Stroke limiting device for lower die floating plate of automobile progressive die

Abstract

The utility model discloses a stroke limiting device for a lower die floating plate of an automobile progressive die, and belongs to the technical field of compression molding dies. The die comprises a lower die base and a lower floating material plate installed on the upper portion of the lower die base, and a pressure source mechanism for driving the lower floating material plate to ascend and descend is installed on the lower die base and corresponds to the lower portion of the lower floating material plate, and a follower capable of ascending and descending along with the lower floating material plate is installed on the lower surface of the lower floating material plate. The upper surface of the lower die base is detachably connected with a retainer. A first protruding portion protruding out of the side wall of the follower is arranged at the bottom end of the follower, and a second protruding portion used for being connected with the first protruding portion in a hooking mode in a hand-held mode is arranged at the position, located at the stroke limit position of the lower floating plate, of the side portion of the retainer. And when the device is applied to the automobile progressive die, the cost can be saved, and the repair and maintenance efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compression molding dies, in particular to a travel limiting device for a floating plate of a lower die of an automobile progressive die. Background Art

[0002] With the booming development of the global automotive industry and continuous technological innovation, competition in the industry is becoming increasingly fierce.

[0003] At present, as automobiles become more and more functional and compact in structure, the processing precision requirements for product parts are getting higher and higher. Therefore, the structural reliability and interchangeability of the mold itself are being improved. The goal is to simplify the complex to increase competitive advantage, enhance technical strength and reduce costs and increase efficiency. Therefore, it is urgent to innovate the original mold structure.

[0004] Traditional automotive-grade feed mold travel limit screw travel sleeve (CSRE) and travel limit screw (CSR) are both round and must be installed inside the lower floating plate. Therefore, they occupy most of the space inside the mold. In addition, the mounting holes rely on CNC precision machining. Due to the limited installation space for the travel limit screw travel sleeve (CSRE) and the vibration during the production process of the travel limit screw (CSR), it becomes loose and falls off, which reduces the competitive advantage of the mold and leads to reduced economic benefits. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects of the prior art and provide a travel limit device for the floating plate of the lower die of the automobile progressive die, which is used to solve the problem of die space occupation and the problem of rapid disassembly during quick repair and maintenance of the die.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] The utility model discloses a travel limiting device for a lower die floating plate of a progressive die for an automobile, comprising:

[0008] A lower die base and a lower floating plate installed on the upper part of the lower die base, wherein the lower die base is provided with a pressure source mechanism for driving the lower floating plate to rise and fall corresponding to the lower floating plate.

[0009] The lower surface of the lower floating plate is provided with a follower which can follow the lower floating plate in the vertical direction, and the upper surface of the lower die base is detachably connected with a stopper.

[0010] The bottom end of the follower is provided with a first protrusion protruding from its side wall, and the side of the stopper is located at the stroke limit position of the lower floating plate and is provided with a second protrusion for hooking and connecting with the first protrusion in a hand-in-hand manner.

[0011] Furthermore, the follower also includes a connecting piece, and the connecting piece passes through the follower and is connected to the lower floating plate.

[0012] Furthermore, the stopper also includes a connecting piece, and the connecting piece passes through the stopper and is connected to the lower die base.

[0013] Furthermore, a buffer is fixedly connected to the hooking contact position of the first protrusion and / or the second protrusion.

[0014] Furthermore, the connecting piece is a hexagon socket bolt.

[0015] Furthermore, the lower die base also includes a lower supporting plate, a lower pad and a lower template fixedly connected to the upper surface of the lower die base in sequence. The supporting plate is fixedly connected to the lower die base through lower pads, thereby supporting the lower die base.

[0016] Furthermore, a guide mechanism is fixedly connected to the side of the lower floating plate away from the follower, and the guide mechanism is slidably connected to the guide hole of the lower die base.

[0017] Furthermore, the pressure source mechanism is a nitrogen spring.

[0018] In the above technical solution, the utility model provides a travel limit device for the lower die floating plate of an automobile-grade feed die. Compared with the prior art, a follower is installed on the lower surface of the lower floating plate for following the movement of the lower floating plate. A first protrusion is provided at the bottom end of the follower, and a stopper is detachably connected to the upper surface of the lower die base. A second protrusion is provided on the side of the stopper. The follower is hooked and connected with the second protrusion of the stopper in a hand-in-hand manner through the first protrusion to limit the limit position of the travel of the lower floating plate, and the lower die base and the stopper can be detachably connected, and the stopper can be disassembled for maintenance. The travel limit device has the following beneficial effects:

[0019] 1) Simple structure, can be disassembled at any time;

[0020] 2) Does not take up too much space in the mold;

[0021] 3) It is simple to process and install, and its application in automotive progressive dies can save costs and improve repair and maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the closed state of the lower die of the lower die floating plate stroke limit device for the automobile progressive die disclosed in the utility model;

[0024] Figure 2 The utility model discloses a schematic diagram of the lower die opening and closing state of a lower die floating plate stroke limiting device for a progressive die of an automobile.

[0025] Description of reference numerals:

[0026] 1. Material; 2. Lower floating plate; 3. Lower template; 4. Lower pad; 5. Lower die base; 6. Lower pad; 7. Lower support plate; 8. Guide mechanism; 9. Nitrogen spring; 10. Follower; 101. First protrusion; 11. Stopper; 111. Second protrusion; 12. Buffer; 13. Connector. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] See also Figure 1 As shown;

[0029] The utility model is a travel limit device for the floating plate of the lower die of the automobile progressive die, comprising:

[0030] The lower die base 5 and the lower floating plate 2 installed on the upper part of the lower die base 5, the upper surface of the lower floating plate 2 carries the material 1, the material 1 is an automobile panel, and the lower die base 5 is provided with a pressure source mechanism for driving the lower floating plate 2 to rise and fall. Specifically, the pressure source mechanism is a nitrogen spring 9 in the prior art. When the mold is dynamically closed, the nitrogen spring 9 under the lower floating plate 2 is in a tense state. After the mold is dynamically opened and closed, the nitrogen spring 9 releases the compression stroke.

[0031] The lower die base 5 further includes a lower supporting plate 7, a lower pad 4 and a lower template 3 which are fixed to the upper surface of the lower die base 5 in sequence. The supporting plate is fixedly connected to the lower die base 5 through a lower pad 6, thereby supporting the lower die base 5.

[0032] The lower surface of the lower floating plate 2 is provided with a follower 10 which can follow the rise and fall thereof. The side of the lower floating plate 2 away from the follower 10 is fixedly connected with a guide mechanism 8 which is slidably connected to the guide hole of the lower die base 5.

[0033] The upper surface of the lower die base 5 is detachably connected to a stopper 11 that can be hooked and stopped with the follower 10 in the form of a hand. In other words, one part of the travel limit device is installed below the lower floating material plate 2 and moves with the lower floating material plate 2, and the other part is installed above the lower die base 5 and is in a stationary state. The two parts are hung in the form of a hand;

[0034] Among them, the bottom side of the follower 10 is provided with a first protrusion 101 protruding from its side wall, and the side of the stopper 11 is provided with a second protrusion 111 at the limit position of the travel of the lower floating plate 2, so that when the follower 10 follows the lower floating plate 2 to move to the position of the second protrusion 111, the first protrusion 101 and the second protrusion 111 are hooked and connected in the form of holding hands (such as Figure 2 As shown), after the lower floating plate 2 rises and the second protrusion 111 of the stopper 11 constrains the height, the material 1 above the lower floating plate 2 is fed by the feeder according to the set step distance, thereby repeatedly moving;

[0035] Preferably, in order to eliminate the collision noise when the first protrusion 101 and the second protrusion 111 contact each other, a buffer member 12 is fixedly connected to the hook contact position of the first protrusion 101 and the second protrusion 111. Of course, the buffer member 12 can also be fixedly connected to the second protrusion 111, or the buffer member 12 can be fixedly connected to the hook contact position of the first protrusion 101 and the second protrusion 111 at the same time. The buffer member 12 is a polyurethane block, a rubber block or other rubber block that can play a buffering role, and can play the role of silent damping.

[0036] Preferably, both the follower 10 and the stopper 11 further include a connecting member 13 . The connecting member 13 passes through the follower 10 and is connected to the lower floating plate 2 . The connecting member 13 passes through the stopper 11 and is connected to the lower die base 5 .

[0037] Specifically, the connecting piece 13 is a hexagon socket bolt in the prior art, and the stopper 11 and the follower 10 are both provided with countersunk holes, and the connecting piece 13 is installed through the countersunk holes, and the thread holes are processed at the corresponding positions of the lower floating plate 2 and the lower die base 5 to install the connecting piece 13, which is quick and convenient. The avoidance of the stopper 11 and the follower 10 can also be processed by an ordinary milling machine. Subsequent maintenance only requires disassembly of the stopper 11 fixed above the lower die base 5. The disassembled lower floating plate 2 can be directly lifted out and placed on the ground. The follower 10 at the lower end of the lower floating plate 2 can support the operation of the lower floating plate 2, which is more efficient and quick.

[0038] In the above technical solution, the utility model provides a travel limit device for the lower die floating plate of the automobile progressive die, and its working principle is as follows:

[0039] When the mold is closed, Figure 1 As shown, the follower 10 on the lower floating plate 2 is not in contact with the stopper 11 on the lower die base 5, and the nitrogen spring 9 is in a compressed state.

[0040] When the mold opens and closes, Figure 2 As shown, the follower 10 on the lower floating plate 2 contacts the stopper 11 on the lower die base 5, and is in soft contact through the buffer 12 in the middle, and the nitrogen spring 9 is in an extended state.

[0041] When the action is carried out in sequence, the mold closes - the nitrogen spring 9 is pressurized - the mold opens and closes - the nitrogen spring 9 extends to lift the lower floating plate 2 - the follower 10 and the stopper 11 limit the position - the material 1 is fed according to the set step distance - the mold closes, and this is repeated;

[0042] Under normal working conditions, the stroke limit device is stable and low-noise. After subsequent production, it is convenient to quickly disassemble and maintain the remaining parts inside the mold without any impact on the accuracy of the parts.

[0043] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. The travel limit device for the lower die floating plate of the automotive progressive die includes: A lower die base (5) and a lower floating plate (2) mounted on the upper portion of the lower die base (5), wherein a pressure source mechanism for driving the lower floating plate (2) to rise and fall is mounted below the lower die base (5) corresponding to the lower floating plate (2), and the mechanism is characterized in that: The lower surface of the lower floating plate (2) is provided with a follower (10) capable of following its rise and fall, and the upper surface of the lower die base (5) is detachably connected with a stopper (11); The bottom end of the follower (10) is provided with a first protrusion (101) protruding from its side wall, and the side of the stopper (11) is provided with a second protrusion (111) at the stroke limit position of the lower floating plate (2) for hooking and connecting with the first protrusion (101) in a hand-in-hand manner.

2. The travel limit device for the lower die floating plate of the automobile progressive die according to claim 1 is characterized in that ； The follower (10) further comprises a connecting member (13), and the connecting member (13) passes through the follower (10) and is connected to the lower floating plate (2).

3. The travel limiting device for the lower die floating plate of the automobile progressive die according to claim 1, characterized in that: The stopper (11) further comprises a connecting member (13), and the connecting member (13) passes through the stopper (11) and is connected to the lower die base (5).

4. The travel limit device for the lower die floating plate of the automobile progressive die according to claim 1 is characterized in that ； The first protrusion (101) and / or the second protrusion (111) are hooked and fixedly connected to a buffer component (12) at the contact position.

5. The travel limit device for the lower die floating plate of the automobile progressive die according to claim 3 is characterized in that ； The connecting piece is a hexagon socket bolt.

6. The travel limiting device for the lower die floating plate of a progressive die for automobiles according to any one of claims 1 to 4, It is characterized by: The lower die base (5) further comprises a lower supporting plate (7), a lower pad (4) and a lower template (3) which are sequentially fixed to the upper surface of the lower die base (5); the supporting plate is fixedly connected to the lower die base (5) via a lower pad (6), thereby supporting the lower die base (5).

7. The travel limiting device for the lower die floating plate of a progressive die for automobiles according to any one of claims 1 to 4, It is characterized by: The lower floating plate (2) is fixedly connected with a guide mechanism (8) on the side away from the follower (10), and the guide mechanism (8) is slidably connected to the guide hole of the lower die base (5).

8. The travel limiting device for the lower die floating plate of a progressive die for automobiles according to any one of claims 1 to 4, characterized in that ； The pressure source mechanism is a nitrogen spring (9).

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