Rapid replacement forming die for sheet metal machining

Abstract

The utility model discloses a quick-change forming die for sheet metal processing, which belongs to the field of manufacturing industry and comprises a processing table, and a stamping device is connected to the upper end of the processing table. A quick die changing mechanism is installed at the upper end of the machining table. The quick die changing mechanism comprises a limiting driving assembly, a die plate containing frame, a die plate fixing groove and a die plate blocking assembly. The limiting driving assembly is connected with the template placing frame; three template fixing grooves are formed in the template placing frame, and three groups of template blocking assemblies are mounted on the template placing frame; a positioning mechanism used for positioning the template assembly is installed at the upper end of the machining table. By means of the mode, the template assembly at the working position can be rapidly replaced, and time waste is reduced; and when the stamping device is used for machining the workpiece, the template assembly which is used for machining the workpiece and cannot be used again is replaced with the template assembly to be used, so that the working time is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the manufacturing field, concretely relates to a quick replacement forming die for sheet metal machining. BACKGROUND

[0002] In manufacturing, sheet metal machining dies are widely used in various industries, such as automobile manufacturing, home appliance manufacturing, aerospace, and electronic communication; the design, manufacture, and application of sheet metal machining dies are of great significance to improving production efficiency, reducing production cost, and ensuring product quality.

[0003] With the development of manufacturing transformation and upgrading and intelligent manufacturing, the demand for sheet metal machining dies is also growing; along with it, continuous innovation and improvement of die design technology, processing technology, material selection, and mechanical equipment; sheet metal machining dies, as an important part of manufacturing, will continue to play a key role in digital manufacturing, intelligent manufacturing, and flexible manufacturing, and promote the development of the entire manufacturing industry to a higher level.

[0004] Chinese patent CN111215504A discloses a hardware die for sheet metal machining, which includes a lower die seat, a bracket installed on the outside of the lower die seat, a hydraulic rod A installed on the top inside of the bracket, an upper die seat installed on the bottom of the hydraulic rod A, a punch installed on the bottom of the upper die seat, a die groove formed on the top inside of the lower die seat, a support rod installed symmetrically on both sides of the lower die seat, a hydraulic rod B installed on the inside of the support rod, and a clamping plate installed on the bottom of the hydraulic rod B; the clamping plate is lowered by the hydraulic rod B to clamp the two ends of the sheet metal, the clamping of the clamping plate can keep the sheet metal stable during the stamping process, avoid deformation of the sheet metal caused by deviation, and thus affect the processing quality; the device is convenient to operate, and the staff can use it without complicated learning, greatly improving the practicality of the device; however, this technology still has the following problems: when the die needs to be replaced, the replacement time is long due to the heavy weight of the die, which shortens the working time.

[0005] Therefore, the utility model designs a quick replacement forming die for sheet metal machining to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of the above shortcomings of the prior art, the utility model provides a quick replacement forming die for sheet metal machining.

[0007] To achieve the above purpose, the utility model realizes the following technical scheme:

[0008] A quick replacement forming die for sheet metal machining, comprising a machining table, a stamping device for stamping the die is connected to the upper end of the machining table;

[0009] A quick die-changing mechanism for quickly replacing the stamping die is installed on the upper end of the processing table;

[0010] The quick mold change mechanism includes a limit drive assembly, a template placement frame, a template fixing groove and a template blocking assembly; the limit drive assembly is connected to the template placement frame; the template placement frame is provided with three template fixing grooves for fixing the template assembly, and the template fixing grooves are evenly distributed along the length direction of the template placement frame at equal intervals; the template placement frame is equipped with three sets of template blocking assemblies corresponding to the template fixing grooves one by one;

[0011] A positioning mechanism for positioning the template assembly is installed on the upper end of the processing table;

[0012] Furthermore, the limit drive assembly includes a transverse cylinder, a limit roller and a conveyor roller; the transverse cylinder is fixedly connected to the right end of the processing table, the transverse cylinder driving end is fixedly connected to the template placement frame, a plurality of limit rollers are rotatably installed on the upper end of the processing table, and the limit rollers are located at the front and rear sides of the template placement frame and are roll-connected to the template placement frame; a plurality of conveyor rollers are installed at the left and right ends of the processing table, the conveyor rollers are rotatably connected to the front and rear ends of the processing table, and the conveyor rollers are roll-connected to the template placement frame;

[0013] Furthermore, the traverse cylinder is a double-stroke cylinder;

[0014] Furthermore, the template blocking assembly includes an active block, a driven block, a spring, a block limiting shaft, a housing and a block rotating shaft; the front end of the template placement frame is fixedly connected to the housing, and the template placement frame is fixedly connected to the block rotating shaft above the housing; the template placement frame is fixedly connected to two block limiting shafts on the left and right sides above the block rotating shaft; the active block and the driven block are both rotatably connected to the block rotating shaft, the active block abuts against the block limiting shaft, and the driven block abuts against the housing; one end of the spring is fixedly connected to the active block, and the other end of the spring is fixedly connected to the driven block; the active block abuts against the template assembly;

[0015] Furthermore, steps for limiting the position of the template assembly are fixedly installed at the lower ends of the left and right side walls of the template fixing groove, the steps are connected to the template assembly, and the steps are fixedly connected to the template placement frame;

[0016] Furthermore, the template assembly includes an upper template, a lower template, guide rods and compression springs, the upper template and the lower template are both slidably connected to the template placement frame; a plurality of molds corresponding to each other are fixedly installed on the lower end of the upper template and the upper end of the lower template; four guide rods are fixedly connected to the four corners of the lower template, and the four guide rods are slidably connected to the upper template; each guide rod is sleeved with a compression spring; the upper end of the compression spring abuts against the lower end of the upper template, the lower end of the compression spring abuts against the lower template, the upper ends of the left and right sides of the lower template abut against the steps, and the front side of the upper template abuts against the active baffle;

[0017] Furthermore, the positioning mechanism includes a positioning cylinder, a positioning shaft, a cylinder placement groove and a positioning assembly; a cylinder placement groove is opened at the upper end of the processing table, the positioning cylinder is fixedly connected to the processing table in the cylinder placement groove, and the positioning cylinder driving end is fixedly connected to the positioning shaft; the processing table, the upper template and the lower template are all connected to the positioning assembly, and the processing table, the upper template and the lower template are all slidably connected to the positioning shaft;

[0018] Furthermore, the positioning assembly includes positioning hole one and positioning hole two; the processing table is provided with positioning hole two directly above the positioning shaft, and the upper template and the lower template are both provided with positioning hole one at the front end; the positioning shaft is slidingly connected to the processing table, the upper template and the lower template through positioning hole two and positioning hole one respectively.

[0019] Compared with the existing technology, the present invention has the following beneficial effects: 1. It can realize the rapid replacement of the template components of the working position, thus reducing the waste of time;

[0020] 2. While the punching device 2 is processing the workpiece, the template assembly that will not be used again after the workpiece has been processed is replaced with the template assembly that is about to be used, thereby saving working time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0022] Figure 1 This utility model is a three-dimensional rapid replacement molding die for sheet metal processing Figure 1 ;

[0023] Figure 2 This is a front view of a quick-change forming die for sheet metal processing according to the present invention;

[0024] Figure 3 This utility model is a local three-dimensional quick-change forming mold for sheet metal processing Figure 1 ;

[0025] Figure 4 This utility model is a local three-dimensional quick-change forming mold for sheet metal processing Figure 2 ;

[0026] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 6 for Figure 3Enlarged view of point B in the middle.

[0028] The numbers in the figure represent:

[0029] 1. Processing table; 2. Stamping device; 3. Quick mold change mechanism; 31. Limit drive assembly; 311. Transverse cylinder; 312. Limit roller; 313. Conveyor roller; 32. Template placement rack; 33. Template fixing groove; 34. Template blocking assembly; 341. Active baffle; 342. Driven baffle; 343. Spring; 344. Baffle limiting shaft; 345. Housing; 346. Baffle rotating shaft; 35. Step; 4. Template assembly; 41. Upper template; 42. Lower template; 43. Guide rod; 44. Compression spring; 5. Positioning mechanism; 51. Positioning cylinder; 52. Positioning shaft; 53. Positioning hole 2; 54. Cylinder placement groove; 55. Positioning hole 1. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0031] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0032] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figures 1-6 , a quick-change forming die for sheet metal processing, comprising a processing table 1;

[0033] The upper end of the processing table 1 is connected to a punching device 2 for punching the mold;

[0034] A quick die-changing mechanism 3 for quickly replacing the stamping die is installed on the upper end of the processing table 1;

[0035] The quick mold change mechanism 3 includes a limit drive assembly 31, a template placement frame 32, a template fixing groove 33 and a template blocking assembly 34; the limit drive assembly 31 is connected to the template placement frame 32; the template placement frame 32 is provided with three template fixing grooves 33 for fixing the template assembly 4, and the template fixing grooves 33 are evenly distributed along the length direction of the template placement frame 32 at equal intervals; the template placement frame 32 is installed with three groups of template blocking assemblies 34 corresponding to the template fixing grooves 33 one by one;

[0036] A positioning mechanism 5 for positioning the template assembly 4 is installed on the upper end of the processing table 1;

[0037] In the present invention, three groups of template fixing grooves 33 are respectively placed with template assemblies 4 for performing different stamping on sheet metal; the position of the template assembly 4 can be fixed by the positioning mechanism 5, so that the template assembly 4 is located at the working station directly below the stamping device 2 for stamping operation; the template placement rack 32 can be pushed by the limit drive assembly 31 to move horizontally, so that different template assemblies 4 are located at the working station; when sheet metal operation is performed, the operator places the workpiece to be processed into the template assembly 4 located at the working station, and the stamping device 2 stamps the template assembly 4 at the working station to complete the workpiece processing. When the template needs to be replaced, the operator starts the limit drive assembly 31 to push the template placement rack 32 to move, and the template placement rack 32 moves to drive the template fixing groove 33 that fixes the template assembly 4 to be used to work directly below the stamping device 2. When the stamping device 2 is working, the operator can replace the template assembly 4 that has completed the processing of the corresponding workpiece outside the stamping device 2, and fix the newly replaced template with the template fixing groove 33 and the template blocking assembly 34;

[0038] The utility model can realize the rapid replacement of the template assembly 4 of the working position, reducing the waste of time; it can also realize that while the punching device 2 is processing the workpiece, the template assembly 4 that has been processed and is no longer in use can be replaced with the template assembly 4 that is about to be used, saving working time.

[0039] The limit drive assembly 31 includes a transverse cylinder 311, a limit roller 312 and a conveying roller 313; the transverse cylinder 311 is fixedly connected to the right end of the processing table 1, and the driving end of the transverse cylinder 311 is fixedly connected to the template placement frame 32. A plurality of limit rollers 312 are rotatably installed on the upper end of the processing table 1. The limit rollers 312 are located at the front and rear sides of the template placement frame 32 and are in rolling connection with the template placement frame 32; a plurality of conveying rollers 313 are installed at the left and right ends of the processing table 1, and the conveying rollers 313 are rotatably connected to the front and rear ends of the processing table 1, and the conveying rollers 313 are in rolling connection with the template placement frame 32;

[0040] The template blocking assembly 34 includes an active block piece 341, a driven block piece 342, a spring 343, a block piece limiting shaft 344, a shell 345 and a block piece rotating shaft 346; the front end of the template placement frame 32 is fixedly connected to the shell 345, and the template placement frame 32 is fixedly connected to a block piece rotating shaft 346 above the shell 345; the template placement frame 32 is fixedly connected to two block piece limiting shafts 344 on the left and right sides above the block piece rotating shaft 346; the active block piece 341 and the driven block piece 342 are both rotatably connected to the block piece rotating shaft 346, the active block piece 341 abuts against the block piece limiting shaft 344, and the driven block piece 342 abuts against the shell 345; one end of the spring 343 is fixedly connected to the active block piece 341, and the other end of the spring 343 is fixedly connected to the driven block piece 342; the active block piece 341 abuts against the template assembly 4;

[0041] The lower ends of the left and right side walls of the template fixing groove 33 are fixedly installed with steps 35 for limiting the template assembly 4. The steps 35 are connected to the template assembly 4 and are fixedly connected to the template placement frame 32.

[0042] When the operator needs to replace the template assembly 4 under the punching device 2, the transverse cylinder 311 is started, and the transverse cylinder 311 drives the template placement frame 32 to slide, and the template placement frame 32 drives the conveying roller 313 below to rotate to reduce friction; the limiting rollers 312 on the front and rear sides of the template placement frame 32 limit the template placement frame 32; the template placement frame 32 drives the template assembly 4 fixed in the template fixing groove 33 to slide, and when the required template assembly 4 is replaced to the bottom of the punching device 2, the transverse cylinder 311 stops working; when it is necessary to replace the template assembly 4 that is not directly under the punching device 2, push the template fixing groove 33 of this group to replace it. The active baffle 341 in the baffle switch assembly corresponding to the slot 33 moves to the left and abuts against the baffle limit shaft 344 on the left. At this time, the active baffle 341 drives the driven baffle 342 to rotate through the spring 343, and the driven baffle 342 abuts against the left shell 345; the driven baffle 342 pulls the active baffle 341 and the baffle limit shaft 344 to a fixed position through the spring 343; at this time, take out the template assembly 4 that needs to be replaced, push the template assembly 4 to be replaced into the template fixing slot 33, and then push the active baffle 341 to the right to abut against the baffle limit shaft 344 on the right, so that the active baffle 341 abuts against the template assembly 4 to limit it.

[0043] The template assembly 4 includes an upper template 41, a lower template 42, a guide rod 43 and a compression spring 44; the upper template 41 and the lower template 42 are both slidably connected to the template placement frame 32; a number of corresponding molds are fixedly installed at the lower end of the upper template 41 and the upper end of the lower template 42; four guide rods 43 are fixedly connected to the four corners of the lower template 42, and the four guide rods 43 are slidably connected to the upper template 41; each guide rod 43 is sleeved with a compression spring 44; the upper end of the compression spring 44 abuts against the lower end of the upper template 41, the lower end of the compression spring 44 abuts against the lower template 42, the upper ends of the left and right sides of the lower template 42 abut against the step 35, and the front side of the upper template 41 abuts against the active baffle 341.

[0044] When the mold assembly is placed in the template fixing groove 33, the upper and lower ends of the lower template 42 are abutted with the step 35 and the processing table 1, so that the lower template 42 is more stable; when the punching device 2 needs to punch the mold assembly directly below, it is first aligned with the positioning mechanism 5 using the positioning hole 1 55; the punching device 2 drives the upper template 41 to move downward under the guidance of the guide rod 43 by pressing the upper template 41 downward. The downward movement of the upper template 41 compresses the compression spring 44, so that the mold at the lower end of the upper template 41 and the mold at the upper end of the lower template 42 are close to each other to process the workpiece. When the workpiece is processed, the punching device 2 is lifted, and the compression spring 44 is reset to drive the upper template 41 to reset the processed workpiece.

[0045] The utility model can realize the punching process of the workpiece.

[0046] The positioning mechanism 5 includes a positioning cylinder 51, a positioning shaft 52, a second positioning hole 53, a cylinder placement groove 54 and a first positioning hole 55; a cylinder placement groove 54 is provided at the upper end of the processing table 1, the positioning cylinder 51 is fixedly connected to the processing table 1 in the cylinder placement groove 54, the driving end of the positioning cylinder 51 is fixedly connected to the positioning shaft 52, the processing table 1 is provided with a second positioning hole 53 just above the positioning shaft 52, and the front ends of the upper template 41 and the lower template 42 are both provided with a first positioning hole 55; the positioning shaft 52 is slidably connected to the processing table 1, the upper template 41 and the lower template 42 through the second positioning hole 53 and the first positioning hole 55 respectively;

[0047] After the operator starts the transverse cylinder 311, the transverse cylinder 311 pushes the template placement rack 32 to move, and the template placement rack 32 drives the template assembly 4 to be used to move to the bottom of the stamping device 2. When the positioning hole 1 55 of the template assembly 4 needs to be aligned with the positioning hole 2 53, the transverse cylinder 311 stops pushing the template placement rack 32, and then the positioning cylinder 51 pushes the positioning shaft 52 to move upward through the positioning hole 1 55 and the positioning hole 2 53 to fix the upper template 41 and the lower template 42.

[0048] The utility model can realize more accurate positioning of the mold before processing the workpiece, and can prevent the upper mold plate 41 and the lower mold plate 42 from deviating during the stamping process.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A quick-change forming die for sheet metal processing, comprising a processing table (1), characterized in that: The upper end of the processing table (1) is connected to a punching device (2) for punching the mold; A quick die-changing mechanism (3) for quickly replacing a stamping die is installed on the upper end of the processing table (1); The rapid mold-changing mechanism (3) comprises a limit drive assembly (31), a template placement frame (32), a template fixing groove (33) and a template blocking assembly (34); the limit drive assembly (31) is connected to the template placement frame (32); three template fixing grooves (33) for fixing the template assembly (4) are provided on the template placement frame (32), and the template fixing grooves (33) are evenly distributed at equal intervals along the length direction of the template placement frame (32); three groups of template blocking assemblies (34) corresponding to the template fixing grooves (33) are installed on the template placement frame (32); A positioning mechanism (5) for positioning the template assembly (4) is installed on the upper end of the processing table (1).

2. The quick-change forming die for sheet metal processing according to claim 1, characterized in that: The position limiting drive assembly (31) comprises a transverse cylinder (311), a position limiting roller (312) and a conveying roller (313); the transverse cylinder (311) is fixedly connected to the right end of the processing table (1); the driving end of the transverse cylinder (311) is fixedly connected to the template placement frame (32); a plurality of position limiting rollers (312) are rotatably mounted on the upper end of the processing table (1); the position limiting rollers (312) are located at the front and rear sides of the template placement frame (32) and are roll-connected to the template placement frame (32); a plurality of conveying rollers (313) are mounted on the left and right ends of the processing table (1); the conveying rollers (313) are rotatably connected to the front and rear ends of the processing table (1), and the conveying rollers (313) are roll-connected to the template placement frame (32).

3. The quick-change forming die for sheet metal processing according to claim 2, characterized in that: The traverse cylinder (311) is a double-stroke cylinder.

4. The quick-change forming die for sheet metal processing according to claim 3, characterized in that: The template blocking assembly (34) includes an active blocking piece (341), a driven blocking piece (342), a spring (343), a blocking piece limiting shaft (344), a shell (345) and a blocking piece rotating shaft (346); the front end of the template placement frame (32) is fixedly connected to the shell (345), and the template placement frame (32) is fixedly connected to the blocking piece rotating shaft (346) above the shell (345); the template placement frame (32) is fixedly connected to the left and right sides above the blocking piece rotating shaft (346) There are two baffle limiting shafts (344); the active baffle (341) and the driven baffle (342) are both rotatably connected to the baffle rotating shaft (346); the active baffle (341) abuts against the baffle limiting shaft (344), and the driven baffle (342) abuts against the housing (345); one end of the spring (343) is fixedly connected to the active baffle (341), and the other end of the spring (343) is fixedly connected to the driven baffle (342); the active baffle (341) abuts against the template assembly (4).

5. The quick-change forming die for sheet metal processing according to claim 4, characterized in that: Steps (35) for limiting the position of the template assembly (4) are fixedly installed at the lower ends of the left and right side walls of the template fixing groove (33). The steps (35) are connected to the template assembly (4), and the steps (35) are fixedly connected to the template placement frame (32).

6. The quick-change forming die for sheet metal processing according to claim 5, characterized in that: The template assembly (4) comprises an upper template (41), a lower template (42), a guide rod (43) and a compression spring (44); the upper template (41) and the lower template (42) are both slidably connected to the template placement frame (32); a plurality of molds corresponding to each other are fixedly installed at the lower end of the upper template (41) and the upper end of the lower template (42); four guide rods (43) are fixedly connected to the four corners of the lower template (42), and the four guide rods (43) are slidably connected to the upper template (41); a compression spring (44) is sleeved on each guide rod (43); the upper end of the compression spring (44) abuts against the lower end of the upper template (41), the lower end of the compression spring (44) abuts against the lower template (42), the upper ends of the left and right sides of the lower template (42) abut against the step (35), and the front side of the upper template (41) abuts against the active blocking piece (341).

7. The quick-change forming die for sheet metal processing according to claim 6, characterized in that: The positioning mechanism (5) comprises a positioning cylinder (51), a positioning shaft (52), a cylinder placement groove (54) and a positioning assembly; a cylinder placement groove (54) is provided at the upper end of the processing table (1); the positioning cylinder (51) is fixedly connected to the processing table (1) in the cylinder placement groove (54); a driving end of the positioning cylinder (51) is fixedly connected to the positioning shaft (52); the processing table (1), the upper template (41) and the lower template (42) are all connected to the positioning assembly; the processing table (1), the upper template (41) and the lower template (42) are all slidably connected to the positioning shaft (52).

8. The quick-change forming die for sheet metal processing according to claim 7, characterized in that: The positioning assembly includes a first positioning hole (55) and a second positioning hole (53); the processing table (1) is provided with a second positioning hole (53) directly above the positioning shaft (52); the front ends of the upper template (41) and the lower template (42) are both provided with a first positioning hole (55); the positioning shaft (52) is slidably connected to the processing table (1), the upper template (41) and the lower template (42) through the second positioning hole (53) and the first positioning hole (55).

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