detachably fixedly connected to the bed 82 and a plurality of material receiving rods 72 vertically fixedly connected to the material receiving plate 71. The processed workpieces 1 are stacked and clamped in the material receiving cavity composed of a plurality of material receiving rods 72.

[0061] The working process of the embodiment of the utility model is as follows:

[0062] See also Figure 1 , 2 As shown, the various parts of the utility model are correspondingly installed on the CNC machine tool 8;

[0063] Automatic feeding: manually put the workpieces 1 in a row into the side plate slot 311 of the side plate 31, put them full to the dial plate 35, turn the dial button 352 to make it in the middle blocking position, that is, the limit block 351 can support the raised part 12 in the middle of the workpiece 1, and then cover the cover plate 32, and the magazine carrier 3 is ready; manually prepare two magazine carriers 3 and put them in the card block 27, when the magazine carrier 3 is pushed inward, the round pin 281 hits the dial plate 35 in the round pin through hole 37, so that the dial plate 35 leaves the blocking position. At this time, the stop block 351 is offset and disengaged from the raised portion 12 of the workpiece 1, so that the workpiece 1 falls into the blanking port 251. When the proximity sensor 241 senses the workpiece 1, the offset cylinder 26 pushes the workpiece 1 to the discharge position, that is, the workpiece body 11 of the workpiece 1 abuts against the groove wall of the avoidance groove 252, and the discharge cylinder 41 pushes the workpiece 1 into the guide groove 291 of the guide block 29; and then the handling module 42 moves the workpiece 1 to the positioning groove 51 in the transfer table 5 in the machine tool housing 81;

[0064] Automatic material picking: When the pick-and-place module 6 on the machine tool spindle 83 moves to the top of the transfer table 5, the pick-and-place telescopic cylinder 61 and the pick-and-place clamping cylinder 62 of the pick-and-place module 6 are actuated to pick up the workpiece 1, and then bring it to the top of the processing fixture 84, place the workpiece 1 on the processing fixture 84, and complete the precise positioning of the workpiece 1. The processing fixture 84 is a prior art and will not be described in detail here.

[0065] Automatic material collection: After the processing is completed, the pick-and-place module 6 on the machine tool spindle 83 moves to the top of the processing fixture 84, the pick-and-place module 6 picks up the workpiece 1, and then brings it to the top of the material collection carrier 7, and places the workpiece 1 into the material collection carrier 7;

[0066] Circular operation: After the material collection is completed, the blowing nozzle (not shown in the figure, which is the prior art) on the pick-and-place module 6 on the machine tool spindle 83 blows away the waste chips on the processing fixture 84, and then repeats the automatic material collection action to complete the cycle.

[0067] In the above process, the proximity sensor 241, offset cylinder 26, discharge cylinder 41, transport module 42, pick-and-place module 6, CNC machine tool 8, etc. are controlled by the existing controller. The specific control principle and connection method are existing technologies. In order to realize automated design, it is sufficient to meet the above working process.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic loading and unloading device for a machine tool, comprising a feeding table, characterized in that: Also includes: Clip carrier: Multiple workpieces can be stacked horizontally in it and can be mounted vertically on the feed table; Feeding module: including a discharging cylinder and a handling module arranged on the feeding table, wherein the discharging cylinder pushes the workpiece dropped from the lower end outlet of the magazine carrier to one end of the handling module; Transfer table: fixedly connected to the bed at the other end of the transport module and provided with a positioning groove matching the shape of the workpiece on its upper end surface; Pick-and-place module: includes a machine tool spindle and a pick-and-place clamping cylinder fixedly connected to the machine tool spindle and used to clamp the workpiece; Material receiving carrier: set on the bed to place the finished workpiece; The feeding table and the clip carrier are arranged outside the machine tool shell, the transport module transports the workpiece to the transfer table for positioning, and the machine tool spindle drives the pick-up and place module to clamp the workpiece on the transfer table and place the processed workpiece in the receiving carrier.

2. The automatic loading and unloading device for machine tools according to claim 1, characterized in that: A feed plate is fixedly connected to the upper surface of the feed table, an avoidance groove is arranged on the lower end surface of the feed plate, a clamping block is fixedly connected to the feed plate, and the lower part of the magazine carrier can be clamped in the clamping block; a drop port is opened on the feed plate below the lower end outlet of the magazine carrier, a discharge plate is arranged on the guide rod of the discharge cylinder, and the discharge cylinder drives the discharge plate to push the workpiece dropped below the drop port out of the feed plate toward the handling module.

3. The automatic loading and unloading device for machine tools according to claim 2, characterized in that: An offset cylinder is arranged on the side of the feed plate perpendicular to the length direction of the drop port. The offset cylinder is fixedly connected to the upper end surface of the feed table and a push plate is fixedly connected to its guide rod. The push plate is inserted into the avoidance groove at the lower end of the feed plate and pushes the workpiece to abut the groove wall of the avoidance groove.

4. The automatic loading and unloading device for machine tools according to claim 3, characterized in that: A guide block is fixedly connected to the upper end surface of the feeding table on one side of the feeding plate where the workpiece is pushed out, and a guide groove which can accommodate the workpiece and matches the workpiece is opened on the guide block, and the discharge cylinder can push the workpiece into the guide groove.

5. The automatic loading and unloading device for machine tools according to claim 3, characterized in that: A proximity sensor is fixedly embedded on the upper surface of the feeding table below the drop port.

6. The automatic loading and unloading device for machine tools according to claim 1, characterized in that: The transport module includes a screw linear module fixedly connected to the end surface of the feeding table on the side where the workpiece is pushed out, a transport telescopic cylinder fixedly connected to the moving part of the screw linear module, and a transport clamping cylinder fixedly connected to the guide rod of the transport telescopic cylinder.

7. The automatic loading and unloading device for machine tools according to claim 1, characterized in that: A pick-and-place telescopic cylinder is vertically fixedly connected to the main shaft of the machine tool, and a pick-and-place clamping cylinder is fixedly connected to the guide rod of the pick-and-place telescopic cylinder.

8. The automatic loading and unloading device for machine tools according to claim 1, characterized in that: The material receiving carrier includes a material receiving plate fixedly connected to the bed and a plurality of material receiving rods vertically fixedly connected to the material receiving plate. The processed workpieces are stacked and clamped in a material receiving cavity composed of the plurality of material receiving rods.

9. The automatic loading and unloading device for machine tools according to claim 2, characterized in that: The magazine carrier includes side plates and cover plates, each of which is provided with a slot matching the shape of the workpiece. Bases are fixedly connected to the end faces of the side plates and the cover plates that are opposite to each other, and the base can be clamped in the clamping block. A paddle is slidably embedded in the lower part of the side plate along its length direction, and a limiting block is fixedly connected to the inner end face of the paddle plate. When the upper end face of the limiting block abuts against the workpiece, the limiting block prevents the workpiece from falling from the lower end outlet of the magazine carrier. When the paddle is pushed to disengage the limiting block from the workpiece, the workpiece can fall from the lower end outlet of the magazine carrier into the blanking port.

10. The automatic loading and unloading device for machine tools according to claim 9, characterized in that: A fixing plate is fixedly connected to the outer end face of the side plate where the shift plate is set, and the shift plate can be slidably clamped between the side plate and the fixing plate. A waist-shaped limiting hole is opened on the fixing plate, and a dial button is fixedly connected to the outer end face of the shift plate. The dial button can be slidably penetrated into the limiting hole, and round pin through holes are correspondingly opened on the two end faces opposite to the fixing plate and the side plate; a vertical plate is fixedly connected to the feeding plate, and a round pin is horizontally fixedly embedded on the vertical plate. When the base is clamped in the clamping block, the round pin can be penetrated into the round pin through hole and push the shift plate to move so that the limiting block is separated from the workpiece.

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