Hardware mold capable of rapidly replacing mold core

Abstract

The utility model relates to the technical field of hardware dies, in particular to a hardware die with a die core capable of being replaced quickly, which comprises a lower base, a lower die holder fixedly connected to the surface of the lower base, an upper base arranged above the lower base, an upper die holder fixedly connected to the lower portion of the upper base, and a lower die holder fixedly connected to the lower portion of the upper base. Wherein the lower die core fixed on the upper surface of the lower die holder is correspondingly matched with the upper die core fixed on the lower surface of the upper die holder. The female die is fixed through the clamping blocks of the lower die base, the male die is fixed through the clamping pieces of the upper die base, the clamping blocks are brought out through rotation of the rotating shafts by the clamping strips, the female die can be conveniently and rapidly fixed and replaced, the male die is placed between the clamping pieces, the male die is fixed between the two clamping pieces through the acting force of the springs on the clamping pieces, and therefore the female die can be conveniently and rapidly replaced. And the male die is pushed to a correct working position through the pushing assembly under the action of the positioning column, so that the male die is conveniently and quickly replaced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware moulds, in particular to a hardware mould with a mould core that can be quickly replaced. Background Art

[0002] Hardware molds are used in industrial production to make metal materials into parts or products of the required shape by various presses and special tools installed on the presses. Such special tools are collectively called hardware molds. According to different processes, they can be divided into: 1. Punching molds separate materials along closed or open contours. Such as blanking molds, punching molds, cutting molds, notching molds, trimming molds, cutting molds, etc.; 2. Bending molds make sheet blanks or other blanks bend and deform along a straight line (bending line) to obtain a workpiece with a certain angle and shape; 3. Drawing molds are molds that make sheet blanks into open hollow parts, or make hollow parts further change their shape and size; 4. Forming molds are molds that directly copy and shape blanks or semi-finished workpieces according to the shapes of convex and concave molds, and the material itself only produces local plastic deformation. Such as bulging molds, shrinking molds, expanding molds, undulating forming molds, flanging molds, shaping molds, etc.

[0003] As for the hardware mold technology, there are many existing hardware mold technologies, such as:

[0004] According to the Chinese patent application number: CN201920599836.6, specifically, a hardware mold with a mold core that can be quickly replaced relates to the technical field of hardware molds. It includes an upper fixed plate, a lower fixed plate, an upper mold, a lower mold, a convex mold sleeve, and a convex mold. The upper mold is fixedly connected to the middle position just below the upper fixed plate, the lower mold is fixedly connected to the middle position just above the lower fixed plate, a concave mold is installed in the middle position of the lower mold, a cavity is provided in the middle position of the upper mold, a positioning block is installed around the outer bottom of the convex mold sleeve, a positioning groove is provided around the upper part of the cavity, a convex imitation-shaped cavity is provided in the middle position of the convex mold sleeve, a countersunk screw hole is provided on the top of the convex mold sleeve, the convex mold is located inside the convex imitation-shaped cavity, and is fixedly connected to the inside of the convex imitation-shaped cavity by screws passing through the countersunk screw hole. It can realize the replacement of the mold core inside the hardware mold without the need to re-open the whole set of molds, saving the production cost of the mold; it can quickly realize the replacement of the mold core when abnormalities occur in the production of hardware molds, and increase production efficiency.

[0005] When the mold core is damaged, it needs to be disassembled and replaced, otherwise the processing effect will be affected. When replacing the mold core of the hardware mold, the mold core needs to be aligned with the mold core mouth to complete the replacement. Otherwise, the hardware mold processed by the mold core after replacement will have poor effect and high waste rate. In addition, when aligning the mold core mouth to replace the mold core, manual support at the mold core mouth is likely to cause safety accidents and damage to the mold core, and the alignment of the mold core and the mold core mouth cannot be guaranteed. In view of this, we propose a new type of hardware mold with quickly replaced mold cores. Utility Model Content

[0006] The purpose of the utility model is to provide a novel hardware mold with a mold core that can be quickly replaced to solve the problems raised in the above background technology.

[0007] Therefore, the utility model provides a hardware mold with a mold core that can be quickly replaced, including a lower base, a lower mold base is fixedly connected to the surface of the lower base, an upper base is arranged above the lower base, and an upper mold base is fixedly connected to the lower side of the upper base, wherein:

[0008] The lower mold core fixed on the upper surface of the lower mold base is correspondingly adapted to the upper mold core fixed on the lower surface of the upper mold base.

[0009] As a further improvement of the present technical solution, the four ends of the lower base surface are fixedly connected to support rods, the surface of the support rod is slidably connected to a sliding sleeve, and one end of the sliding sleeve is fixedly connected to the bottom of the upper base, a connecting hole is opened in the upper base, and the connecting hole is adapted to the support rod, and a first sliding hole is also opened in the upper base.

[0010] As a further improvement of the present technical solution, a cleaning assembly is fixedly connected below the push rod, and the lower mold base includes a lower bottom plate, the four ends of the lower bottom plate are provided with lower fixing holes, a groove is opened in the lower bottom plate, and rotation grooves are provided on both sides of the groove, and the rotation groove is located inside the lower bottom plate, and the rotation groove passes through one end of the lower bottom plate.

[0011] As a further improvement of the technical solution, a lower die is provided inside the groove, and clamping grooves are provided on both sides of the die. A rotating shaft is fixedly connected to the inside of the rotating groove, a clamping strip is rotatably connected to the outer wall of the rotating shaft, a clamping block is fixedly connected to one end of the clamping strip, and the clamping block is adapted to the clamping groove.

[0012] As a further improvement of the present technical solution, the upper mold base includes an upper bottom plate, the four ends of the upper bottom plate are provided with upper fixing holes, the upper bottom plate is provided with a second sliding hole, one side of the lower bottom plate is provided with a pushing hole, a mold groove is provided under the upper bottom plate, a positioning groove is provided in the mold groove, sliding grooves are provided at both ends of the mold groove, and the sliding grooves are located inside the upper bottom plate.

[0013] As a further improvement of the present technical solution, a clamping member is slidably connected inside the sliding groove, a positioning column is provided inside the positioning groove, and one end of the positioning column is fixedly connected to the positioning groove, a pushing component is provided on the surface of the pushing hole, and the pushing component is at one end of the upper base plate.

[0014] As a further improvement of the present technical solution, the pushing assembly includes an outer shell, a plurality of first convex teeth are evenly distributed inside the outer shell, a push shell is provided inside the outer shell, and the lower end of the push shell is gear-shaped, a protrusion is fixedly connected to the outer wall of the push shell, and the protrusion is matched with the gap between the first convex teeth, a cam is provided inside the push shell, a second convex tooth is provided on the outer wall of the cam, and the second convex tooth is matched with the gear shape at the lower end of the push shell, a push head is fixedly connected to one end of the outer shell, a sleeve shaft is slidably connected to the outer wall of the outer shell, and one end of the sleeve shaft is fixedly connected to one end of the upper base plate.

[0015] As a further improvement of the present technical solution, a splint is provided under the upper base plate, a splint groove is provided in the splint, a sliding column is fixedly connected above the splint, and the sliding column is adapted to the first sliding hole and the second sliding hole, an elastic part is provided on the outer wall of the sliding column, and the elastic part is located between the splint and the upper base plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: when the hardware mold is working, the die is fixed by the clamping block of the lower die seat, and the die is fixed by the clamping piece of the upper die seat; when the die is replaced, the clamping strip rotates through the rotating shaft to bring out the clamping block, and then the die can be taken out; the die can be fixed and replaced very conveniently and quickly through the lower die seat; when the punch is replaced, the punch is placed between the clamping pieces, and the punch is fixed between the two clamping pieces by the action of the spring on the clamping piece; the punch is pushed to the correct working position by the pushing assembly and under the action of the positioning column, the punch can be replaced very conveniently and quickly through the upper die seat, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the utility model without the outer frame;

[0019] Figure 3 It is a schematic diagram of the separation structure of the lower die base of the utility model;

[0020] Figure 4 It is a schematic diagram of the separation structure of the upper die seat of the utility model;

[0021] Figure 5 This is a schematic diagram of the upper bottom plate flipping structure of the utility model;

[0022] Figure 6 This is a schematic diagram of the separation structure of the push component of the utility model;

[0023] The meaning of each number in the figure is:

[0024] 1. Lower base; 10. Support rod; 100. Sliding sleeve; 11. Upper base; 110. Connecting hole; 120. First sliding hole;

[0025] 2. Lower die base; 20. Lower bottom plate; 201. Lower fixing hole; 202. Groove; 203. Rotation groove; 21. Card strip; 210. Rotation axis; 211. Card block; 22. Concave die; 221. Card groove;

[0026] 3. Upper die seat; 30. Upper base plate; 301. Upper fixing hole; 302. Second sliding hole; 303. Die groove; 304. Push hole; 305. Positioning groove; 306. Sliding groove; 31. Clamp; 311. Sliding column; 312. Elastic member; 313. Clamp groove; 32. Clamping member; 33. Positioning column; 34. Pushing assembly; 341. Shell; 342. Sleeve shaft; 343. Pushing head; 344. First convex tooth; 345. Pushing shell; 346. Bump; 347. Cam; 348. Second convex tooth. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Hardware molds are used in industrial production to make metal materials into parts or products of the required shape by various presses and special tools installed on the presses. Such special tools are collectively called hardware molds. According to different processes, they can be divided into: 1. Punching molds separate materials along closed or open contours. Such as blanking molds, punching molds, cutting molds, notching molds, trimming molds, cutting molds, etc.; 2. Bending molds make sheet blanks or other blanks bend and deform along a straight line (bending line) to obtain a workpiece with a certain angle and shape; 3. Drawing molds are molds that make sheet blanks into open hollow parts, or make hollow parts further change their shape and size; 4. Forming molds are molds that directly copy and shape blanks or semi-finished workpieces according to the shapes of convex and concave molds, and the material itself only produces local plastic deformation. Such as bulging molds, shrinking molds, expanding molds, undulating forming molds, flanging molds, shaping molds, etc.

[0029] See also Figure 1-Figure 6As shown, the present embodiment provides a hardware mold with a mold core that can be quickly replaced, including a lower base 1, and a lower mold base 2 is fixedly connected to the surface of the lower base 1. When the hardware mold is working and the lower mold core is replaced, the lower mold core needs to be placed inside the lower mold base 2, and the lower mold base 2 is used to fix the lower mold core during processing (the lower mold core here is the concave mold 22 hereinafter). An upper base 11 is provided above the lower base 1, and an upper mold base 3 is fixedly connected below the upper base 11. When the hardware mold is working and the upper mold core is replaced, the upper mold core needs to be placed in the upper mold base 3, and the upper mold base 3 is used to fix the upper mold core during processing (the lower mold core here is the convex mold hereinafter). When the upper mold core is replaced, the upper mold base 3 facilitates the rapid replacement of the upper mold core.

[0030] Taking into account that the core of the hardware mold needs to engage and move up and down when working, a space needs to be left between the cores for easy replacement when replacing. Therefore, the four ends of the surface of the lower base 1 are fixedly connected to support rods 10, and the surface of the support rod 10 is slidably connected to a sliding sleeve 100, and one end of the sliding sleeve 100 is fixedly connected to the bottom of the upper base 11. A connecting hole 110 is opened in the upper base 11, and the connecting hole 110 is adapted to the support rod 10. A first sliding hole 120 is also opened in the upper base 11. The upper and lower bases 1 form a working space through the support rod 10, and the upper and lower bases 1 can move up and down when the sliding sleeve 100 slides on the support rod 10. The positional relationship of the upper and lower bases 1 can be adjusted through the sliding sleeve 100, which facilitates the replacement of the core.

[0031] When replacing the die 22 (the die 22 here is the lower die core mentioned above), it is necessary to release the fixation. After the replacement is completed, the die 22 needs to be fixed. Therefore, the lower die base 2 includes a lower bottom plate 20. The four ends of the lower bottom plate 20 are provided with lower fixing holes 201. The lower die base 2 can be fixed on the lower base 1 through the lower fixing holes 201. A groove 202 is opened in the lower bottom plate 20. The inside of the groove 202 is provided with a die 22. The die 22 can be limited by the groove 202. The two sides of the die 22 are provided with grooves 221. The two sides of the groove 202 are provided with rotation grooves 203. The rotation grooves 203 are located inside the lower bottom plate 20. The rotation grooves 203 pass through A rotating shaft 210 is fixedly connected inside the rotating groove 203 at one end of the lower base plate 20, and a clamping strip 21 is rotatably connected to the outer wall of the rotating shaft 210. A clamping block 211 is fixedly connected to one end of the clamping strip 21, and the clamping block 211 is adapted to the clamping groove 221. The rotating shaft 210 in the rotating groove 203 allows the clamping strip 21 to drive the clamping block 211 to move. When it is necessary to fix the die 22, the clamping block 211 is rotated to the clamping groove 221 on the surface of the die 22 so that the clamping block 211 is stuck in the clamping groove 221, thereby fixing the die 22. When replacing, the clamping block 211 is disengaged from the clamping groove 221, so that the die 22 can be quickly replaced and fixed.

[0032] Taking into account the need to limit the punch (the punch here is the upper mold core mentioned above), when replacing the mold core of the hardware mold, it is necessary to align the mold core with the mold core mouth to complete the replacement. Otherwise, the hardware mold processed by the mold core after replacement will have poor effect and high waste rate. The upper mold base 3 includes an upper base plate 30. The four ends of the upper base plate 30 are provided with upper fixing holes 301. The upper base plate 30 can be fixed on the upper base 11 through the upper fixing holes 301, which reduces shaking during replacement and improves the accuracy of changing the mold core. A second sliding hole 302 is provided in the upper base plate 30, a push hole 304 is provided on one side of the upper base plate 30, and a mold groove is provided below the upper base plate 30. 303, sliding grooves 306 are provided at both ends of the mold groove 303, and the sliding groove 306 is located inside the upper base plate 30, and a clamping member 32 is slidably connected inside the sliding groove 306, and a positioning groove 305 is provided in the mold groove 303, and a positioning column 33 is provided inside the positioning groove 305, and one end of the positioning column 33 is fixedly connected to the positioning groove 305, and the mold groove 303 can be used to limit the punch, and the clamping member 32 inside the sliding groove 306 can clamp and fix the punch, and can make the punch slide to the positioning groove 305 when replaced, and through the positioning column 33, the punch reaches the correct position, thereby improving the replacement accuracy of the punch when replaced.

[0033] Considering that when replacing the mold core by aligning the mold core opening, manual support at the mold core opening is likely to cause safety accidents and damage to the mold core, and the alignment of the mold core and the mold core opening cannot be guaranteed, a push assembly 34 is provided on the surface of the push hole 304, and the push assembly 34 is at one end of the upper base plate 30. The push assembly 34 includes a shell 341, and a plurality of first convex teeth 344 are evenly distributed inside the shell 341. A push shell 345 is provided inside the shell 341, and the push shell 345 The lower end is gear-shaped, and a protrusion 346 is fixedly connected to the outer wall of the push shell 345, and the protrusion 346 is adapted to the gap between the first protruding tooth 344, and a cam 347 is provided inside the push shell 345. The outer wall of the cam 347 is provided with a second protruding tooth 348, and the second protruding tooth 348 is adapted to the gear shape at the lower end of the push shell 345. A push head 343 is fixedly connected to one end of the shell 341, and a sleeve shaft 342 is slidably connected to the outer wall of the shell 341, and one end of the sleeve shaft 342 is connected to the upper bottom plate. 30 is fixedly connected at one end. When replacing the punch, the pushing assembly 34 is slid as a whole by pushing the pushing head 343. During the pushing, the pushing shell 345 inside the shell 341 slides in the gap between the first convex teeth 344 inside the shell 341 through the convex block 346. During the pushing, the gear shape at the end of the pushing shell 345 slides to the second convex tooth 348 on the surface of the cam 347, and the gear shape at the end of the pushing shell 345 engages with the second convex tooth 348. At this time, the pushing assembly 34 has dragged the clamped punch to the correct position, and the spring at the end of the positioning column 33 makes the gear shape at the end of the pushing shell 345 engage with the second convex tooth 348 and push back a part of the cam 347. At this time, after the cam 347 is pushed back, a part of the end of the second convex tooth 348 engages with the end of the first convex tooth 344. The punch reaches the correct working position and is fixed through the complete engagement of the convex teeth, thereby realizing the rapid replacement of the punch.

[0034] Taking into account that the mold core is meshed with the upper and lower mold cores during operation so that the component can obtain the desired processing shape, but when the mold cores are meshed, the component may fit the mold core, thereby affecting the processing effect of the mold core, and the punch needs to be reset after the meshing is completed. Therefore, a clamping plate 31 is provided under the upper base plate 30, and a clamping plate groove 313 is provided in the clamping plate 31. A sliding column 311 is fixedly connected above the clamping plate 31, and the sliding column 311 is adapted to the first sliding hole 120 and the second sliding hole 302. An elastic member 312 is provided on the outer wall of the sliding column 311 and the elastic member 312 is located between the clamping plate 31 and the upper base plate 30. When the punch is meshed, the sliding column 311 on the clamping plate 31 slides in the sliding hole so that the punch can be fully meshed, thereby improving the processing effect. When the punch is reset, the elastic member 312 can give the punch a rebound force, so that the punch can be accurately reset, thereby improving the processing effect.

[0035] In summary, the working principle of this solution is as follows:

[0036] When the die 22 is damaged, it is necessary to replace the die 22. When replacing the die 22, the rotating shaft 210 in the rotating groove 203 is used to enable the clamping strip 21 to drive the clamping block 211 to move. When the die 22 needs to be fixed, the clamping block 211 is rotated to the clamping groove 221 on the surface of the die 22 so that the clamping block 211 is clamped in the clamping groove 221 to fix the die 22. When replacing, the clamping block 211 is disengaged from the clamping groove 221, so that the die 22 can be quickly replaced and fixed.

[0037] When the punch is damaged, it needs to be replaced. When replacing the punch, the pushing assembly 34 is slid as a whole by pushing the pushing head 343. During the pushing, the pushing shell 345 inside the shell 341 slides in the gap between the first convex teeth 344 inside the shell 341 through the protrusion 346. During the pushing, the gear shape at the end of the pushing shell 345 slides to the second convex tooth 348 on the surface of the cam 347, and the gear shape at the end of the pushing shell 345 engages with the second convex tooth 348. At this time, the pushing assembly 34 has dragged the clamped punch to the correct position, and the spring at the end of the positioning column 33 makes the gear shape at the end of the pushing shell 345 engage with the second convex tooth 348 and push back a part of the cam 347. At this time, after the cam 347 is pushed back, a part of the end of the second convex tooth 348 engages with the end of the first convex tooth 344. The punch reaches the correct working position and is fixed through the complete engagement of the convex teeth, thereby realizing the rapid replacement of the punch.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A metal mold with a core that can be quickly replaced, comprising a lower base (1), characterized in that: A lower die seat (2) is fixedly connected to the surface of the lower base (1), an upper base (11) is provided above the lower base (1), and an upper die seat (3) is fixedly connected below the upper base (11), wherein: The lower mold core fixed on the upper surface of the lower mold base (2) is adapted to correspond to the upper mold core fixed on the lower surface of the upper mold base (3).

2. A metal mold with a quickly replaceable mold core according to claim 1, characterized in that: The four ends of the surface of the lower base (1) are fixedly connected to support rods (10), the surface of the support rod (10) is slidably connected to a sliding sleeve (100), and one end of the sliding sleeve (100) is fixedly connected to the bottom of the upper base (11), the upper base (11) is provided with a connecting hole (110), and the connecting hole (110) is adapted to the support rod (10), and the upper base (11) is also provided with a first sliding hole (120).

3. A metal mold with a quickly replaceable mold core according to claim 1, characterized in that: The lower die base (2) comprises a lower bottom plate (20), the four ends of the lower bottom plate (20) are provided with lower fixing holes (201), a groove (202) is provided inside the lower bottom plate (20), rotation grooves (203) are provided on both sides of the groove (202), and the rotation grooves (203) are located inside the lower bottom plate (20), and the rotation grooves (203) pass through one end of the lower bottom plate (20).

4. A metal mold with a quickly replaceable mold core according to claim 3, characterized in that: A concave mold (22) is provided inside the groove (202), and clamping grooves (221) are provided on both sides of the concave mold (22). A rotating shaft (210) is fixedly connected inside the rotating groove (203), and a clamping strip (21) is rotatably connected to the outer wall of the rotating shaft (210). A clamping block (211) is fixedly connected to one end of the clamping strip (21), and the clamping block (211) is matched with the clamping groove (221).

5. The metal mold with a quickly replaceable mold core according to claim 1, characterized in that: The upper mold base (3) comprises an upper base plate (30), the upper base plate (30) is provided with upper fixing holes (301) at four ends, the upper base plate (30) is provided with a second sliding hole (302), one side of the upper base plate (30) is provided with a pushing hole (304), a mold groove (303) is provided below the upper base plate (30), a positioning groove (305) is provided in the mold groove (303), sliding grooves (306) are provided at both ends inside the mold groove (303), and the sliding grooves (306) are located inside the upper base plate (30).

6. A metal mold with a quickly replaceable mold core according to claim 5, characterized in that: A clamping member (32) is slidably connected inside the sliding groove (306), a positioning column (33) is provided inside the positioning groove (305), and one end of the positioning column (33) is fixedly connected to the positioning groove (305), and a pushing component (34) is provided on the surface of the pushing hole (304), and the pushing component (34) is at one end of the upper base plate (30).

7. A metal mold with a quickly replaceable mold core according to claim 6, characterized in that: The pushing assembly (34) comprises a shell (341), wherein a plurality of first convex teeth (344) are evenly distributed inside the shell (341), a pushing shell (345) is arranged inside the shell (341), and the lower end of the pushing shell (345) is gear-shaped, a protrusion (346) is fixedly connected to the outer wall of the pushing shell (345), and the protrusion (346) is matched with the gap between the first convex teeth (344), a cam (347) is arranged inside the pushing shell (345), and a second convex tooth (348) is arranged on the outer wall of the cam (347), and the second convex tooth (348) is matched with the gear shape of the lower end of the pushing shell (345), one end of the shell (341) is fixedly connected to a pushing head (343), and the outer wall of the shell (341) is slidably connected to a sleeve shaft (342), and one end of the sleeve shaft (342) is fixedly connected to one end of the upper base plate (30).

8. The metal mold with a quickly replaceable mold core according to claim 5, characterized in that: A clamping plate (31) is provided below the upper base plate (30), a clamping plate groove (313) is provided inside the clamping plate (31), a sliding column (311) is fixedly connected above the clamping plate (31), and the sliding column (311) is adapted to the first sliding hole (120) and the second sliding hole (302), an elastic member (312) is provided on the outer wall of the sliding column (311), and the elastic member (312) is located between the clamping plate (31) and the upper base plate (30).

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