A bending machine front clamp mechanism

Abstract

The utility model discloses a front pressboard mechanism of bending machine, through the elastic body and upper die clamping, the elasticity of elastic body can effectively support to upper die, and can segment clamping, when the upper die has a plurality of times, every segmented upper die will be pressed by elastic body in different positions, even if every segmented die's film handle thickness has deviation, also can be clamped by elastic body and not loose, simultaneously, the position that corresponds upper die slot mouth is provided with the tension strip, and the side that front pressboard mechanism of bending machine is away from tension strip is fixedly connected through the counterbore fixing connector, and the connector is fixedly combined with operating part, and the operating part is pulled, and the connector and tension strip can be driven away from upper die slot mouth, realize the vertical taking down or installing of arbitrary upper die alone. Therefore, the utility model has the advantages of good upper die fixing effect, high dismounting efficiency.

Description

Technical Field

[0001] This utility model relates to a front pressure plate mechanism for a bending machine, and more particularly to a front pressure plate mechanism for a bending machine that has a good upper die fixing effect and high disassembly and assembly efficiency. Background Technology

[0002] The quick-clamp mechanism of a bending machine is a clamping device for installing the upper die, and it is an essential component of every bending machine. Currently, the front pressure plate of the quick-clamp mechanism uses a lever or eccentric principle to clamp the upper die. Existing quick-clamp mechanisms have a single pressure plate structure for the front pressure plate, where the upper die is loaded or unloaded by loosening or clamping. When clamping three or more segmented upper dies on the same front pressure plate, due to variations in the die shank thickness and localized elastic deformation of the front pressure plate under pressure, the segmented upper dies cannot be clamped simultaneously. Furthermore, because the front pressure plate is a single pressure plate structure with only loosening or clamping functions, loading and unloading the upper die must be done by pushing it in or moving it out from the side. A bending machine often has dozens of quick-clamp mechanisms installed; to replace an upper die in the middle position, each one must be moved out from the side and then loaded one by one, which is time-consuming and inefficient.

[0003] Therefore, it is necessary to propose an improvement to overcome the shortcomings of the existing technology. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the prior art and provide a front pressure plate mechanism for a bending machine with good upper mold fixing effect and high disassembly and assembly efficiency.

[0005] The technical solution of this utility model is: A front pressure plate mechanism for a bending machine includes an inner side that cooperates with a bending machine support body to clamp an upper die and an outer side away from the upper die. A groove is provided on the inner side where it contacts the upper die, and an elastic body is disposed within the groove, with a portion of the elastic body protruding from the groove to elastically clamp the upper die. The upper die has a slot corresponding to the inner side, and a countersunk hole corresponding to the slot on the outer side. A connector is disposed within the countersunk hole, and a pull bar is disposed on the inner side corresponding to the slot. The pull bar extends into the slot and engages with the upper die. The pull bar is fixedly connected to the connector. The connector has an operating part protruding from the outer side; pulling the operating part moves the connector and the pull bar outward, allowing the upper die to be removed or installed.

[0006] As a preferred technical solution, the groove is semi-circular and the elastomer is cylindrical.

[0007] As a further preferred technical solution, the cylindrical elastomer is a cylindrical helical spring or a cylindrical rubber strip.

[0008] As a preferred technical solution, the distance by which the elastomer protrudes from the groove is no greater than 0.5 mm.

[0009] As a preferred technical solution, plugs are provided at both ends of the groove, and the elastic body is confined within the groove by the plugs.

[0010] As a preferred technical solution, the countersunk hole is a square countersunk hole, and the connecting piece is correspondingly square.

[0011] As a preferred technical solution, the connector and the pull bar are fixedly connected by screws.

[0012] As a preferred technical solution, the operating part and the connecting member are fixedly connected by screws.

[0013] As a preferred technical solution, the operating part is a pull ring.

[0014] As a preferred technical solution, there are multiple upper molds, and the pull strip is engaged with the slots of the multiple upper molds.

[0015] This utility model discloses a front pressure plate mechanism for a bending machine. An elastic body clamps the upper die, effectively supporting it. The elastic body can clamp the upper die in segments. When there are multiple upper dies, each segment is held in place by the elastic body at different positions. Even if the thickness of the die shank varies among segments, the elastic body ensures a secure clamping. Simultaneously, a pull bar is provided at the corresponding upper die slot. A connecting piece is fixed to the front pressure plate mechanism away from the pull bar via a countersunk hole. The connecting piece is fixedly connected to the operating part. Pulling the operating part moves the connecting piece and pull bar away from the upper die slot, allowing for the individual vertical removal or installation of any upper die. Therefore, this utility model has the advantages of good upper die fixing effect and high disassembly and assembly efficiency. Attached Figure Description

[0016] Figure 1 This is a front view of a specific embodiment of the front pressure plate mechanism of a bending machine according to this utility model; Figure 2 for Figure 1 Sectional view along the AA direction; Figure 3 for Figure 1 Sectional view along the BB direction; Figure 4 for Figure 1 The figure shown is a perspective view of a specific embodiment of the front pressure plate mechanism of a bending machine according to the present invention. Detailed Implementation

[0017] 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 embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] The terminology used in the embodiments of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. The singular forms “a,” “said,” and “the” used in the embodiments of this utility model and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise; “multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0019] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0020] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0021] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0022] like Figures 1 to 4 The image shows a specific embodiment of the front pressure plate mechanism of a bending machine according to this utility model. Figures 1 to 3 As shown, a front pressure plate mechanism 10 of a bending machine in this embodiment includes an inner side that cooperates with the bending machine support 30 to clamp the upper die 20 and an outer side that is away from the upper die 20, wherein, as Figure 2As shown, a groove 11 is provided on the inner side of the front pressure plate mechanism 10 at the position where it contacts the upper mold 20. An elastic body 2 is provided in the groove 11. Part of the elastic body 2 is housed in the groove 11, and part of it protrudes from the groove 11. The part of the elastic body 2 protruding from the groove 11 provides elastic support for the upper mold 20, so that the upper mold 20 is elastically clamped between the front pressure plate mechanism 10 and the support body 30. The elastic body 2 presses down on the upper mold 20, and even if each segment of the upper mold 20 is in a different position, it will be elastically clamped by the elastic body 2. When the thickness of the mold shank of each segment of the mold has a certain deviation, the elastic body 2 provides different elastic support for the mold shank with different thicknesses, thereby ensuring that each mold shank can be clamped and does not loosen.

[0023] like Figure 2 As shown, the upper mold 20 has a slot 21 on the inner side corresponding to the front pressure plate mechanism 10, such as... Figure 3 As shown, a countersunk hole 12 is provided on the outer side of the front pressure plate mechanism 10, and a connector 3 is provided inside the countersunk hole 12, such as... Figure 2 As shown, a pull bar 4 is provided on the inner side of the front pressure plate mechanism 10 corresponding to the slot 21. The pull bar 4 extends into the slot 21 and engages with the upper mold 20. The pull bar 4 is fixedly connected to the connecting piece 3. The connecting piece 3 is provided with an operating part 5 with a protruding countersunk hole 12. Pulling the operating part 5 can drive the connecting piece 3 and the pull bar 4 to move outward, thereby disengaging the pull bar 4 from the slot 21, so that the upper mold 20 can be removed or installed, realizing the vertical clamping of the upper mold at any position. When there are multiple upper molds, it is not necessary to remove or install them one by one.

[0024] In this embodiment, the groove 11 is semi-circular, and the elastic body 2 is cylindrical. In practical applications, the cylindrical elastic body 2 can be a cylindrical helical spring or a cylindrical rubber strip. The cylindrical helical spring is installed in the groove 11. The main elastic direction of the cylindrical helical spring is in the extending direction of the groove 11, but its side that contacts the upper mold 20 also has a small amount of elasticity, which is sufficient to elastically clamp the upper mold 20. Figure 4 As shown, in order to confine the elastic body 2 within the groove 11, plugs 6 are provided at both ends of the groove 11. When the elastic body 2 is a cylindrical helical spring, the provision of plugs 6 is particularly important, as it can prevent the cylindrical helical spring from popping out of the groove 11. In order to balance the support of the front pressure plate mechanism 10 on the upper mold 20, and to facilitate the installation and removal of the upper mold 20, in this embodiment, the distance by which the elastic body 3 protrudes from the groove 11 is no more than 0.5 mm.

[0025] like Figure 1 As shown, in this embodiment, the countersunk hole 12 is a square countersunk hole, and the connector 3 is also square.

[0026] like Figure 3As shown, in this embodiment, the connector 3 and the pull bar 4 are fixedly connected by screws 7, and the operating part 5 is fixedly connected to the connector 3 by screws 8. For ease of operation, in this embodiment, the operating part 5 is a pull ring, which is easy to pull outward.

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, there are three upper molds 20, and the pull strip 4 is engaged with the slots 21 of the three upper molds 20. In practical applications, the number of upper molds 20 can be set as needed, and there can be one or more, without affecting the advantages of this utility model.

[0028] This invention relates to a front pressure plate mechanism for a bending machine. An elastic body clamps the upper die, effectively supporting it and allowing for segmented clamping. When multiple upper dies are present, each segment is held in place by the elastic body at different positions. Even with variations in the thickness of the die shank in each segment, the elastic body ensures a secure clamping. A pull bar is positioned at the corresponding upper die slot. A connecting piece is fixed to the side of the front pressure plate mechanism away from the pull bar via a countersunk hole. This connecting piece is fixedly connected to the operating unit. Pulling the operating unit moves the connecting piece and pull bar away from the upper die slot, enabling the individual vertical removal or installation of any upper die. This invention solves the technical problems of inadequate clamping of segmented upper dies in the quick-clamp mechanism of bending machines and the vertical clamping of the upper die in the quick-clamp mechanism. The front pressure plate mechanism of this invention offers advantages such as good upper die fixing and high assembly / disassembly efficiency.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made in accordance with the scope of the claims of this utility model should fall within the technical scope of this utility model.

Claims

1. A front pressure plate mechanism for a bending machine, comprising an inner side that cooperates with a bending machine support to clamp an upper die and an outer side away from the upper die, characterized in that: A groove is provided on the inner side where it contacts the upper mold. An elastic body is provided in the groove, with a portion of the elastic body protruding from the groove to elastically clamp the upper mold. The upper mold has a slot corresponding to the inner side, and a countersunk hole is provided on the outer side corresponding to the slot. A connector is provided in the countersunk hole, and a pull bar is provided on the inner side corresponding to the slot. The pull bar extends into the slot and engages with the upper mold. The pull bar is fixedly connected to the connector. The connector has an operating part protruding from the outer side. Pulling the operating part moves the connector and the pull bar outward, allowing the upper mold to be removed or installed.

2. The front pressure plate mechanism of a bending machine according to claim 1, characterized in that: The groove is semi-circular, and the elastomer is cylindrical.

3. The front pressure plate mechanism of a bending machine according to claim 2, characterized in that: The cylindrical elastomer is a cylindrical helical spring or a cylindrical rubber strip.

4. The front pressure plate mechanism of a bending machine according to claim 1, characterized in that: The distance by which the elastomer protrudes from the groove is no greater than 0.5 mm.

5. The front pressure plate mechanism of a bending machine according to claim 1, characterized in that: The groove is provided with plugs at both ends, and the elastic body is confined within the groove by the plugs.

6. The front pressure plate mechanism of a bending machine according to claim 1, characterized in that: The countersunk hole is a square countersunk hole, and the corresponding connector is square.

7. The front pressure plate mechanism of a bending machine according to claim 1, characterized in that: The connector is fixedly connected to the pull bar by screws.

8. The front pressure plate mechanism of a bending machine according to claim 1, characterized in that: The operating part and the connecting piece are fixedly connected by screws.

9. The front pressure plate mechanism of a bending machine according to claim 1, characterized in that: The operating part is a pull ring.

10. The front pressure plate mechanism of a bending machine according to claim 1, characterized in that: There are multiple upper molds, and the pull strip is engaged with the slots of the multiple upper molds.

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