An inclined wedge mechanism and a trimming and punching die

Abstract

The present invention relates to a cam mechanism and a trimming and punching die, belonging to the technical field of die processing. The cam mechanism includes a cam base, a cam slide block, a cam driving block and a cam self-locking device. A sliding surface is provided on the cam base, and the cam slide block can slide along the sliding surface under the drive of the cam driving block; a limiting protrusion is provided at one end of the sliding surface, and the cam self-locking device is provided at the other end; the cam self-locking device includes a fixed seat and a locking block, and a sliding groove for the locking block to slide is provided in the fixed seat; in the locked state, the locking block partially protrudes from the fixed seat and protrudes from the sliding surface; in the unlocked state, the locking block retracts into the fixed seat and at least does not protrude from the sliding surface; The present invention provides a cam mechanism and a trimming and punching die, which are convenient for disassembling and assembling the cam slide block and are convenient for maintenance, helping to extend the equipment maintenance cycle and service life.

Description

Technical Field

[0001] The present invention relates to a swivel wedge mechanism and a trimming and punching die, belonging to the technical field of die processing. Background Art

[0002] As an important lateral punching implementation mechanism, the swivel wedge mechanism is widely used in trimming and punching dies and needs to be regularly maintained in daily use. In the maintenance of trimming and punching dies, the maintenance of the swivel wedge is relatively important. For the existing swivel wedge mechanism, the baffle of the swivel wedge needs to be removed to take out the swivel wedge slider for maintenance, so the disassembly and assembly of the baffle of the swivel wedge are relatively frequent. And it is not convenient for workers to disassemble and assemble, and it takes a lot of man-hours during production line operation. Also, due to the short maintenance cycle, the bolts and the bottom hole threads are severely worn due to frequent disassembly and assembly of the fixed baffle, and the service life of the workpiece is shortened. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a swivel wedge mechanism and a trimming and punching die, in which the disassembly and assembly of the swivel wedge slider are convenient, which is conducive to maintenance and helps to extend the equipment maintenance cycle and service life.

[0004] To achieve the above purpose, the present invention provides a swivel wedge mechanism, which includes a swivel wedge base, a swivel wedge slider, a swivel wedge driving block and a swivel wedge self-locking device. A sliding surface is provided on the swivel wedge base, and the swivel wedge slider can slide along the sliding surface under the drive of the swivel wedge driving block. A limit protrusion is provided at one end of the sliding surface, and the swivel wedge self-locking device is provided at the other end. The swivel wedge self-locking device includes a fixed seat and a locking block. A chute for the locking block to slide is provided in the fixed seat. In the locked state, the locking block partially extends out of the fixed seat and protrudes from the sliding surface. In the unlocked state, the locking block retracts into the fixed seat and at least does not protrude from the sliding surface.

[0005] Further, a spring is also provided in the fixed seat. In the locked state, the locking block protrudes from the sliding surface under the elastic force of the spring.

[0006] Further, a stroke limit block is provided on the locking block, and a relief groove is provided in the fixed seat. The spring is supported between the stroke limit block and the inner wall of the relief groove.

[0007] Further, the locking block includes a guiding section and a clamping section, and the stroke limit block is arranged at the transition connection between the guiding section and the clamping section.

[0008] Further, the chute includes a stroke groove through which the clamping section can slide and a sliding matching groove through which the guiding section can slide.

[0009] Further, the wedge mechanism further includes a handle. A sliding hole communicating with the chute is further formed in the fixed seat. The handle passes through the sliding hole and is connected to the locking block to control the sliding of the locking block.

[0010] Further, the wedge mechanism further includes a cover plate fixed to the fixed seat, and the cover plate can at least cover the chute.

[0011] Further, the fixed seat is fixed to the wedge base through fixing screws passing through the fixed seat and the cover plate, and the side surface of the fixed seat is at least not higher than the sliding surface.

[0012] Further, the cover plate is fixed to the fixed seat by countersunk head screws.

[0013] An embodiment of the present invention further provides a trimming and punching die, which includes the wedge mechanism described in any one of the above.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0015] In the locked state, the locking block in the wedge self-locking device can protrude from the sliding surface and cooperate with the limit protrusion to limit the sliding stroke of the wedge slider within the sliding surface; when the wedge slider needs to be taken out for maintenance or replacement, the locking block in the wedge self-locking device can retract into the fixed seat and at least not protrude from the sliding surface, so that the wedge slider can slide out along the sliding surface. There is no cumbersome disassembly and assembly process, which can reduce the wear of assembled workpieces and operation man-hours, and helps to extend the service life of the wedge mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of a wedge mechanism provided by an embodiment of the present invention;

[0017] Figure 2 is a three-dimensional exploded structural schematic diagram of a wedge self-locking device and a cover plate of a wedge mechanism provided by an embodiment of the present invention;

[0018] Figure 3 is a structural schematic diagram of a wedge self-locking device provided by an embodiment of the present invention.

[0019] Reference numerals: 1 - wedge base, 2 - wedge slider, 3 - wedge driving block, 4 - wedge self-locking device, 5 - sliding surface, 6 - limit protrusion, 7 - fixed seat, 8 - locking block, 9 - chute, 10 - spring, 11 - stroke limit block, 12 - relief groove, 13 - guiding section, 14 - clamping section, 15 - stroke groove, 16 - sliding mating groove, 17 - handle, 18 - sliding hole, 19 - cover plate, 20 - fixing screw, 21 - countersunk head screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0022] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0023] As shown in the drawings, a wedge mechanism includes a wedge base 1, a wedge slider 2, a wedge driving block 3 and a wedge self-locking device 4. A sliding surface 5 is provided on the wedge base 1, and the wedge slider 2 can slide along the sliding surface 5 under the drive of the wedge driving block 3; a limiting protrusion 6 is provided at one end of the sliding surface 5, and the wedge self-locking device 4 is provided at the other end; the wedge self-locking device 4 includes a fixed seat 7 and a locking block 8, and a sliding groove 9 for the locking block 8 to slide is provided in the fixed seat 7; in the locked state, the locking block 8 partially extends out of the fixed seat 7 and protrudes from the sliding surface 5 to block the wedge slider 2 from sliding out; in the unlocked state, the locking block 8 contracts into the fixed seat 7 and at least does not protrude from the sliding surface 5 to facilitate the removal of the wedge slider 2.

[0024] The wedge mechanism provided by the embodiment of the present invention is configured with a wedge self-locking device. In the locked state, the locking block 8 in the wedge self-locking device can protrude from the sliding surface 5 and cooperate with the limit protrusion 6 to limit the sliding stroke of the wedge slider 2 within the sliding surface 5. When the wedge slider 2 needs to be taken out for maintenance or replacement, the locking block 8 in the wedge self-locking device can contract into the fixed seat 7 and at least not protrude from the sliding surface 5, so that the wedge slider 2 can slide out along the sliding surface 5, without cumbersome disassembly and assembly processes (such as the disassembly and assembly processes of bolts and baffles in the prior art), which can reduce the wear of the assembled workpiece and help extend the service life of the wedge mechanism.

[0025] In one embodiment, a spring 10 is further provided in the fixed seat 7. In the locked state, even without external force, the spring 10 can, through its own reaction force, urge the locking block 8 to remain protruding from the sliding surface 5 to prevent the wedge slider from sliding out, with a simple and reliable structure. It should be understood that the elastic force of the spring 10 can be the reaction force generated when the spring 10 is compressed or the return force generated when the spring 10 is stretched. Therefore, in one embodiment, a stroke limit block 11 is provided on the locking block 8, and a relief groove 12 is provided in the fixed seat 7. The locking block 8 can drive the stroke limit block 11 to slide along the relief groove 12, but restricted by the stroke limit block 11, the locking block 8 cannot slide out of the relief groove 12 along the sliding direction. As Figure 3 shown, the spring 10 can be placed in the relief groove 12 and supported between the stroke limit block 11 and the left inner wall of the relief groove 12. When the locking block 8 slides to the rightmost side, the spring 10 should be in a compressed state, and the reaction force of the spring 10 keeps the locking block 8 in the position protruding from the sliding surface 5. However, it is not limited to this. The spring 10 can also be connected between the stroke limit block 11 and the right inner wall of the relief groove 12. In the free state of the spring 10, the locking block 8 can maintain the position protruding from the sliding surface 5. When it is necessary to unlock and take out / insert the wedge slider 2, slide the locking block 8 to the left until the locking block 8 no longer protrudes from the sliding surface. At this time, the spring 8 is in a stretched state, and the locking block 8 can use the return force of the spring 10 to reset.

[0026] In one embodiment, the locking block 8 includes a guiding section 13 and a clamping section 14, and the stroke limit block 11 is arranged at the transition connection between the guiding section 13 and the clamping section 14. Correspondingly, the sliding groove 9 includes a stroke groove 15 through which the clamping section 14 can slide and a sliding matching groove 16 through which the guiding section 13 can slide. Both the stroke groove 15 and the sliding matching groove 16 communicate with the outside of the fixed seat. When the locking block 8 slides, the guiding section 13 slides along the sliding matching groove 16, which can be used to guide the sliding of the locking block 8. The clamping section 14 slides along the stroke groove 15 and can extend out of the fixed seat 7. When it protrudes from the sliding surface 5, it can block the wedge slider 2 from sliding out.

[0027] In one embodiment, the above-mentioned wedge mechanism further includes a handle 17, and the fixed seat 7 is also provided with a sliding hole 18 that penetrates the sliding groove 9. The handle 17 penetrates the sliding hole 18 and is connected to the locking block 8 to control the sliding of the locking block 8. In this embodiment, the sliding hole 18 is waist-shaped and extends along the sliding direction of the locking block 8, which can play a sliding guide role for the handle 17. The function of the handle 17 is to facilitate the operator to change the position of the locking block by external operation. However, it is not limited to this. As an improvement and deformation of this embodiment, the handle can also be connected to the locking block 8 through a gear pair. Specifically, it can be: a gear is set on the handle, and a rack meshing with the gear is arranged on the locking block 8. The gear is driven to rotate by turning the handle, thereby driving the locking block to slide in the specified direction. The driving structure of the gear pair has a stronger load capacity.

[0028] In one embodiment, the above-mentioned inclined wedge mechanism also includes a cover plate 19 fixed on the fixed seat 7, and the cover plate 19 can at least cover the slide groove 9, so that the components in the fixed seat 7 are relatively isolated and closed, thereby protecting the internal components, reducing the interference of the external environment on the internal components, extending the service life, and improving reliability.

[0029] The fixing seat 7 is fixed to the wedge base 1 by fixing screws 20 penetrating the fixing seat 7 and the cover plate 19, and the side surface of the fixing seat 7 is at least not higher than the sliding surface 5;

[0030] During installation, the cover plate 19 is first connected to the fixed seat 7 to form an independent wedge self-locking device, and then the wedge self-locking device is connected to the wedge base 1, but the side of the fixed seat 7 should not exceed the sliding surface 5 to ensure that the wedge slider can slide out;

[0031] The inclined wedge mechanism provided in the embodiment of the present invention does not require frequent disassembly, effectively preventing parts wear caused by frequent disassembly and thus affecting the structural strength; a nested design is adopted between the components, and there is no need to repeatedly disassemble the baffle screws, so it can be used in a relatively small space, thereby improving space utilization.

[0032] In one embodiment, the cover plate 19 is fixed to the fixing seat 7 by countersunk screws 21. During assembly, the cover plate 19 can be arranged between the fixing seat 7 and the inclined wedge base 1. The countersunk screws 21 can make the cover plate 19 fit tightly with the inclined wedge base 1, thereby enhancing the integrity of the structure and making the structure more compact.

[0033] The embodiment of the present invention further provides a trimming die, which includes the aforementioned inclined wedge mechanism.

[0034] The trimming and punching die provided by the embodiment of the present invention can remove or install the angle wedge slider without removing the screws, thus preventing production accidents caused by the angle wedge slider falling out during die production due to the unfastened baffle screws; and applying the foregoing angle wedge mechanism to the trimming and punching die does not require frequent disassembly and assembly of the angle wedge, is simple, convenient, time-saving and labor-saving, and can extend the maintenance cycle and service life.

[0035] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. An inclined wedge mechanism, characterized in that, It includes a wedge base, a wedge slider, a wedge driving block and a wedge self-locking device. A sliding surface is provided on the wedge base, and the wedge slider can slide along the sliding surface under the drive of the wedge driving block; a limiting protrusion is provided at one end of the sliding surface, and the wedge self-locking device is provided at the other end; the wedge self-locking device includes a fixed seat and a locking block, and a sliding groove for the locking block to slide is provided in the fixed seat; in the locked state, the locking block partially protrudes from the fixed seat and protrudes from the sliding surface. In the unlocked state, the locking block retracts into the fixed seat and at least does not protrude from the sliding surface. A spring is further provided in the fixed seat; in the locked state, the locking block remains protruding from the sliding surface under the elastic force of the spring; a stroke limiting block is provided on the locking block, a relief groove is provided in the fixed seat, and the spring is supported between the stroke limiting block and the inner wall of the relief groove; the locking block includes a guiding section and a clamping section, and the stroke limiting block is provided at the transition connection between the guiding section and the clamping section; the sliding groove includes a stroke groove through which the clamping section can slide and a sliding mating groove through which the guiding section can slide.

2. The angled wedge mechanism according to claim 1, characterized in that It further includes a handle. A sliding hole communicating with the sliding groove is further opened on the fixed seat, and the handle passes through the sliding hole and is connected to the locking block to control the sliding of the locking block.

3. The angled wedge mechanism according to claim 1, characterized in that, It further includes a cover plate fixed on the fixed seat, and the cover plate can at least cover the sliding groove.

4. The angled wedge mechanism according to claim 3, characterized in that, The fixed seat is fixed on the wedge base by fixing screws passing through the fixed seat and the cover plate, and the side surface of the fixed seat is not higher than the sliding surface.

5. The angled wedge mechanism according to claim 3 or 4, characterized in that, The cover plate is fixed on the fixed seat by countersunk head screws.

6. A trimming and punching die, characterized in that, It includes the wedge mechanism according to any one of claims 1 to 5.

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