Automatic feeding device of bar punching machine

Abstract

The invention discloses an automatic feeding device of a bar punching machine. The automatic feeding device comprises a feeding rail mechanism. A bar pushing and locking mechanism is arranged at the discharging end of the feeding rail mechanism. In the stamping machining process of bars, the bars are locked through the bar pushing and locking mechanism, and after stamping, the bars are pushed to switch the stamping position. The feeding track mechanism comprises a feeding track, and a push wheel structure for pushing bars to advance is assembled and connected to the feeding track. The feeding track mechanism further comprises a bar feeding structure arranged on one side of the feeding track, and the bar feeding structure is used for jacking bars into the feeding track. By means of the structure, feeding, feeding and locking of bars in the stamping process and dragging and switching of stamping parts after stamping are achieved. And the production and processing efficiency of the bars is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of feeding materials for a bar punch press, and in particular relates to an automatic feeding device for a bar punch press. Background Art

[0002] The bar is a steel bar with a circular longitudinal cross-section and a certain length. After being processed by processing equipment, the bar can be processed into an e-shaped spring bar for installation on the track and used as a mounting connector on the track.

[0003] During the processing, longer bars are fed to processing equipment such as stamping equipment for stamping and then processed into E-shaped spring bars.

[0004] During the stamping process of loading the material into the stamping equipment, due to the long length of the bar, the operation is difficult to push the long bar, and the operator needs to push the bar continuously. Secondly, during the stamping process, the punch of the stamping equipment presses on the end of the bar. Under the huge impact force, the end of the bar is easily "tilted up" after being pressed, resulting in low safety of the stamping process. Specifically, it is difficult to lock the long bar during the stamping process.

[0005] At the same time, the length of the rod is large. During the loading process, the rod is firstly bulky. Secondly, the hollow part in the length direction of the rod is too large. The rod is an elastic steel rod material, so it has a large deflection, which causes the rod to be easily deformed during the loading process, seriously affecting the qualification rate of the subsequent rod processing into spring strips.

[0006] Therefore, due to the above-mentioned defects in the processing of bars with large length and large deflection, the efficiency and effect of bar production and processing are not high. Summary of the invention

[0007] Based on the above background, an object of the present invention is to provide an automatic feeding device for a bar punch press.

[0008] To achieve the above objectives, the present invention adopts the following technical solutions:

[0009] An automatic feeding device for a bar punch press comprises a feeding track mechanism;

[0010] The discharge end of the feeding track mechanism is provided with a bar pushing and locking mechanism, which locks the bar during the stamping process and pushes the bar after stamping to switch the stamping position;

[0011] The feeding track mechanism comprises a feeding track, and the feeding track is equipped with a push wheel structure for pushing the bar material forward;

[0012] The feeding track mechanism also includes a bar loading structure arranged at one side of the feeding track, and the bar loading structure is used to push the bar into the feeding track.

[0013] Preferably, the feeding track comprises track parts symmetrically arranged on both sides, and a plurality of track support frames are fixedly connected to the bottom of the track parts;

[0014] The longitudinal cross-section of the rail portion is U-shaped.

[0015] Preferably, the push wheel structure includes a plurality of active push wheel structures, and the active push wheel structure includes active push wheels rotatably connected between the track parts; and a plurality of motors driving the active push wheels to rotate are installed on the outer sides of the track parts.

[0016] Preferably, the push wheel structure further includes a plurality of driven push wheels cooperating with the active push wheel structure;

[0017] The driven push wheel is rotatably connected between the track parts;

[0018] The active push wheel and the driven push wheel are respectively provided with slots matching with the bar material;

[0019] The cross-sectional shape of the notch is V-shaped.

[0020] Preferably, the bar material feeding structure comprises a plurality of feeding cylinders, the piston rods of the feeding cylinders are fixedly connected to a material ejection seat; a groove matching with the bar material is formed on the top of the material ejection seat;

[0021] The bar feeding structure also includes a plurality of bar supporting structures corresponding to the feeding cylinders;

[0022] The bar support structure includes a pair of spaced-apart crossbeams, and the loading cylinder is located between the crossbeams;

[0023] The cylinder barrel of the feeding cylinder is fixedly installed between the bottoms of the cross beams;

[0024] One side of the cross beam is fixedly welded to the side wall of the track portion, and the outer end of the other side of the cross beam is fixedly connected to a cross beam bracket;

[0025] During the loading process, the bar is supported between the beams. After the loading cylinder pushes up the bar, it is flipped and pushed between the rail parts.

[0026] Preferably, the bar pushing and locking mechanism comprises a bracket structure;

[0027] The front and rear ends of the support structure are respectively fixedly connected to bases;

[0028] The tops of the bases are respectively equipped with locking structures;

[0029] A rod pushing structure located between the locking structures is installed at the bottom of the support structure.

[0030] Preferably, the locking structure comprises a clamping frame, and a bar guide tube is connected to the side wall of the clamping frame facing the bar;

[0031] Clamping cylinders are respectively installed on both sides of the clamping frame, and the piston rods of the clamping cylinders are respectively fixedly connected with clamping seats located in the clamping frame, and the clamping seats are provided with arc-shaped notches for clamping bar materials.

[0032] Preferably, the bar pushing structure comprises a slide rail fixedly connected to the bottom position of the support structure;

[0033] The bottom of the slide rail is limitedly and slidably connected with a slide table, the bottom of the slide table is assembled and connected with a pair of cylinders, the piston rods of the cylinders are fixedly connected with mutually matching bar clamping seats, and the bar clamping seats are respectively provided with bar clamping openings.

[0034] Preferably, both sides of the top of the slide are respectively fixedly connected with anti-deflection seats that are isolated on the outside of the slide rail;

[0035] A sliding seat slidably connected to the slide rail is fixedly connected to the top center of the slide table;

[0036] A lead screw motor is installed at the bottom of the support structure, and a lead screw threadedly connected to a slide seat is assembled on the lead screw motor. The end of the lead screw is rotatably connected to a lead screw bearing seat, and the lead screw bearing seat is fixedly installed at the bottom of the support structure.

[0037] The present invention has the following beneficial effects:

[0038] 1. The push wheel structure includes an active push wheel and a driven push wheel, each of which is provided with a notch that matches the bar material; the cross-sectional shape of the notch is V-shaped. That is, the active push wheel and the driven push wheel are in a dumbbell shape, and during the pushing process of the bar material, the bar material is located in the V-shaped notch. Driven by the motor, the bar material can be pushed smoothly. The above method can realize the smooth pushing and feeding of the longer bar material.

[0039] 2. During the loading process, each bar is supported between the beams by the bar support structure. After the loading cylinder pushes up the bar, the bar is separated from the beam and is higher than the track portion, making it easy for the bar to roll into the track portion. In this way, multiple loading cylinders are used to push up the bar along its length. In this process, since the bar is supported in multiple sections, the defect of easy deformation of the bar due to the deflection of the long bar is solved.

[0040] 3. The locking structure is used to lock the bar close to the stamping part to avoid violent shaking of the bar during the stamping process.

[0041] 4. During the working process, a pair of cylinders and a bar clamp are connected through the bottom assembly of the slide, and the bar clamps are respectively provided with bar clamping openings. During the clamping process of the bar, the cylinder drives the lower bar clamp to clamp the bar. When the stamping is completed, the locking structure releases the bar, and the slide is driven to move by the above-mentioned lead screw motor. Since the bar is locked between the bar clamps, the bar is dragged toward the front side to switch the stamping part of the bar. In this way, the stamping process of repeatedly dragging the bar to the stamping equipment is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0043] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the present invention;

[0044] Figure 2 It is a structural schematic diagram of a rod material supporting structure in an embodiment of the present invention;

[0045] Figure 3 It is a structural schematic diagram of the push wheel structure in an embodiment of the present invention;

[0046] Figure 4 This is one of the structural schematic diagrams of the locking structure in an embodiment of the present invention;

[0047] Figure 5 This is the second structural diagram of the locking structure in the embodiment of the present invention;

[0048] Figure 6 It is a structural schematic diagram of the cylinder and the bar clamp in the embodiment of the present invention;

[0049] Figure 7 This is a schematic diagram of the structure of a slide rail slidably connected to a slide table in an embodiment of the present invention;

[0050] Figure 8 Schematic diagram of the structure of the lead screw motor and the lead screw in the embodiment of the present invention.

[0051] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0054] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0055] Example 1

[0056] like Figure 1-7 As shown, an automatic feeding device for a bar punching machine comprises a feeding track mechanism 1; a bar 4 is loaded into the feeding track mechanism 1 and fed to a punching machine device 3 for punching.

[0057] Specifically, the feeding track mechanism 1 includes a feeding track 11. Specifically, the feeding track 11 includes track parts symmetrically arranged on both sides (the longitudinal cross-section shape of the track part is U-shaped), and a plurality of track support frames 12 are fixedly connected to the bottom of the track part.

[0058] At the same time, a push wheel structure 13 for pushing the bar material 4 forward is assembled and connected to the feeding track 11.

[0059] Specifically, the bar material 4 is loaded between the rail parts, and the bar material 4 is supported on the push wheel structure 13 , and the bar material 4 is pushed by the push wheel structure 13 .

[0060] Specifically, the push wheel structure 13 includes a plurality of active push wheel structures 13, and the active push wheel structure 13 includes an active push wheel 131 rotatably connected between the track parts; correspondingly, a plurality of motors 132 for driving the active push wheel 131 to rotate are installed on the outer side of the track part (the two ends of the active push wheel 131 are installed with a rotating shaft rotatably connected to the track part, and the motor output shaft is installed on the rotating shaft).

[0061] At the same time, the push wheel structure 13 also includes a plurality of driven push wheels 133 cooperating with the active push wheel 131 structure 13 (similarly, both ends of the driven push wheels 133 are equipped with rotating shafts rotatably connected to the track part).

[0062] In order to smoothly convey the bar material 4, the active push wheel 131 and the driven push wheel 133 are respectively provided with notches that match the bar material 4; the cross-sectional shape of the notches is V-shaped. That is, the active push wheel 131 and the driven push wheel 133 are in the shape of dumbbells, and during the pushing process of the bar material 4, the bar material 4 is located in the V-shaped notches. Driven by the motor, the bar material 4 can be smoothly pushed.

[0063] The above method can be used to push and feed the longer bar material 4.

[0064] Example 2

[0065] like Figure 1-7 As shown, based on the structure of Example 1, in order to smoothly flip and push the longer rod 4 into the track portion and support it on the active push wheel 131 and the driven push wheel 133, the feeding track mechanism 1 also includes a rod loading structure 14 arranged at the left side of the track portion. The rod loading structure 14 is used to push the rod 4 into the feeding track 11.

[0066] Specifically, the bar material feeding structure 14 includes a plurality of feeding cylinders 142 , and the piston rods of the feeding cylinders 142 are fixedly connected to a material ejection seat 143 ; a groove matching with the bar material 4 is formed on the top of the material ejection seat 143 .

[0067] At the same time, the bar feeding structure 14 also includes a plurality of bar supporting structures corresponding to the feeding cylinders 142 .

[0068] Specifically, the bar support structure includes a pair of spaced-apart cross beams 141 , and the loading cylinder 142 is located between the cross beams 141 .

[0069] At the same time, the cylinder barrel of the feeding cylinder 142 is fixedly installed between the bottoms of the cross beams 141 (specifically, according to the existing method, the cylinder barrel of the feeding cylinder 142 is fixedly installed by means of a cylinder barrel bracket to achieve the installation and fixation of the cylinder).

[0070] On each bar support structure, the cross beam 141 at the rear side is fixedly welded to the side wall of the track portion, and the outer end of the cross beam 141 at the front side is fixedly connected to a cross beam bracket 1411 (the cross beam bracket 1411 is supported on the ground).

[0071] During the loading process, the rod 4 is supported between the cross beams 141. After the loading cylinder 142 pushes up the rod 4, the rod 4 is separated from the cross beam 141 and is higher than the track portion. At this time, the operator assists in turning over and rolling the rod 4 into the track portion. In this way, the rod 4 is pushed up by cooperating with multiple loading cylinders 142 along the length of the rod 4. In this process, since the rod 4 is supported in multiple sections, the defect of easy deformation of the rod 4 due to the deflection of the long length of the rod 4 is solved.

[0072] Example 3

[0073] like Figure 1-7 As shown, based on the structure of Example 2, when the front end of the rod 4 is fed into the stamping equipment for stamping, in order to increase the stability of the rod 4 during the stamping process and avoid violent and unstable movement of the rod 4 under the action of stamping, a bar pushing and locking mechanism 2 is provided at the discharge end of the above-mentioned feeding track mechanism 1. The rod 4 is locked by the bar pushing and locking mechanism 2 during the stamping process, and the rod 4 is pushed to switch the stamping position after stamping.

[0074] Specifically, the rod pushing and locking mechanism 2 includes a support structure 21; the shape of the support structure 21 is: the support structure 21 includes an I-shaped top plate portion, and vertical portions arranged vertically downward are integrally formed at the four end corners of the I-shaped top plate portion, and a base 211 is fixedly connected to the front and rear ends of the support structure 21; the two ends of the base 211 are respectively fixed on the vertical portions.

[0075] Locking structures 23 are respectively assembled and connected to the top of the base 211 at the front and rear ends.

[0076] Specifically, the locking structure 23 includes a clamping frame 231, and the side wall of the clamping frame 231 facing the rod 4 is connected to a rod guide tube 2311 (the outer end portion of the rod guide tube 2311 is large, and the inner end portion is small, and is trumpet-shaped, which is convenient for introducing the rod); clamping cylinders 232 are respectively installed on both sides of the clamping frame 231, and the piston rods of the clamping cylinders 232 are respectively fixedly connected to clamping seats 233 located in the clamping frame 231 (the piston rod of the clamping cylinder 232 is slidably connected to the clamping frame 231), and the clamping seats 233 are provided with arc-shaped grooves for clamping the rod 4.

[0077] When the bar 4 is guided into the clamping frame 231 along the bar guide tube, the clamping cylinders 232 on both sides cooperate to drive the clamping seat 233 to clamp the bar 4 between the arc-shaped notches. With the cooperation of the front and rear locking structures 23, the part of the bar 4 close to the stamping part is fully locked, which greatly improves the stability of the bar 4 during the stamping process.

[0078] Example 4

[0079] like Figure 1-8 As shown, based on the structure of Example 3, after the stamping is completed, in order to continue to push the bar 4 forward, a bar 4 pushing structure 24 located between the locking structures 23 is installed at the bottom of the above-mentioned support structure 21.

[0080] Specifically, the bar pushing structure 24 includes a slide rail 241 fixedly connected to the bottom position of the support structure 21 (specifically located at the I-shaped top plate portion).

[0081] A slide table 243 is connected to the bottom of the slide rail 241 in a limited sliding manner. Specifically, according to the existing sliding manner, a slide seat 2411 is fixedly connected to the top center of the slide table 243 and is slidably connected to the slide rail 241. The specific manner is the same as the existing sliding connection manner. The top of the slide seat 2411 is integrally formed with slide bars 24111 arranged on both sides, and a slide groove portion of the limited sliding slide bar 2411 is correspondingly provided at the bottom of the slide rail 241.

[0082] At the same time, the two sides of the top of the slide 243 are respectively fixedly connected with the anti-deflection seat 242 that blocks the outside of the slide rail 241. During the sliding process, the anti-deflection seat 242 is limited and blocked to maintain the linear stability of the sliding.

[0083] At the same time, according to the existing screw driving method, a screw motor 2412 is installed at the bottom of the above-mentioned support structure 21 (specifically, it is the same as the existing screw motor installation method, the screw motor 2412 is installed at the bottom rear side of the slide rail 241, and is installed on the support structure 21 through the motor bracket installed on the screw motor 2412. The motor bracket is distributed on both sides of the slide rail 241 and is fastened to the threaded groove a opened on the support structure 21 by bolts). The same as the existing method, the screw motor 2411 is assembled and connected with a screw 2413 threadedly connected to the slide seat. The same as the existing screw rotation connection method, the end of the screw 2413 is rotatably connected to a screw bearing seat 2414, and the screw bearing seat 2414 is fixedly installed at the bottom of the support structure 21, and is specifically fastened to the bottom of the front end bracket b of the slide rail 241 by the connecting bolts on the screw bearing 2414.

[0084] The movement of the slide 243 is driven by a screw motor in the same principle as the existing screw drive structure.

[0085] At the same time, a pair of cylinders 244 are assembled and connected to the bottom of the slide 243 (the cylinder barrels of the cylinders 244 are fixedly installed on the slide 243), and the piston rods of the cylinders 244 are fixedly connected to the bar clamps 245 that cooperate with each other, and the bar clamps 245 are respectively provided with arc-shaped bar clamping openings. In the process of clamping the bar 4, the cylinder 244 drives the lower bar clamp 245 to clamp the bar 4.

[0086] When the stamping is completed, the locking structure 23 releases the bar 4 and drives the slide 243 to move through the above-mentioned screw motor. Since the bar 4 is locked between the bar clamps 245, the bar 4 is dragged toward the front side to switch the stamping position of the bar 4.

[0087] This process is repeated to achieve full stamping processing of the long bar material 4.

[0088] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An automatic feeding device for a bar punch press, characterized in that: Including a feeding track mechanism; The discharge end of the feeding track mechanism is provided with a bar pushing and locking mechanism, which locks the bar during the stamping process and pushes the bar to switch the stamping position after stamping. The feeding track mechanism comprises a feeding track, and the feeding track is equipped with a push wheel structure for pushing the bar material forward; The feeding track mechanism also includes a bar loading structure arranged at one side of the feeding track, and the bar loading structure is used to push the bar into the feeding track.

2. The automatic feeding device for a bar punch press according to claim 1, characterized in that: The feeding track includes track parts symmetrically arranged on both sides, and a plurality of track support frames are fixedly connected to the bottom of the track parts; The longitudinal cross-section of the rail portion is U-shaped.

3. The automatic feeding device for a bar punch press according to claim 2, characterized in that: The push wheel structure includes a plurality of active push wheel structures, and the active push wheel structure includes active push wheels rotatably connected between the track parts; and a plurality of motors driving the active push wheels to rotate are installed on the outer sides of the track parts.

4. The automatic feeding device for a bar punch press according to claim 3, characterized in that: The push wheel structure also includes a plurality of driven push wheels that cooperate with the active push wheel structure; The driven push wheel is rotatably connected between the track parts; The active push wheel and the driven push wheel are respectively provided with slots matching with the bar material; The cross-sectional shape of the notch is V-shaped.

5. The automatic feeding device for a bar punch press according to claim 2, characterized in that: The bar material feeding structure comprises a plurality of feeding cylinders, the piston rods of the feeding cylinders are fixedly connected to a material ejection seat; a groove matching the bar material is formed on the top of the material ejection seat; The bar feeding structure also includes a plurality of bar supporting structures corresponding to the feeding cylinders; The bar support structure includes a pair of spaced-apart crossbeams, and the loading cylinder is located between the crossbeams; The cylinder barrel of the feeding cylinder is fixedly installed between the bottoms of the cross beams; One side of the cross beam is fixedly welded to the side wall of the track portion, and the outer end of the other side of the cross beam is fixedly connected to a cross beam bracket; During the loading process, the bar is supported between the beams. After the loading cylinder pushes up the bar, it is flipped and pushed between the rail parts.

6. The automatic feeding device for a bar punch press according to claim 1, characterized in that: The bar pushing and locking mechanism comprises a bracket structure; The front and rear ends of the support structure are respectively fixedly connected to bases; The tops of the bases are respectively equipped with locking structures; A rod pushing structure located between the locking structures is installed at the bottom of the support structure.

7. The automatic feeding device for a bar punch press according to claim 6, characterized in that: The locking structure comprises a clamping frame, and a bar guide tube is connected to the side wall of the clamping frame facing the bar; Clamping cylinders are respectively installed on both sides of the clamping frame, and the piston rods of the clamping cylinders are respectively fixedly connected with clamping seats located in the clamping frame, and the clamping seats are provided with arc-shaped notches for clamping bar materials.

8. The automatic feeding device for a bar punch press according to claim 6, characterized in that: The bar pushing structure includes a slide rail fixedly connected to the bottom position of the support structure; The bottom of the slide rail is limitedly and slidably connected with a slide table, the bottom of the slide table is assembled and connected with a pair of cylinders, the piston rods of the cylinders are fixedly connected with mutually matching bar clamping seats, and the bar clamping seats are respectively provided with bar clamping openings.

9. The automatic feeding device for a bar punch press according to claim 8, characterized in that: Both sides of the top of the slide are respectively fixedly connected with anti-deflection seats that are isolated on the outside of the slide rail; A sliding seat slidably connected to the slide rail is fixedly connected to the top center of the slide table; A lead screw motor is installed at the bottom of the support structure, and a lead screw threadedly connected to a slide seat is assembled on the lead screw motor. The end of the lead screw is rotatably connected to a lead screw bearing seat, and the lead screw bearing seat is fixedly installed at the bottom of the support structure.

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