Punching machine blanking top pressing device

Abstract

The utility model relates to a punch press blanking top and butt device, install in a machine base of punch press, the machine base has a blanking hole, the top and butt device contains an oil cylinder, connects in the machine base below, the oil cylinder has a blanking hole corresponding the blanking hole of machine base, at least three oil pressure holes, at least three rod shift holes respectively by each oil pressure hole to the direction of machine base penetrates out and multiple oil channels respectively links each oil pressure hole and connects oil pressure source, at least three oil pressure rods, each has a rod body respectively sealedly to each rod shift hole of oil cylinder is arranged, each rod body reaches each oil pressure hole of oil cylinder, a lower butt piece, connects on the rod body of each oil pressure rod top, the lower butt piece has a blanking hole corresponding the blanking hole of machine base, thus, the problem such as big space occupation, high cost and accuracy of known punch press blanking top and butt device is improved.

Description

Technical Field

[0001] This utility model relates to hydraulic machinery, and in particular to a top-stop device for punching material. Background Technology

[0002] The punch press blanking device is known to have multiple hydraulic cylinder rods, which occupy a large space and have high installation costs. Furthermore, it is time-consuming and laborious to adjust the accurate position and perpendicularity of each hydraulic cylinder rod, so it needs to be improved. Summary of the Invention

[0003] To address the aforementioned problems, the main objective of this invention is to provide a punch press unloading device that can provide sufficient and balanced buffering and unloading effects within a relatively small space.

[0004] To achieve the above objectives, this utility model provides a punch press unloading and abutting device, which is installed on a punch press base, the base having an unloading hole; characterized in that the abutting device includes: a hydraulic cylinder connected below the base; the hydraulic cylinder having an unloading hole corresponding to the unloading hole of the base, at least three hydraulic holes, at least three rod shifting holes respectively extending from the hydraulic holes toward the base, and multiple oil passages respectively connecting the hydraulic holes and connecting to a hydraulic source; at least three hydraulic rods, each having a rod body that is sealed through the rod shifting holes of the hydraulic cylinder, the rod bodies leading to the hydraulic holes of the hydraulic cylinder; and a lower abutting member connected above the rod bodies of the hydraulic rods, the lower abutting member having an unloading hole corresponding to the unloading hole of the base.

[0005] By adopting the above technical solution, the hydraulic holes and rod shifting holes of this utility model are located in the same hydraulic cylinder, which can reduce the space occupied, ensure accurate assembly position, and make the movements of each hydraulic rod consistent and precise.

[0006] In the above-described technical solution of this utility model, each hydraulic rod has a rod head connected to one end of the rod body, and the rod head is located in the hydraulic hole of the hydraulic cylinder.

[0007] The hydraulic cylinder has at least three bushings, and each rod displacement hole is formed in each bushing.

[0008] The hydraulic cylinder has an upper plate that presses and secures the bushings.

[0009] The hydraulic cylinder has an upper cylinder, and the bushings are disposed in the upper cylinder.

[0010] The hydraulic cylinder has a lower cylinder, and the hydraulic holes are formed in the lower cylinder.

[0011] At least one sealing ring is installed between each rod shifting hole of the hydraulic cylinder and the rod body of each hydraulic rod, and at least one wear-resistant ring is installed between each rod shifting hole of the hydraulic cylinder and the rod body of each hydraulic rod.

[0012] The lower abutment has a first lower abutment attached above the rod of each hydraulic rod, and a second lower abutment attached above the first lower abutment.

[0013] It also includes an upper abutment, the lower abutment having a first annular conical surface, and the upper abutment having a second annular conical surface abutting against the first annular conical surface.

[0014] It also includes a material cylinder located in the discharge port of the hydraulic cylinder.

[0015] The detailed structure, features, assembly, and usage of the punch press unloading device provided by this invention will be described in the subsequent detailed description of the embodiments. However, those skilled in the art should understand that these detailed descriptions and the specific embodiments listed for implementing this invention are for illustrative purposes only and are not intended to limit the scope of patent protection of this invention. Attached Figure Description

[0016] Figure 1 This is a three-dimensional combined view of a preferred embodiment of the present invention and the machine tool; Figure 2 This is an exploded perspective view of a preferred embodiment of the present invention and the machine tool; Figure 3 This is an exploded perspective view of a preferred embodiment of the present invention; Figure 4 This is a top view of a preferred embodiment of the present invention; Figure 5 yes Figure 4 Sectional view of AA; Figure 6 yes Figure 4 BB section view; Figure 7 yes Figure 6 A magnified view of a portion of the view; Figure 8 Similar Figure 6 This indicates the upward movement status; Figure 9 This is an exploded perspective view of another preferred embodiment of the present invention; Figure 10 yes Figure 9 Front view sectional view; Figure 11 This is a cross-sectional view of another embodiment of the present invention assembled on the machine tool; Figure 12This is a perspective view of another embodiment of the present invention, including the addition of a feed cylinder; Figure 13 yes Figure 12 A partial exploded view; Figure 14 yes Figure 12 Front view sectional view. Detailed Implementation

[0017] The applicant hereby clarifies that throughout this specification, including the embodiments described below and the claims of the patent application, all directional terms are based on the directions shown in the drawings. Secondly, in the embodiments and drawings described below, the same element reference numerals represent the same or similar elements or their structural features.

[0018] Please see Figure 1 and Figure 2 As shown, a preferred embodiment of the present invention provides a punch press blanking device 1, which is installed on a base 10 of the punch press and is used to abut the ejector pin of the die (not shown in the figure), and is connected to a hydraulic power source; see also Figures 3 to 7 As shown, the top-stopping device 1 of this utility model mainly includes a hydraulic cylinder 2, four hydraulic rods 6, and a bottom-stopping component 7.

[0019] The base 10 has a discharge hole 11 and multiple base bolt holes 12. The discharge hole 11 allows the discharge and the mold's ejector pin to pass through.

[0020] The hydraulic cylinder 2 is connected to the base 10 below by multiple supports P1; wherein, multiple screws B1 pass through the bolt holes 12 of the base 10 to screw the upper end of each support P1, and multiple screws B2 pass through the hydraulic cylinder 2 to screw the lower end of each support P1.

[0021] The hydraulic cylinder 2 includes an upper cylinder 20, a lower cylinder 30, four bushings 40, and an upper plate 50. Multiple screws B3 pass through the upper plate 50 and the upper cylinder 20 and are screwed to the lower cylinder 30.

[0022] The upper cylinder 20 of the hydraulic cylinder 2 is fixedly connected to each support P1. The upper cylinder 20 has multiple upper cylinder fixing holes 21, a discharge hole 22, multiple upper cylinder bolt holes 23, multiple bushing body holes 24, and multiple bushing shoulder holes 25. Multiple screws B2 pass through the upper cylinder fixing holes 21, and each bushing shoulder hole 25 is located above each bushing body hole 24.

[0023] The lower cylinder 30 is positioned below the upper cylinder 20. The lower cylinder 30 has multiple lower cylinder screw holes 31, a feed hole 32, four hydraulic holes 33, and four oil passages 34. Each oil passage 34 is connected to each hydraulic hole 33 and connected to a hydraulic power source. Each hydraulic hole 33 is connected to each bushing body hole 24.

[0024] Each bushing 40 has a bushing body 41, a bushing shoulder 42, a rod shifting hole 43, multiple outer sealing ring grooves 44, multiple inner sealing ring grooves 45, and multiple inner grinding ring grooves 46. The bushing body 41 is installed in each bushing body hole 24 of the upper cylinder 20 and each hydraulic hole 33 of the lower cylinder 30, and the bushing shoulder 42 is installed in each bushing shoulder hole 25 of the upper cylinder 20.

[0025] Each outer sealing ring groove 44 is equipped with a sealing ring R, each inner sealing ring groove 45 is equipped with a sealing ring R, and each inner wear ring groove 46 is equipped with a wear-resistant ring C.

[0026] The upper plate 50 is positioned above the upper cylinder 20 and the bushing 40 and is secured by multiple screws B3. The upper plate 50 has multiple upper plate bolt holes 51, a discharge hole 52, and multiple upper plate rod through holes 53, each with an upper plate sealing ring groove 54. Each screw B3 passes through each upper plate bolt hole 51 and each upper cylinder bolt hole 23 and is screwed into each lower cylinder bolt hole 31. Each upper plate sealing ring groove 54 is fitted with a sealing ring R.

[0027] Each hydraulic rod 6 has a rod body 61 and a rod head 62, with the rod head 62 connected to one end of the rod body 61. Each rod body 61 passes through a rod-through hole 53 in the upper plate 50 and a sealing ring R installed in the upper plate 50. Each rod body 61 also passes through a rod-shifting hole 43 in the bushing 40. The rod body 61 also passes through a sealing ring R and a wear-resistant ring C installed in the rod-shifting hole 43 in the bushing 40. Each rod body 61 leads to a hydraulic hole 33 in the lower cylinder 30 of the hydraulic cylinder 2, and the rod head 62 is also located in the hydraulic hole 33. That is, each rod body 61 passes through the rod-shifting hole 43 of the hydraulic cylinder 2 in a sealed manner.

[0028] The lower abutment 7 is attached above the rod body 61 of each hydraulic rod 6. The lower abutment 7 includes a first lower abutment 70. The first lower abutment 70 is secured to the rod body 61 of each hydraulic rod 6 by a plurality of screws B4. The first lower abutment 70 is used to abut the top post of the mold. The first lower abutment 70 has a rod fixing hole 71, a discharge hole 72, and a first connection portion 73. The rod fixing hole 71 allows the plurality of screws B4 to pass through for securing.

[0029] Actions such as Figure 8 As shown, the hydraulic source injects oil into each hydraulic hole 33 through each oil passage 34, and each hydraulic rod 6 is pushed up by the hydraulic pressure. Each hydraulic rod 6 drives the lower abutment 7 to rise, and the lower abutment 7 abuts against the top column of the mold, thus achieving a buffering and abutting effect. The hydraulic source can control the rising and falling.

[0030] In this embodiment, by setting each hydraulic hole 33 and each rod shifting hole 43 in the same hydraulic cylinder 2, the processing and assembly can be fast and accurate, the space occupied can be reduced, and the movement of each hydraulic rod 6 can be consistent and precise; that is, it occupies less space, and improves and maintains sufficient hydraulic pressure buffering effect, thus achieving the creative purpose of this utility model.

[0031] Another preferred embodiment of this utility model is as follows: Figures 9 to 11 As shown, the abutting device 1 includes all the components of the previous embodiment, except that: the lower abutting member 7 further includes a second lower abutting member 80, and the abutting device 1 includes an upper abutting member 90. The second lower abutting member 80 is disposed above the first lower abutting member 70, and the upper abutting member 90 is disposed above the second lower abutting member 80.

[0032] The second lower abutment 80 has a second connection 81, a first annular conical surface 82 and a lower feed hole 83, and the second connection 81 is installed on the first connection 73 of the first lower abutment 70.

[0033] The upper abutment 90 has a second annular conical surface 91 and a lower feeding hole 92, and the second annular conical surface 91 corresponds to and abuts against the first annular conical surface 82 of the second lower abutment 80.

[0034] In this embodiment, the first annular conical surface 82 and the second annular conical surface 91 cooperate, and the upper abutment 90 can automatically adjust and evenly support the top column of the buffer abutment mold, thereby improving the achievement of the purpose of this utility model.

[0035] Both of the aforementioned embodiments of this utility model can be further equipped with a material cylinder 99, such as... Figures 12 to 14 As shown, the feeding cylinder 99 has a cylinder body 991 and a cylinder fixing part 992. The cylinder body 991 is provided with an upper cylinder 20, a lower cylinder 30, an upper plate 50, and a lower abutment 7. The cylinder fixing part 992 is fixed to the lower cylinder 30. The feeding cylinder 99 also forms a feeding hole. The feeding cylinder 99 can make the feeding smoother and further improve the achievement of the purpose of this utility model.

[0036] In addition to the examples above, this utility model can also be implemented in the following ways, all of which can achieve the purpose of this utility model: For example, the upper cylinder 20 and the lower cylinder 30 are integrally formed, or the upper cylinder 20 and the bushing 40 are integrally formed, or the upper cylinder 20, the lower cylinder 30 and the bushing 40 are integrally formed, or the upper cylinder 20, the lower cylinder 30 and the bushing 40 are integrally formed. Moreover, the discharge holes of each cylinder together form a discharge hole.

[0037] The number of each bushing 40 and hydraulic rod 6 is not limited to four as mentioned above. At least three can be evenly distributed to achieve balance, that is, at least three of each bushing body hole 24, bushing shoulder hole 25, hydraulic hole 33, rod shift hole 43, etc.

[0038] Alternatively, each sealing ring R installed in the bushing 40 can also be installed on the hydraulic rod 6, that is, at least one sealing ring R is installed between each rod shifting hole 43 of the hydraulic cylinder 2 and the rod body 61 of each hydraulic rod 6.

[0039] Alternatively, the sealing rings R installed outside the bushing 40 can also be installed in the lower cylinder 30, that is, at least one sealing ring R is installed between the bushing body 41 of each bushing 40 and each oil pressure hole 33.

[0040] Alternatively, the wear-resistant rings C are not limited to being installed on the bushing 40, but can also be installed on the hydraulic rod 6, that is, at least one wear-resistant ring C is installed between the rod shifting hole 43 of the hydraulic cylinder 2 and the rod body 61 of the hydraulic rod 6.

[0041] In addition, the clubhead 62 can be integrally formed with the shaft 61, or the clubhead 62 may not be required.

[0042] Furthermore, the first lower abutment 70 and the second lower abutment 80 can also be integrally formed. Moreover, the various feeding holes together form a feeding hole.

[0043] Furthermore, the first annular conical surface 82 and the second annular conical surface 91 can be oblique conical surfaces or spherical conical surfaces.

Claims

1. A punch press unloading device, mounted on a base of a punch press, said base having an unloading hole; characterized in that... The abutting device includes: A hydraulic cylinder is connected to the lower part of the machine base; the hydraulic cylinder has a discharge hole corresponding to the discharge hole of the machine base, at least three hydraulic holes, at least three rod shift holes respectively extending from each of the hydraulic holes toward the machine base, and multiple oil passages respectively connecting each of the hydraulic holes and connecting to the hydraulic source; At least three hydraulic rods, each having a rod body that is sealed through each rod movement hole of the hydraulic cylinder, and each rod body connecting to each hydraulic hole of the hydraulic cylinder; A lower abutment is attached above the rod body of each hydraulic rod, and the lower abutment has a lower feeding hole corresponding to the feeding hole of the machine base.

2. The punch press unloading device as described in claim 1, characterized in that: Each hydraulic rod has a rod head connected to one end of the rod body, and the rod head is located in the hydraulic hole of the hydraulic cylinder.

3. The punch press unloading device as described in claim 1, characterized in that: The hydraulic cylinder has at least three bushings, and each rod displacement hole is formed in each bushing.

4. The punch press unloading device as described in claim 3, characterized in that: The hydraulic cylinder has an upper plate that presses and secures the bushings.

5. The punch press unloading device as described in claim 3, characterized in that: The hydraulic cylinder has an upper cylinder, and the bushings are disposed in the upper cylinder.

6. The punch press unloading device as described in claim 1, characterized in that: The hydraulic cylinder has a lower cylinder, and the hydraulic holes are formed in the lower cylinder.

7. The punch press unloading device as described in claim 1, characterized in that: At least one sealing ring is installed between each rod shifting hole of the hydraulic cylinder and the rod body of each hydraulic rod, and at least one wear-resistant ring is installed between each rod shifting hole of the hydraulic cylinder and the rod body of each hydraulic rod.

8. The punch press unloading device as described in claim 1, characterized in that: The lower abutment has a first lower abutment attached above the rod of each hydraulic rod, and a second lower abutment attached above the first lower abutment.

9. The punch press unloading device as described in claim 1, characterized in that: It also includes an upper abutment, the lower abutment having a first annular conical surface, and the upper abutment having a second annular conical surface abutting against the first annular conical surface.

10. The punch press unloading device as described in claim 1, characterized in that: It also includes a material cylinder located in the discharge port of the hydraulic cylinder.

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