An adjustable bending press die

Abstract

The utility model discloses an adjustable bending punch die relates to punch die technical field, including upper die assembly and with the lower die assembly of opposite arrangement of upper die assembly, the upper die assembly includes the upper die plate and the bending punch head of detachable fixed connection in the lower end surface of upper die plate, the lower die assembly includes the lower die plate and the punch base of detachable fixed connection in the upper end surface of lower die plate, the punch base is opened with the bending punch head of adaptation's bending punch groove along its upper end surface, the left and right sides of punch base and corresponding bending punch groove, respectively install a set of positioning assembly, and every set positioning assembly all includes connecting piece and locking piece, the connecting piece includes the positioning end in the upper end, the adjusting end in the lower end and the connecting end integrally connected between the positioning end and adjusting end, the punch base is provided with the sliding slot along its upper end surface, can flexible adaptation different length specification workpiece.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically to an adjustable bending stamping die. Background Technology

[0002] In the field of sheet metal bending, stamping dies are key equipment for achieving efficient forming. Traditional bending dies typically consist of upper and lower dies that work together. The upper die's punch head interacts with the lower die's forming groove, causing the workpiece to undergo plastic deformation under pressure to obtain the desired bending angle.

[0003] However, the positioning structure of existing bending dies is mostly fixed, meaning that the component used to define the workpiece position is rigidly connected to the lower die body. When processing workpieces of different sizes (especially those with differences in length), the entire positioning component or even the lower die needs to be replaced, which not only increases the cost of spare parts for the die but also reduces production efficiency due to frequent die changes.

[0004] While some improved molds have attempted to adopt adjustable positioning structures, the adjustment methods mostly rely on direct bolt tightening or simple slider cooperation, resulting in insufficient adjustment accuracy and poor positioning stability after locking. During the stamping process, the workpiece is prone to displacement due to loose positioning, leading to excessive bending dimensional errors and affecting the product qualification rate. At the same time, the adjustment operation often requires repeated adjustments with additional tools, and the ease of operation needs to be improved.

[0005] Therefore, how to design a bending and stamping die with a positioning structure that can be flexibly adjusted to adapt to various workpiece length specifications, and which has strong stability and is easy to operate after adjustment has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] An adjustable bending and stamping die includes an upper die assembly and a lower die assembly disposed opposite to the upper die assembly; The upper die assembly includes an upper die plate and a bending stamping head that is detachably and fixedly connected to the lower end face of the upper die plate. The lower die assembly includes a lower die plate and a stamping base that is detachably and fixedly connected to the upper end face of the lower die plate. The stamping base has a bending stamping groove adapted to the bending stamping head along its upper end face. On the stamping base and on the left and right sides corresponding to the bending stamping groove, a set of positioning components is installed respectively. Each set of positioning components includes a connector and a locking component. The connector includes a positioning end at the upper end, an adjustment end at the lower end, and a connecting end integrally connected between the positioning end and the adjustment end. A sliding groove is provided along an upper end face of the stamping base, and the positioning end is slidably embedded in the sliding groove, so that a positioning groove for positioning a workpiece is formed between the positioning ends of the two sets of positioning assemblies; A waist-shaped hole is formed on the adjusting end, a thread groove corresponding to the waist-shaped hole is formed on a side wall of the stamping base, and an external thread section of the locking member passes through the waist-shaped hole and is in screw connection with the thread groove, so as to lock the position of the connecting member in the sliding groove.

[0008] As a further solution of the utility model: the bending stamping groove is located between the two sliding grooves, the bending stamping groove is communicated with the sliding grooves on both sides, and is concaved toward an inner side of the stamping base relative to the sliding grooves.

[0009] As a further solution of the utility model: guide grooves are concavely provided on inner walls of two sides of the sliding groove, guide arms adapted to the guide grooves are convexly provided on outer walls of two sides of the positioning end, and the guide arms are slidably embedded in the guide grooves to form a sliding guide fit.

[0010] As a further solution of the utility model: the positioning end, the connecting end and the adjusting end are sequentially connected to form a "匚"-shaped structure.

[0011] As a further solution of the utility model: a positioning groove for limiting a side edge of the workpiece is concavely provided on a side of the positioning end away from the connecting end, and an extension direction of the positioning groove is consistent with a length direction of the positioning groove.

[0012] As a further solution of the utility model: the locking member is a bolt, a head diameter of the bolt is larger than a width of the waist-shaped hole, and an elastic gasket is sandwiched between the head and an outer wall of the adjusting end.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: The utility model, through the slidably adjustable positioning assembly and the matched guide structure, can flexibly adapt to workpieces of different length specifications, no need for frequent replacement of mold parts, effectively reduces spare part cost and improves production efficiency; meanwhile, by means of the locking fit of the bolt and the elastic gasket and the limiting effect of the positioning groove, it ensures stable workpiece positioning and high bending precision, and the overall structure is simple in adjustment operation, which solves the problems of poor adaptability, insufficient stability and cumbersome operation of traditional molds.

[0014] Additional aspects and advantages of the utility model will be partially given in the following description, and partially become apparent from the following description, or can be learned through practice of the utility model. Description of Drawings

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the lower template, stamping base and positioning components in this utility model. Figure 3 This is a cross-sectional structural diagram of the lower template and positioning components in this utility model.

[0017] The reference numerals and names in the figure are as follows: 1. Upper template; 2. Bending stamping head; 3. Lower template; 4. Stamping base; 5. Bending stamping groove; 6. Connecting part; 7. Locking part; 8. Positioning end; 9. Adjusting end; 10. Connecting end; 11. Slide groove; 12. Waist-shaped hole; 13. Guide groove; 14. Guide arm; 15. Positioning groove; 16. Positioning slot. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 In this embodiment of the utility model, an adjustable bending and stamping die includes an upper die assembly and a lower die assembly. The upper die assembly and the lower die assembly are arranged opposite to each other, and the two cooperate to realize the bending and stamping processing of the workpiece.

[0020] The upper die assembly comprises an upper die plate 1 and a bending stamping head 2. The bending stamping head 2 is detachably and fixedly connected to the lower end face of the upper die plate 1, and the fixation can be specifically realized by means of bolt connection, so that the adapted bending stamping head 2 can be replaced according to different bending requirements. The lower die assembly comprises a lower die plate 3 and a stamping base 4. The stamping base 4 is also installed on the upper end face of the lower die plate 3 in a detachable and fixed connection mode, for example, fastened by screws, which facilitates the maintenance or replacement of the stamping base 4. A bending stamping groove 5 is provided on the upper end face of the stamping base 4, and the bending stamping groove 5 is adapted to the bending stamping head 2 of the upper die assembly. When a bending operation is performed, the bending stamping head 2 can be correspondingly embedded into the bending stamping groove 5, so as to cooperate to complete the bending processing of a workpiece placed between the bending stamping head 2 and the bending stamping groove 5.

[0021] To realize the positioning of workpieces with different length specifications, a set of positioning assemblies are respectively installed on the left and right sides of the bending stamping groove 5 corresponding to the stamping base 4, and each set of positioning assemblies is composed of a connecting piece 6 and a locking piece 7. The connecting piece 6 comprises a positioning end 8, an adjusting end 9 and a connecting end 10, wherein the positioning end 8 is located at the upper end, the adjusting end 9 is located at the lower end, the connecting end 10 is integrally connected between the positioning end 8 and the adjusting end 9, and the three are connected in sequence to form a "匚"-shaped (C-shaped) structure, which can give consideration to both the positioning function and the convenience of adjustment operation.

[0022] The stamping base 4 is provided with a sliding slot 11 along the upper end face thereof. The positioning end 8 of the connecting piece 6 is slidably embedded into the sliding slot 11. Through the relative sliding of the positioning ends 8 of the two positioning assemblies, the size of a positioning slot 16 formed between the two positioning ends can be adjusted, and the positioning slot 16 is used for positioning the workpiece during processing, ensuring the accurate position of the workpiece during bending. In order to improve the stability and guidance of the sliding of the positioning end 8, guide slots 13 are concavely provided on the inner walls of both sides of the sliding slot 11, and guide arms 14 are convexly provided on the outer walls of both sides of the positioning end 8. The guide arms 14 are adapted to the size of the guide slots 13. When the positioning end 8 slides in the sliding slot 11, the guide arms 14 can be slidably embedded into the guide slots 13, forming a stable sliding guide fit, and preventing the positioning end 8 from shifting or jamming during sliding.

[0023] The adjusting end 9 of the connector 6 has a slotted hole 12, the length of which is aligned with the sliding direction of the positioning end 8. The side wall of the stamping base 4 has a threaded groove corresponding to the slotted hole 12. The locking component 7 uses a bolt, the external thread of which passes through the slotted hole 12 and engages with the threaded groove. When the position of the positioning component needs adjustment, the bolt is loosened, allowing the connector 6 to slide along the slide groove 11. After adjustment to the appropriate position, the bolt is tightened, and the connector 6 is locked in its current position by the abutment between the bolt head and the outer wall of the adjusting end 9. The diameter of the bolt head is larger than the width of the slotted hole 12 to ensure a locking effect. Simultaneously, an elastic washer is sandwiched between the bolt head and the outer wall of the adjusting end 9. This elastic washer can undergo elastic deformation when the bolt is tightened, enhancing the reliability of the locking and preventing loosening of the bolt due to stamping vibration.

[0024] Furthermore, a positioning groove 15 is recessed on the side of the positioning end 8 away from the connecting end 10. This positioning groove 15 is used to limit the side of the workpiece when it is placed, further improving the stability of the workpiece positioning. The extending direction of the positioning groove 15 is consistent with the length direction of the positioning groove 16, ensuring that its limiting direction is adapted to the length direction of the workpiece, and preventing the workpiece from shifting along the length direction during processing.

[0025] The bending stamping groove 5 is located between the two slides 11 and is connected to the slides 11 on both sides. At the same time, the bending stamping groove 5 is recessed towards the inside of the stamping base 4 relative to the slides 11. This structural design allows the positioning groove 16 and the bending stamping groove 5 to form a continuous space. After the workpiece is positioned in the positioning groove 16, its part to be bent can naturally extend to the bending stamping groove 5, ensuring the smooth progress of the bending operation.

[0026] In summary, this utility model, through its slidable and adjustable positioning component and matching guide structure, can flexibly adapt to workpieces of different lengths and specifications, eliminating the need for frequent replacement of mold components, effectively reducing spare parts costs and improving production efficiency. At the same time, the locking fit of bolts and elastic washers, along with the limiting effect of the positioning groove 15, ensures stable workpiece positioning and high bending accuracy. Furthermore, the overall structure is easy to adjust and operate, solving the problems of poor adaptability, insufficient stability, and cumbersome operation of traditional molds.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. An adjustable bending and stamping die, characterized in that, Comprising an upper die assembly and a lower die assembly arranged opposite to the upper die assembly; The upper die assembly comprises an upper die plate and a bending stamping head detachably and fixedly connected to the lower end face of the upper die plate, the lower die assembly comprises a lower die plate and a stamping base detachably and fixedly connected to the upper end face of the lower die plate, and a bending stamping groove adapted to the bending stamping head is provided along the upper end face of the stamping base; A set of positioning assemblies are respectively installed on the stamping base at positions corresponding to the left and right sides of the bending stamping groove, and each set of positioning assemblies comprises a connecting piece and a locking piece; The connecting piece comprises a positioning end located at the upper end, an adjusting end located at the lower end, and a connecting end integrally connected between the positioning end and the adjusting end; A sliding groove is provided along the upper end face of the stamping base, and the positioning end is slidably embedded in the sliding groove, so that a positioning groove for positioning a workpiece is formed between the positioning ends of the two sets of positioning assemblies; An oblong hole is opened on the adjusting end, a thread groove corresponding to the oblong hole is opened on the side wall of the stamping base, and the external thread section of the locking piece passes through the oblong hole and is screwed with the thread groove to lock the position of the connecting piece in the sliding groove; 2. The adjustable bending and stamping die according to claim 1, characterized in that, The bending stamping groove is located between the two sliding grooves, the bending stamping groove communicates with the sliding grooves on both sides, and is recessed toward the inner side of the stamping base relative to the sliding grooves; 3. The adjustable bending and stamping die according to claim 1, characterized in that, Guide grooves are recessed on the inner walls of both sides of the sliding groove, guide arms adapted to the guide grooves are convexly provided on the outer walls of both sides of the positioning end, and the guide arms are slidably embedded in the guide grooves to form a sliding guide fit; 4. The adjustable bending and stamping die according to claim 1, characterized in that, The positioning end, the connecting end and the adjusting end are sequentially connected to form a "匚"-shaped structure; 5. An adjustable bending and stamping die according to any one of claims 1-4, characterized in that, A positioning groove for limiting the side edge of the workpiece is recessed on the side of the positioning end away from the connecting end, and the extending direction of the positioning groove is consistent with the length direction of the positioning groove; 6. An adjustable bending and stamping die according to claim 1, characterized in that, The locking member is a bolt, the diameter of the head of the bolt is larger than the width of the oblong hole, and an elastic gasket is clamped between the head and the outer wall of the adjusting end;

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