Stable hoisting punch

Abstract

The utility model belongs to the technical field of die punches, and particularly relates to a stable hoisting punch which comprises an impact part and a hoisting head fixed at the top of the impact part, the hoisting head is a cylinder, guide grooves are vertically formed in four mutually parallel end faces of a hoisting head column body, an outer ring is annularly arranged on the hoisting head column body, and the outer ring is a hollow cylinder. And a belt sleeving plate corresponding to the guide groove is arranged on one side, close to the hoisting head, of the outer ring, so that the sleeving plate can be fixed on the hoisting head in an embedded manner through the arrangement of the guide groove and the sleeving plate, and the center of gravity of the hoisting opening and the center of gravity of the hoisting head can be kept consistent; the gap between the lifting belt and the impact part is shortened, so that shaking of the lifting belt when the lifting belt is pulled up is reduced, and the sleeving plate can increase the contact area between the lifting head and the lifting belt, so that the lifting belt is prevented from slipping and loosening.

Description

Technical Field

[0001] The utility model belongs to the technical field of die punches, and in particular relates to a stable hoisting punch. Background Art

[0002] A punch refers to a metal part on a stamping die in a mechanical tool, also called a punch rod, a needle or a punch. It is installed on the stamping die to perform continuous blanking, punching and breaking operations to separate or plastically deform the processed material, thereby obtaining the required finished product or semi-finished product.

[0003] In the prior art, the lifting structure of the punch usually has several lifting rings on the outside of the punch. When the punch needs to be lifted and moved to the bottom of the press, the two ends of the lifting belt need to be hung on the lifting ring and the crane respectively, and then the punch is lifted by the crane. However, since the lifting rings are mostly laterally protruding and fixed on the outside of the punch, there will be a certain distance between the lifting belt and the body of the punch after the lifting belt is tied to the lifting ring. As a result, the lifting belt will swing to a certain extent due to the change in center of gravity when it is lifted upward by the crane, causing the punch to shake, which poses a certain safety hazard. At the same time, the contact area between the separate lifting ring and the lifting belt is small. When the crane moves the lifted punch, the lifting belt is at risk of slipping and loosening. Utility Model Content

[0004] In view of this, the utility model provides a stable lifting punch, the purpose of which is to enable the set plate to be fixed on the lifting head in an embedded form through the arrangement of the guide groove and the set plate, so that the center of gravity of the lifting port and the lifting head can be kept consistent. Therefore, when the lifting belt is tied to the set plate, the gap between the lifting belt and the impact piece is shortened, which helps to reduce the shaking of the lifting belt when it is pulled up. Secondly, the set plate can increase the contact area between the lifting head and the lifting belt to prevent the lifting belt from slipping and loosening.

[0005] The technical solution adopted by the utility model is as follows:

[0006] It includes an impact piece and a lifting head fixed on the top of the impact piece, the lifting head is cylindrical, and guide grooves are vertically opened on four mutually parallel end faces of the lifting head column body, and an outer ring is arranged on the column body of the lifting head, wherein a sleeve plate corresponding to the guide groove is arranged on the side of the outer ring close to the lifting head, and the sleeve plate is embedded in the guide groove, and a gap is left between the side of the sleeve plate close to the guide groove and the bottom surface of the guide groove.

[0007] As a preferred technical solution, a lifting opening is provided on the side of the belt plate facing the outer ring, and the lifting opening is parallel to the guide groove with the belt plate as the center.

[0008] Furthermore, a plurality of first screw holes are provided on the end surface of the column body of the lifting head which is not provided with the guide groove and on the outer ring, and a first screw rod is passed through the first screw hole.

[0009] Furthermore, limiting grooves are vertically provided on two parallel inner walls of the guide groove, and limiting blocks corresponding to the limiting grooves are provided on both sides of the belt plate.

[0010] Furthermore, the lifting head is provided with a fixing plate at the opening of the guide groove, and second screw holes are provided on the fixing plate, the upper and lower ends of the guide groove and the limit block, and a second screw rod is passed through the inside of the second screw hole.

[0011] Furthermore, the outer ring is a hollow barrel-shaped structure, and the outer ring is completely sleeved on the outside of the lifting head.

[0012] Furthermore, the belt plate, outer ring, lifting head and guide groove are at the same height.

[0013] Furthermore, the fixing plate is fixed to the lifting head and the limiting block by a second screw.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] 1. Through the setting of the guide groove and the set plate, the set plate can be fixed on the lifting head in an embedded form, so that the center of gravity of the lifting port and the lifting head can be consistent. Therefore, when the lifting belt is tied to the set plate, the gap between the lifting belt and the impact piece is shortened, which helps to reduce the shaking of the lifting belt when it is pulled up. Secondly, the set plate can increase the contact area between the lifting head and the lifting belt to prevent the lifting belt from slipping and loosening.

[0016] 2. Through the setting of the fixing plate, the second screw hole and the second screw rod, the operator can remove the second screw rod from the second screw hole to disengage the fixing plate from the connection between the lifting head and the limit block, so that the outer ring can be smoothly removed from the lifting head, thereby replacing the outer ring that has been deformed after long-term lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0018] Figure 1 It is a structural schematic diagram of a stable lifting punch provided by the utility model;

[0019] Figure 2 It is a structural schematic diagram of the lifting head provided by the utility model;

[0020] Figure 3 It is a structural schematic diagram of the outer ring provided by the utility model;

[0021] Figure 4 It is a schematic diagram of the top view structure of the lifting head and the outer ring provided by the utility model;

[0022] Figure 5 The utility model provides Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0023] Impact member-1; lifting head-2; outer ring-3; guide groove-4; limit groove-5; belt plate-6; limit block-7; lifting port-8; fixing plate-9; first screw rod-10; first screw hole-11; second screw hole-12; second screw rod-13. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Embodiment 1: In the prior art, the hoisting structure of the punch is usually to set several lifting rings on the outside of the punch. When the punch needs to be hoisted and moved to the bottom of the press, the two ends of the lifting belt need to be hung on the lifting ring and the crane respectively, and then the punch is lifted by the crane. However, since the lifting ring is mostly fixed on the outside of the punch by convex protrusion, there will be a certain distance between the lifting belt and the body of the punch after the lifting belt is tied to the lifting ring. Therefore, when the crane lifts the punch upward, the force on the lifting belt will be applied to this distance, rather than directly to the center of the punch. This causes the center of gravity of the punch to be relatively unstable, which is easily affected by external forces and shakes, posing certain safety hazards. At the same time, the contact area between the single lifting ring and the lifting belt is small. When the crane moves the lifted punch, there is a risk of the lifting belt slipping and loosening.

[0026] Therefore, in order to solve the problem that the existing punch will shake due to the dispersed center of gravity during hoisting, and is easily affected by external forces, and the hoisting belt has the risk of slipping and loosening due to the small contact area between the lifting ring and the lifting belt, the function of gathering the center of gravity and stabilizing the punch is realized, the utility model discloses a stable hoisting punch, refer to Figure 1 , Figure 3 and Figure 4, comprising an impact piece 1 and a lifting head 2 fixed on the top of the impact piece 1, the lifting head 2 is cylindrical, and guide grooves 4 are vertically opened on four mutually parallel end faces of the column of the lifting head 2, an outer ring 3 is arranged on the column of the lifting head 2, wherein a sleeve plate 6 corresponding to the guide groove 4 is arranged on the side of the outer ring 3 close to the lifting head 2, and the sleeve plate 6 is embedded in the guide groove 4, and a gap is left between the side of the sleeve plate 6 close to the guide groove 4 and the bottom surface of the guide groove 4;

[0027] In this embodiment, preferably, a lifting port 8 is provided on the side of the strap plate 6 facing the outer ring 3, and the lifting port 8 is parallel to the guide groove 4 with the strap plate 6 as the center. Through the above structure, one end of the lifting belt can first pass through the lifting port 8 and then pass through the guide groove 4 in the opposite direction, so that the lifting belt can be hung on the strap plate 6 in a U shape.

[0028] In the present embodiment, preferably, the belt plate 6, the outer ring 3, the lifting head 2 and the guide groove 4 are at the same height. Through the above structure, the lifting belt connected to the belt plate 6 needs to be completely clamped on one side of the lifting head 2, so as to expand the contact area between the lifting belt and the belt plate 6, so that the force point of the lifting head 2 can be more stable.

[0029] In this embodiment, the impact member 1 is a cylinder with one side being tapered, and the lifting head 2 is fixed to the end of the impact member 1 away from the tapered end.

[0030] In this embodiment, in order to further increase the contact area between the lifting belt and the lifting head 2 , preferably, the outer ring 3 is a hollow barrel-shaped structure, and the outer ring 3 is completely sleeved on the outside of the lifting head 2 .

[0031] Working principle: by setting the guide groove 4 and the set plate 6, the set plate 6 can be fixed on the lifting head 2 in an embedded form, so that the center of gravity of the lifting port 8 and the lifting head 2 can be kept consistent. Therefore, when the lifting belt is tied to the set plate 6, the gap between the lifting belt and the impact piece 1 is shortened, so that the lifting belt can directly act on the impact piece 1, which helps to reduce the shaking of the lifting belt when it is pulled up. Secondly, the set plate 6 can increase the contact area between the lifting head 2 and the lifting belt to prevent the lifting belt from slipping and loosening.

[0032] During use: When the impact piece 1 needs to be hoisted and moved to the processing table, the operator can first vertically insert one end of the lifting belt from the top of the lifting port 8, and then pull the lifting belt extending from the bottom of the lifting port 8 upward from the bottom of the guide groove 4, so that the lifting belt can extend from the top of the guide groove 4. At this time, the lifting belt can be hung on the belt plate 6 in a U shape, and then the other lifting belts are hung on the belt plates 6 of the other three end faces of the lifting head 2 according to the above method, and the other end of the lifting belt is tied to the lifting belt extending from the guide groove 4 and hung on the external crane, and the lifting belt is pulled by the crane to lift the impact piece 1.

[0033] Embodiment 2: Based on Embodiment 1, the present invention further provides an anti-drop structure for the outer ring 3, see Figure 2 and Figure 5 , and also includes a limit groove 5 and a limit block 7. The limit groove 5 can clamp the limit block 7 when the strap plate 6 passes through the guide groove 4. Specifically, the limit groove 5 is vertically opened on the two parallel inner walls of the guide groove 4, and the limit blocks 7 corresponding to the limit groove 5 are provided on both sides of the strap plate 6. By clamping the limit block 7 into the limit groove 5, the strap plate 6 can be fixed in the guide groove 4, which helps to avoid the outer ring 3 from slipping off the lifting head 2.

[0034] In this embodiment, preferably, the lifting head 2 is provided with a fixing plate 9 at the opening of the guide groove 4, and the fixing plate 9, the upper and lower ends of the guide groove 4 and the limit block 7 are all provided with a second screw hole 12, and the second screw hole 12 is penetrated by a second screw rod 13. When the strap plate 6 is inserted into the guide groove 4, the fixing plate 9 can be attached to the limit block 7 and the upper and lower ends of the lifting head 2, and the second screw rod 13 can be screwed into the fixing plate 9, so that the fixing plate 9 can fix the strap plate 6 in the guide groove 4.

[0035] In this embodiment, the fixing plate 9 is fixed to the lifting head 2 and the limiting block 7 via a second screw rod 13 .

[0036] In this embodiment, a plurality of first screw holes 11 are provided on the end surface of the column of the lifting head 2 where no guide groove 4 is provided and on the outer ring 3, and a first screw rod 10 is passed through the first screw hole 11. By inserting the first screw rod 10 into the first screw hole 11, the outer ring 3 can be fixed on the lifting head 2, further preventing the outer ring 3 from falling off the lifting head 2.

[0037] During use: when the outer ring 3 needs to be installed on the lifting head 2, the operator can align the strap plate 6 on the inner wall of the outer ring 3 with the guide groove 4 on the lifting head 2, and then put the outer ring 3 on the lifting head 2 from top to bottom. At this time, the limit blocks 7 on both sides of the strap plate 6 will slide along the limit groove 5 as the outer ring 3 moves. When the outer ring 3 completely clamps the lifting head 2, the operator can place the fixing plate 9 on the upper and lower end surfaces of the limit block 7 clamped by the limit groove 5, so that the second screw hole 12 on the fixing plate 9 can be respectively aligned with the lifting head 2 and the second screw hole 12 on the fixing plate 9. The second screw hole 12 on the limit groove 5 is aligned, and finally the second screw rod 13 is inserted into the second screw hole 12, so that the limit block 7 can be fixed in the limit groove 5, so as to maintain the stability of the sleeve plate 6 and the outer ring 3. Secondly, when the outer ring 3 needs to be removed, the operator can remove the second screw rod 13 from the second screw hole 12 to disengage the fixing plate 9 from the connection between the lifting head 2 and the limit block 7, so that the outer ring 3 can be smoothly removed from the lifting head 2, so as to replace the outer ring 3 that has been deformed after long-term lifting.

[0038] Working principle: The fixing plate 9 can fix the limit block 7 in the limit groove 5, so that the outer ring 3 will not move up and down along the lifting head 2. At the same time, the limit groove 5 and the limit block 7 can play an installation guide role, so that there will be no angular deviation when the belt plate 6 passes through the guide groove 4.

[0039] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stable lifting punch, comprising an impact piece (1) and a lifting head (2) fixed on the top of the impact piece (1), characterized in that: The lifting head (2) is cylindrical, and guide grooves (4) are vertically opened on four mutually parallel end faces of the column of the lifting head (2). An outer ring (3) is arranged on the column of the lifting head (2), wherein a sleeve plate (6) corresponding to the guide groove (4) is arranged on a side of the outer ring (3) close to the lifting head (2), and the sleeve plate (6) is embedded in the guide groove (4), and a gap is left between a side of the sleeve plate (6) close to the guide groove (4) and a groove bottom surface of the guide groove (4).

2. A stable lifting punch according to claim 1, characterized in that: A lifting opening (8) is provided on the side of the belt plate (6) facing the outer ring (3), and the lifting opening (8) is parallel to the guide groove (4) with the belt plate (6) as the center.

3. A stable lifting punch according to claim 1, characterized in that: A plurality of first screw holes (11) are provided on the end surface of the column of the lifting head (2) where no guide groove (4) is provided and on the outer ring (3), and a first screw rod (10) is inserted into the first screw hole (11).

4. A stable lifting punch according to claim 1, characterized in that: Limiting grooves (5) are vertically provided on two parallel inner walls of the guide groove (4), and limiting blocks (7) corresponding to the limiting grooves (5) are provided on both sides of the sleeve plate (6).

5. A stable lifting punch according to claim 1, characterized in that: The lifting head (2) is provided with a fixing plate (9) at the opening of the guide groove (4), and second screw holes (12) are provided on the fixing plate (9), the upper and lower ends of the guide groove (4) and the limit block (7), and a second screw rod (13) is inserted into the second screw hole (12).

6. A stable lifting punch according to claim 2, characterized in that: The outer ring (3) is in the form of a hollow barrel, and the outer ring (3) is completely sleeved on the outside of the lifting head (2).

7. A stable lifting punch according to claim 2, characterized in that: The belt plate (6), the outer ring (3), the lifting head (2) and the guide groove (4) are at the same height.

8. A stable lifting punch according to claim 5, characterized in that: The fixing plate (9) is fixed to the lifting head (2) and the limiting block (7) via a second screw rod (13).

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