Workpiece positioning device for stamping

Abstract

The utility model discloses a workpiece positioning device for stamping, and belongs to the technical field of stamping positioning devices. The positioning mechanism is arranged on the lower die holder; the auxiliary mechanism is arranged on the positioning mechanism; the positioning mechanism comprises a positioning bottom plate fixedly mounted at the top of the lower die holder; the positioning pressing plate is slidably connected to the outer wall of the lower die base; the first positioning column is arranged at the top of the positioning bottom plate in a rotating mode and is made of a friction-resistant material; the angle adjusting assembly is arranged on the first positioning column; and the second positioning column is rotationally installed at the top of the positioning bottom plate, four first limiting grooves and four second limiting grooves are formed in the outer wall of the first positioning column and distributed in an equal-arc state, the four second limiting grooves are in an inclined state which is sequentially lowered from top to bottom, and the four first limiting grooves are in a vertical state. By arranging the positioning mechanism, equidistant movement of products can be achieved, the waste rate is reduced, and the product utilization rate is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch positioning device technical field, concretely relates to a workpiece positioning device for punch processing. BACKGROUND

[0002] When the product is punched, the punch die is used, and the positioning device is an indispensable part of the punch die.

[0003] The existing die sets the limiting post on the lower die to position the product, and can only play a limiting role. When the long product is continuously punched, that is, the required workpiece is punched out at multiple positions of the product, after the product is processed at one position, the worker needs to hold the product and push the unprocessed surface of the product to the punching position. This requires the worker to operate according to experience, and it is impossible to ensure that the distance pushed in each time is the same. This will increase the waste rate or cause the risk of reducing the utilization rate of the product.

[0004] Based on this, the utility model designs a workpiece positioning device for punch processing to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the above shortcomings of the prior art, the utility model provides a workpiece positioning device for punch processing.

[0006] To achieve the above purpose, the utility model is realized by the following technical schemes:

[0007] The utility model provides a workpiece positioning device for stamping, which comprises a lower die seat, a positioning mechanism arranged on the lower die seat, and an auxiliary mechanism arranged on the positioning mechanism, wherein the positioning mechanism comprises a positioning base plate fixedly installed on the top of the lower die seat, a positioning pressing plate slidingly connected to the outer wall of the lower die seat, a positioning column one arranged on the top of the positioning base plate in a rotating manner, the positioning column one being made of a friction-resistant material, an angle adjusting assembly arranged on the positioning column one, a positioning column two rotatably installed on the top of the positioning base plate, four sets of limiting grooves one and four sets of limiting grooves two formed in the outer wall of the positioning column one, the four sets of limiting grooves two and the four sets of limiting grooves one being distributed in an equi-circular arc state, the four sets of limiting grooves two being inclined from top to bottom, the four sets of limiting grooves one being vertical, the four sets of limiting grooves two being mutually penetrated with the interiors of the adjacent two limiting grooves one, the angle adjusting assembly comprising an extension assembly arranged in the interior of one set of limiting grooves one, four sets of limiting blocks arranged on the wall surface near the axis of the positioning column one of the four sets of limiting grooves one, the upper wall surface of the four sets of limiting blocks being inclined, the four sets of inclined wall surfaces being inclined from top to bottom, the wall surface near the axis of the positioning column one of the four sets of limiting grooves one being divided into a vertical surface part and an inclined surface part, the inclined surface part being located on the upper side of the vertical surface part, the four sets of inclined surface parts being inclined from top to bottom, the four sets of limiting blocks being fixedly installed on the wall surface of the vertical surface part of the corresponding limiting groove one, the top of the positioning pressing plate being fixedly provided with two sets of limiting sleeves, the two sets of limiting sleeves being slidingly connected with the positioning column two and the positioning column one respectively, the extension assembly and the inner wall of the corresponding limiting sleeve being arranged together, the lower die seat, the positioning base plate, and the top wall surface of the positioning pressing plate being provided with through grooves, and the three sets of through grooves being mutually corresponding.

[0008] Furthermore, the auxiliary mechanism comprises two sets of fixing frames fixedly installed on the top of the positioning base plate, the two sets of fixing frames being respectively located on the left and right sides of the lower die seat, limiting rollers rotatably installed in the interiors of the two sets of fixing frames, transmission shafts fixedly installed on the front wall surfaces of the two sets of limiting rollers, the two sets of transmission shafts being rotatably connected with the front inner wall surfaces of the same set of fixing frames, the outer walls of the two sets of transmission shafts extending into the interiors of the same set of fixing frames, and transmission rods one rotatably installed on the top of the cavities in the two sets of fixing frames.

[0009] Furthermore, the auxiliary mechanism comprises two sets of fixing frames fixedly installed on the top of the positioning base plate, the two sets of fixing frames being respectively located on the left and right sides of the lower die seat, limiting rollers rotatably installed in the interiors of the two sets of fixing frames, transmission shafts fixedly installed on the front wall surfaces of the two sets of limiting rollers, the two sets of transmission shafts being rotatably connected with the front inner wall surfaces of the same set of fixing frames, the outer walls of the two sets of transmission shafts extending into the interiors of the same set of fixing frames, and transmission rods one rotatably installed on the top of the cavities in the two sets of fixing frames.

[0010] Furthermore, the same side two sets of the bevel gears one are meshingly connected together, the outer wall of the connecting rotating rod is rotatably connected with the top of the positioning base plate, and the three sets of bevel gears three are meshingly connected with the corresponding bevel gears two. Furthermore, the same side two sets of the bevel gears one are meshingly connected together, the outer wall of the connecting rotating rod is rotatably connected with the top of the positioning base plate, and the three sets of bevel gears three are meshingly connected with the corresponding bevel gears two.

[0011] Furthermore, the telescopic assembly includes a limiting pin slidably connected inside the limiting groove; a limiting plate slidably connected inside the limiting pin; and a limiting slide rod fixedly installed on the wall surface of the limiting plate near the axial center of the positioning post, the outer wall of the limiting slide rod movably penetrating the wall surface of the limiting pin near the axial center of the positioning post.

[0012] Furthermore, a rotating ring is rotatably installed on the inner wall of the limiting sleeve, and a limiting pin is rotatably connected to the inner wall of the rotating ring. The limiting pin rotates around its axis, and the interiors of the limiting plate and the limiting pin are mutually adapted. The limiting slide rod is slidably connected to the wall surface of the limiting pin near the center of the positioning column.

[0013] Furthermore, the telescopic assembly also includes a ball bearing rotatably mounted on the wall surface of the limiting slide rod near the axial center of the positioning post; and a spring fixedly mounted on the inner wall surface of the limiting plate and the limiting pin near the wall surface.

[0014] Furthermore, the ball rolls into contact with the outer wall of the limiting slide rod away from the wall of the inclined surface portion of the limiting groove, and the limiting slide rod is slidably connected to the spring.

[0015] Compared with the prior art, the advantages of this utility model are as follows: 1. By setting a positioning mechanism, the product can move at equal distances, reducing the waste rate and improving the product utilization rate.

[0016] 2. By setting auxiliary mechanisms, the stability of product transportation can be improved, and automatic feeding can be realized, which improves the degree of automation and facilitates the use of the device. By setting ball bearings, the wear between the limit slide bar and the limit groove can be reduced, and the movement can be made smoother. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a left perspective view of the entire utility model;

[0019] Figure 2 This is a front view of the entire utility model;

[0020] Figure 3 This is a perspective view of the entire utility model from the right side.

[0021] Figure 4 This is a sectional perspective view of the limiting sleeve of this utility model;

[0022] Figure 5 This is a sectional perspective view of the limiting pin of this utility model;

[0023] Figure 6 This is a sectional perspective view of the positioning base plate of this utility model.

[0024] The labels in the diagram represent:

[0025] 1. Lower mold base; 2. Positioning mechanism; 21. Positioning base plate; 22. Positioning pressure plate; 23. Positioning pin one; 24. Angle adjustment assembly; 241. Limiting groove one; 242. Telescopic assembly; 2421. Limiting pin; 2422. Limiting plate; 2423. Spring; 2425. Limiting slide rod; 2426. Ball bearing; 243. Limiting stop block; 244. Limiting groove two; 25. Limiting sleeve; 26. Positioning pin two; 3. Auxiliary mechanism; 31. Fixing frame; 32. Limiting roller; 33. Drive shaft; 34. Bevel gear one; 35. Drive rod one; 36. Bevel gear two; 37. Drive rod two; 38. Bevel gear three; 4. Connecting rotating rod; 5. Rotating ring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0028] The present invention will be further described below with reference to the embodiments.

[0029] Example 1: Please refer to the accompanying drawings in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6The system includes a lower mold base 1; a positioning mechanism 2 mounted on the lower mold base 1; and an auxiliary mechanism 3 mounted on the positioning mechanism 2. The positioning mechanism 2 includes a positioning base plate 21 fixedly mounted on the top of the lower mold base 1; a positioning pressure plate 22 slidably connected to the outer wall of the lower mold base 1; a positioning post 23 mounted on the top of the positioning base plate 21 by rotation, the positioning post 23 being made of a friction-resistant material; an angle adjustment component 24 mounted on the positioning post 23; and a positioning post 26 rotatably mounted on the top of the positioning base plate 21. The outer wall of the positioning post 23 has four sets of limiting grooves 241 and four sets of limiting grooves 244. The four sets of limiting grooves 244 and the four sets of limiting grooves 241 are all distributed in an equal arc state. The four sets of limiting grooves 244 are all inclined from top to bottom, and the four sets of limiting grooves 241 are all vertical. The four sets of limiting grooves 244 are all interconnected with the interior of the adjacent two sets of limiting grooves 241. The angle adjustment component 24 includes a limiting post 26 mounted on one of the limiting grooves. The telescopic component 242 is located inside the slot 241; limiting blocks 243 are installed on the walls of the four sets of limiting slots 241 near the axis of the positioning post 23. The upper walls of the four sets of limiting blocks 243 are inclined surfaces, and the four inclined surfaces are inclined in a descending order from top to bottom. The walls of the four sets of limiting slots 241 near the axis of the positioning post 23 are divided into vertical and inclined surfaces. The inclined surfaces are all located on the upper side of the vertical surfaces. The four inclined surfaces are inclined in a descending order from top to bottom. In the lowered tilt state, all four sets of limit blocks 243 are fixedly installed on the wall of the vertical part of the corresponding limit groove 241. Two sets of limit sleeves 25 are fixedly installed on the top of the positioning pressure plate 22. The two sets of limit sleeves 25 are slidably connected to the positioning post 26 and the positioning post 23 respectively. The telescopic component 242 and the inner wall of the corresponding limit sleeve 25 are set together. The top wall of the lower mold base 1, the positioning base plate 21 and the positioning pressure plate 22 are provided with through grooves, and the three sets of through grooves correspond to each other.

[0030] In practical use, the product is inserted from the left side of the lower mold base 1 into the space between the positioning base plate 21 and the positioning pressure plate 22, and placed between the positioning base plate 21 and the second positioning post 26. The positioning base plate 21 and the second positioning post 26 limit the product. Then, the positioning pressure plate 22 is moved downward and fits against the top of the product. During this process, the limiting sleeve 25, carrying the telescopic component 242, moves downward along the inside of the first limiting groove 241. The telescopic component 242 first moves along the inclined surface of the first limiting groove 241, where it is compressed. Then, it moves through the vertical surface of the first limiting groove 241 to the inclined surface of the limiting stop 243. The telescopic component 242 continues to move downward along the inclined surface of the limiting stop 243 to the inside of the second limiting groove 244. At this point, the telescopic component 242 is released from the external force. The product begins to extend to its initial state. At this time, the lower side wall of the limiting block 243 limits and blocks the telescopic component 242. After the punching head punches the product through the through groove, the positioning plate 22 can return to its original position facing upward. During this process, due to the limiting block 243, the telescopic component 242 can only move upward along the inside of the limiting groove 244. The telescopic component 242 will exert a squeezing force on the wall of the limiting groove 244. The force generated will cause the positioning post 23 to rotate clockwise (based on the top view). Due to the friction between the positioning post 26 and the positioning post 23 on the product, the product will move to the right a certain distance, moving the unprocessed surface of the product to the position of the through groove. Since the length of the limiting groove 244 is constant, the product can be displaced the same distance each time, reducing the scrap rate and improving the product utilization rate.

[0031] Example 2: Based on Example 1, please refer to the accompanying drawings in the specification. Figure 1 - Figure 6The auxiliary mechanism 3 includes two sets of fixing frames 31 fixedly installed on the top of the positioning base plate 21, with the two sets of fixing frames 31 located on the left and right sides of the lower mold base 1 respectively; limiting rollers 32 rotatably installed inside the two sets of fixing frames 31; transmission shafts 33 fixedly installed on the front side wall of the two sets of limiting rollers 32, with both sets of transmission shafts 33 rotatably connected to the front inner wall of the same set of fixing frames 31, and the outer walls of both sets of transmission shafts 33 extending into the interior of the same set of fixing frames 31; and transmission rods 35 rotatably installed on the top of the cavity of the two sets of fixing frames 31, with the outer walls of both sets of transmission rods 35 extending into the interior of the positioning base plate 21; and fixed... A bevel gear 34 is installed on the outer wall of two sets of transmission rods 35 and two sets of transmission shafts 33, and the two sets of bevel gears 34 on the same side are meshed together; a transmission rod 37 is rotatably installed inside the positioning base plate 21, and a connecting rod 4 is fixedly installed on the positioning column 23, and the outer wall of the connecting rod 4 is rotatably connected to the top of the positioning base plate 21; a bevel gear 36 is fixedly installed on the connecting rod 4 and the outer wall of the two sets of transmission rods 35; three sets of bevel gears 38 are fixedly installed on the outer wall of the transmission rod 37, and the three sets of bevel gears 38 are all meshed together with the corresponding bevel gears 36.

[0032] The telescopic assembly 242 includes a limiting pin 2421 slidably connected inside the limiting groove 241; a rotating ring 5 is rotatably mounted on the inner wall of the limiting sleeve 25; the limiting pin 2421 is rotatably connected to the inner wall of the rotating ring 5; the limiting pin 2421 rotates around its axis; a limiting plate 2422 slidably connected inside the limiting pin 2421; the limiting plate 2422 and the limiting pin 2421 are mutually adapted; and a limiting slide rod 2425 is fixedly installed on the wall surface of the limiting plate 2422 near the axis of the positioning post 23; the outer wall of the limiting slide rod 2425 movably penetrates the wall surface of the limiting pin 2421 near the axis of the positioning post 23; and the limiting slide rod 2425 is slidably connected to the wall surface of the limiting pin 2421 near the axis of the positioning post 23.

[0033] The telescopic assembly 242 also includes a ball bearing 2426 rotatably mounted on the wall surface of the limiting slide bar 2425 near the axial center of the positioning pin 23. The ball bearing 2426 rolls in contact with the wall surface of the inclined portion of the limiting groove 241 away from the outer wall of the limiting slide bar 2425. A spring 2423 is fixedly mounted on the inner wall of the limiting plate 2422 and the limiting pin 2421 near the wall surface. The limiting slide bar 2425 is slidably connected to the spring 2423.

[0034] In practical use, when the limiting pin 2421 moves downward along the inside of the limiting groove 241, the ball 2426 moves along the inclined surface of the limiting groove 241. The limiting slide rod 2425, under force, moves the limiting plate 2422 away from the ball 2426, and the spring 2423 is stretched. When the limiting pin 2421 moves to the telescopic component 242, due to the release of external force, the spring 2423 contracts, bringing the limiting plate 2422 and the limiting slide rod 2425 back to their original state. The ball 2426 reduces the friction between the limiting slide rod 2425 and the limiting groove 241. Since the limiting pin 2421 is rotatably mounted on the limiting sleeve 25, the friction between the limiting pin 2421 and the limiting groove 241 is reduced, making the movement smoother and reducing frictional loss. Before placing the product, the product can be passed through the left limiting roller 32 and the positioning base plate. The position between 21 can limit and stabilize the product, improving the stability of product processing. In addition, when the positioning column 23 rotates, the connecting rod 4 will drive the bevel gear 36 on it to rotate. With the cooperation of the right bevel gear 38, the transmission rod 37 rotates. With the cooperation of the two sets of bevel gears 38 and 36 on the left and right, the two sets of transmission rods 35 rotate. With the cooperation of the two sets of bevel gears 34 on the same side, the two sets of transmission shafts 33 drive the two sets of limiting rollers 32 to rotate synchronously and in the same direction. That is, while the positioning column 26 and positioning column 23 rotate, the left limiting roller 32 can assist the product to move to the right, improving the stability of product transportation. In addition, the processed end of the product will move to the position between the right limiting roller 32 and the positioning base plate 21. Under the continuous processing of multiple sets of products, the automatic unloading function can be realized, which facilitates the use of the device and improves the degree of automation.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A workpiece positioning device for stamping, comprising a lower die base (1), characterized in that: A positioning mechanism (2) is provided on the lower mold base (1); an auxiliary mechanism (3) is provided on the positioning mechanism (2); The positioning mechanism (2) includes a positioning base plate (21) fixedly installed on the top of the lower mold base (1); a positioning pressure plate (22) slidably connected to the outer wall of the lower mold base (1); a positioning post one (23) set on the top of the positioning base plate (21) by rotation; an angle adjustment component (24) set on the positioning post one (23); and a positioning post two (26) rotatably installed on the top of the positioning base plate (21). The outer wall of the positioning post 1 (23) is provided with four sets of limiting groove 1 (241) and four sets of limiting groove 2 (244). The four sets of limiting groove 2 (244) and the four sets of limiting groove 1 (241) are all distributed in an equal arc state. The four sets of limiting groove 2 (244) are all inclined in a downward slope from top to bottom. The four sets of limiting groove 1 (241) are all vertical. The four sets of limiting groove 2 (244) are all interconnected with the interior of the adjacent two sides of limiting groove 1 (241). The angle adjustment component (24) includes a telescopic component (242) installed inside one of the limiting grooves (241); and limiting blocks (243) installed on the axial wall of the four limiting grooves (241) near the positioning post (23). The upper side wall of the four limiting blocks (243) is an inclined surface, and the four inclined surfaces are all inclined in a state that decreases from top to bottom. The walls of the four sets of limiting grooves (241) near the axis of the positioning post (23) are divided into vertical and inclined sections. The inclined sections are all located on the upper side of the vertical sections. The four sets of inclined sections are inclined in a downward-sloping manner from top to bottom. The four sets of limiting blocks (243) are fixedly installed on the wall of the vertical section of the corresponding limiting groove (241). Two sets of limiting sleeves (25) are fixedly installed on the top of the positioning pressure plate (22). The two sets of limiting sleeves (25) are slidably connected to the second positioning post (26) and the first positioning post (23) respectively. The inner wall of the telescopic component (242) and the corresponding limiting sleeve (25) are set together. The top wall of the lower mold base (1), the positioning base plate (21) and the positioning pressure plate (22) are provided with through grooves, and the three sets of through grooves correspond to each other.

2. The workpiece positioning device for stamping according to claim 1, characterized in that, The auxiliary mechanism (3) includes two sets of fixed frames (31) fixedly installed on the top of the positioning base plate (21), the two sets of fixed frames (31) being located on the left and right sides of the lower mold base (1); a limiting roller (32) rotatably installed inside the two sets of fixed frames (31); a transmission shaft (33) fixedly installed on the front side wall of the two sets of limiting rollers (32), the two sets of transmission shafts (33) being rotatably connected to the front inner wall of the same set of fixed frames (31), the outer walls of the two sets of transmission shafts (33) extending into the interior of the same set of fixed frames (31); and a transmission rod (35) rotatably installed on the top of the cavity of the two sets of fixed frames (31), the outer walls of the two sets of transmission rods (35) extending into the interior of the positioning base plate (21).

3. The workpiece positioning device for stamping according to claim 2, characterized in that, The bevel gear 1 (34) is fixedly installed on the outer walls of the two sets of transmission rods 1 (35) and the two sets of transmission shafts (33); the transmission rod 2 (37) is rotatably installed inside the positioning base plate (21); the connecting rotating rod (4) is fixedly installed on the positioning column 1 (23); the bevel gear 2 (36) is fixedly installed on the outer walls of the connecting rotating rod (4) and the two sets of transmission rods 1 (35); and the three sets of bevel gears 3 (38) are fixedly installed on the outer wall of the transmission rod 2 (37).

4. The workpiece positioning device for stamping according to claim 3, characterized in that, The two sets of bevel gears (34) on the same side are meshed together, the outer wall of the connecting rod (4) is rotatably connected to the top of the positioning base plate (21), and the three sets of bevel gears (38) are meshed together with the corresponding bevel gears (36).

5. The workpiece positioning device for stamping according to claim 1, characterized in that, The telescopic assembly (242) includes a limiting pin (2421) slidably connected inside the limiting groove (241); a limiting plate (2422) slidably connected inside the limiting pin (2421); and a limiting slide rod (2425) fixedly installed on the wall of the limiting plate (2422) near the axis of the positioning post (23), the outer wall of the limiting slide rod (2425) movably penetrating the wall of the limiting pin (2421) near the axis of the positioning post (23).

6. The workpiece positioning device for stamping according to claim 5, characterized in that, The inner wall of the limiting sleeve (25) is rotatably mounted with a rotating ring (5), and the limiting pin (2421) is rotatably connected to the inner wall of the rotating ring (5). The limiting pin (2421) rotates around its axis. The interior of the limiting plate (2422) and the limiting pin (2421) are mutually adapted. The limiting slide rod (2425) and the limiting pin (2421) are slidably connected to the wall surface near the axis of the positioning post (23).

7. The workpiece positioning device for stamping according to claim 6, characterized in that, The telescopic assembly (242) also includes a ball (2426) rotatably mounted on the wall of the limiting slide bar (2425) near the axial center of the positioning post (23); and a spring (2423) fixedly mounted on the inner wall of the limiting plate (2422) and the limiting pin (2421) near the wall.

8. The workpiece positioning device for stamping according to claim 7, characterized in that, The ball (2426) rolls in contact with the outer wall of the limiting slide bar (2425) and the inclined surface of the limiting groove (241), while the limiting slide bar (2425) is slidably connected to the spring (2423).

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