CN110900533A - Clamping die structure in electric hydraulic tool and machining method and assembling and disassembling method thereof - Google Patents
Clamping die structure in electric hydraulic tool and machining method and assembling and disassembling method thereof Download PDFInfo
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- CN110900533A CN110900533A CN201911247422.8A CN201911247422A CN110900533A CN 110900533 A CN110900533 A CN 110900533A CN 201911247422 A CN201911247422 A CN 201911247422A CN 110900533 A CN110900533 A CN 110900533A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000003754 machining Methods 0.000 title claims description 13
- 238000003825 pressing Methods 0.000 claims abstract description 131
- 230000000903 blocking effect Effects 0.000 claims abstract description 33
- 238000001125 extrusion Methods 0.000 claims description 65
- 238000012545 processing Methods 0.000 claims description 39
- 238000003672 processing method Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 22
- 239000002184 metal Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
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- 238000002474 experimental method Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
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- 238000007792 addition Methods 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
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Abstract
The invention provides a clamping die structure in an electric hydraulic tool, and belongs to the field of electric tools. The clamping die structure comprises a mounting hole, a clamping die head and a clamping die head, wherein the mounting hole is provided with a first hole end and a second hole end, the clamping die head is positioned at the first hole end, and a through hole is formed in the clamping die head; the pressing shaft penetrates through the second hole end, the inner end of the pressing shaft is provided with an extending section which can extend into or out of the through hole, one end of the extending section is provided with a stopper which penetrates out of the through hole, and when the pressing shaft is pressed inwards, the clamping die head enters towards the inner direction of the first hole end and has a resetting trend; the clamping die head is provided with a first state position and a second state position, and when the clamping die head is in the first state position, the axial movement of the pressing shaft is limited; when the clamping die head is in the second state position, the blocking head and the extending section can penetrate out of the through hole. The problems that the existing clamping die structure is troublesome to replace, metal chips are generated in the assembling and disassembling process and the like are solved.
Description
Technical Field
The invention belongs to the field of electric tools, and relates to a clamping die structure in an electric hydraulic tool, a processing method and a loading and unloading method thereof.
Background
In the electronic hydraulic tool field, the card mode structure is indispensable structure, and the card mode structure includes the card die head and presses the axle, and the effect of card mode structure lies in blocking the die holder, and present card mode structure is that to stop the axial that the structure realized pressing the axle through the round pin formula spacing, has not few problems in the reality, specifically as follows:
taking an electric hydraulic tong as an example, as the application No. 2019302031027, the name is the appearance design patent of the electric hydraulic tong, the name is D1, the name is 2018304939037, the name is the appearance design of the hydraulic tong, the name is D2, as shown in the perspective view of D1, a mounting hole for mounting a clamping die head and a pressing shaft is arranged on the inner wall of a tong head, a jack for mounting a split pin is arranged near the mounting hole, as shown in the front view and the rear view of D2, similarly, a mounting hole is arranged on the inner wall of the tong head, a jack is arranged on the side wall of the tong head, the axial displacement of the pressing shaft is still limited by the split pin, the jack penetrates through, as shown in the attached drawings 1 to 3 of the specification, a limiting section with an annular groove on the outer wall is arranged on the pressing shaft, the split pin is inserted into the jack after the pressing shaft and the clamping die head are mounted, the opening position of the jack corresponds to the limiting section, the limiting section of the pressing shaft is limited by the split pin, thereby limiting the axial displacement of the pressing shaft within a certain range. Although this pin-type locking structure effectively achieves the function of limiting the position within the range, it is not satisfactory in practice and has at least the following problems:
1. the clamping die head is a fragile part and needs to be replaced periodically, the cotter pin needs to be knocked out by means of a tool when the structure is disassembled, and knocking operation is difficult and inconvenient due to the small aperture of the jack.
2. In the assembling and disassembling process, metal scraps are inevitably generated by knocking the split pin, and the metal scraps easily enter a moving gap of the pressing shaft and a connecting part between the pressing shaft and the die clamping head, so that the pressing shaft does not move smoothly when pushed, the die clamping head is blocked and the die clamping head is affected, and the die holder cannot be installed.
In view of the above, there is a need for innovation and improvement in the current card mold structure.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a clamping die structure in an electric hydraulic tool, a processing method and a loading and unloading method thereof, wherein the clamping die structure in the electric hydraulic tool and the loading and unloading method thereof are convenient for replacing the clamping die head, the smoothness of movement of parts is not influenced in the loading and unloading process, and the problems that the conventional clamping die structure is troublesome to replace, metal scraps are generated in the loading and unloading process and the like are solved; the processing method of the clamping die structure in the electric hydraulic tool enables the clamping die structure to be processed conveniently, saves working hours, and solves the problems that the existing clamping die structure is complex to process, multiple in steps and the like.
The purpose of the invention can be realized by the following technical scheme: card mould structure among electro-hydraulic tool, including the mounting hole, the mounting hole has first hole end and second hole end, its characterized in that, card mould structure still includes:
the clamping die head is positioned at the first hole end, and a through hole is formed in the clamping die head;
the pressing shaft penetrates through the second hole end, the inner end of the pressing shaft is provided with an extending section which can extend into or out of the through hole, one end of the extending section is provided with a stopper which penetrates out of the through hole, and when the pressing shaft is pressed inwards, the clamping die head enters towards the inner direction of the first hole end and has a resetting trend;
the clamping die head is provided with a first state position and a second state position, and when the clamping die head is in the first state position, the axial movement of the pressing shaft is limited; when the mold clamping head is in the second state position, the blocking head and the extending section can penetrate out of the through hole.
The technical scheme is not only suitable for electric hydraulic pliers, but also suitable for clamping dies in the field and the similar field. The electric hydraulic pliers are described as an example, the first hole end is located on the die clamping surface of the piston rod of the pliers head, the second hole end is located on the side portion of the top of the piston rod, the die clamping head is arranged in the first hole end, the outer end of the die clamping head can be matched with the die holder to clamp, a through hole in the die clamping head penetrates through the through hole, the extending section of the pressing shaft and the blocking head penetrate and penetrate through the through hole, and the pressing shaft is inserted into the second hole end.
The card die head has two status bits, the first status bit is a locking status bit, and the second status bit is a detachable status bit. When the clamping die head is in the first state position, the outer end of the clamping die head is in a state of being capable of being matched with the die holder, the through hole can move in the pressing movement direction of the clamping die head, the position of the through hole is upwards moved in the first state position compared with the position of the through hole in the second state position, in practice, the through hole can also be downwards moved, leftwards moved, rightwards moved and the like, the through hole, the blocking head and the extending section form a mutually clamped state, and the blocking head is limited by the clamping die head, so that the pressing shaft cannot be pulled out; when the die holder is assembled, the pressing shaft is pressed inwards, the pressing shaft acts on the clamping die head to enable the clamping die head to enter inwards, the outer end of the clamping die head enters the mounting hole (at least flush), the die holder is placed at the moment, and the die holder can be installed by loosening the pressing shaft; the second state position is a disassembly state, the card die head is pressed inwards to a preset position, the blocking head and the extending section are in a coaxial communication state with the through hole, the pressing shaft is pulled outwards at the moment, the limitation of the card die head is removed, and the card die head is taken out, so that the replacement of parts can be conveniently carried out, wherein the coaxial communication state refers to a state that the pressing shaft can be detached and does not refer to a state of a coaxial line.
Compared with the prior art, the technical scheme overturns the traditional pin type clamping structure, does not need to knock the cotter pin, directly avoids the problem that the gap is blocked by metal scraps generated by knocking the cotter pin, and fundamentally solves the problem of the existence of the clamping die structure. And meanwhile, a piston rod of the tong head does not need to be drilled for split pin installation.
In addition, the limitation of the axial movement of the pressing shaft does not mean that the pressing shaft is not moved at all in the axial direction, and allows the pressing shaft to move within a certain range in the axial direction. In addition, the appearance of the card mould structure is not provided with the split pin and the hole for installing the split pin, so that a user cannot easily disassemble the card mould structure, the illusion that the card mould structure cannot be disassembled is formed, and the card mould structure can be maintained and replaced only by communicating with a producer, therefore, the card mould structure has confidentiality technically, the technical confidentiality of the card mould structure is realized, the technical key points of the display form are changed into invisible, and lawless persons who make a chance to get the card and are good at stealing the technical confidentiality can be avoided to a certain extent.
In the above die clamping structure of the electrohydraulic tool, when the first state is located, the blocking head has a blocking portion which is blocked with the die clamping head relative to the extending section.
The stop head is clamped with the clamping die head through the blocking part to prevent the pressing shaft from being pulled out. When the clamping die head is in the second state position, the blocking part can enter the through hole again, so that the pressing shaft is pulled out, and the blocking part also realizes the conversion of self functions in the switching process of different state positions.
In the clamping die structure of the electric hydraulic tool, the extending section and the blocking head are both cylindrical, and the diameter of the blocking head is larger than that of the extending section.
In the technical scheme, the blocking part is the partial bottom of the blocking head, the blocking head and the stretching-in section can be in coaxial connection or in non-coaxial connection, and the blocking head and the stretching-in section with the structure are convenient to process.
In the die clamping structure of the electric hydraulic tool, the extending section is cylindrical, and the stopper is hook-shaped.
In this technical solution, the stopper is in the shape of a hook, and the blocking portion is a hook portion of the hook, where the hook may not have a sharp end. In practice, the retaining head structure has various types, and can also be a spherical structure, a curved structure and the like, so that the retaining head structure capable of completing the retaining and clamping function falls into the protection range of the technical scheme.
The whole circular cylinder that is of card die head, it just runs through to perforate for the round hole card die head outer wall, press the inner extrusion face one that still has the slope of axle, it has extrusion border one to perforate one end.
In the technical scheme, the whole clamping die head is of a cylindrical structure, the through hole is a round hole, the processing is convenient, when the die holder is assembled, the pressing shaft is inwards extruded, the first extrusion surface acts on the first extrusion edge, and the first extrusion surface is inclined relative to the first extrusion edge due to the fact that the first extrusion surface is a slope surface (or an inclined surface), so that the clamping die head moves downwards. In addition, cylindrical may refer to a complete cylinder shape, and may also refer to a substantially cylindrical shape.
As shown in the attached drawing 3 of the specification, the traditional pin type card stopping structure comprises a first contact inclined surface at the inner end of a pressing shaft and a second contact inclined surface on a card die head, in the traditional structure, when a die holder is assembled, the pressing shaft is extruded, the first contact inclined surface acts on the second contact inclined surface to realize the downward pressing of the card die head, the drawing 3 of the specification can be used for conclusively showing that the first contact inclined surface and the second contact inclined surface in the pressing shaft and the card die head are in surface-to-surface contact, the contact area is large, the first contact inclined surface can know that the "force" acts on the downward pressing of the card die head, the difficulty coefficient of the pressing operation of the pressing shaft is large, and in contrary to the technical scheme, the first extrusion edge is in contact with the first extrusion surface, because the card die head is cylindrical, the first extrusion edge is in arc shape, when the first extrusion surface is in shape identical with the extrusion edge, the contact form of the "edge-to-surface contact", when the shape of the first extrusion edge, the contact form of point-surface contact is formed, and compared with the contact form of surface-surface contact, edge-surface contact and point-surface contact, the pressing shaft can easily press the clamping die head down, the pressing difficulty is reduced, and meanwhile, the clamping die head still utilizes the point-surface contact effect in the rebounding process, so that the quick reset of the clamping die head is realized, and the assembly work of the die holder is facilitated.
In the die clamping structure of the electric hydraulic tool, the first extrusion surface is a part of the outer wall of the circular truncated cone.
The first extrusion surface is a partial surface of the outer wall of the circular truncated cone, namely, the first extrusion surface is in an arc shape, and edge surface contact is formed at the moment, so that the first extrusion surface is in contact with the first extrusion edge, and the rapid pressing of the clamping die head is realized. In addition, the first extrusion surface can be processed into other surfaces to form point surface contact or similar edge surface contact.
The clamping die structure in the electric hydraulic tool is characterized in that the clamping die head is integrally rectangular and blocky, the punched hole is a square hole and penetrates through the outer wall of the clamping die head, a second extruding surface with a slope is further arranged at the inner end of the pressing shaft, and the other end of the punched hole is provided with a second extruding edge.
The second extrusion surface and the first extrusion surface do not coexist and are independent technical characteristics in different technical schemes, in the technical scheme, the vertical movement of the clamping die head is not influenced by the rectangular block-shaped structure of the clamping die head, the rapid pressing and rebounding of the clamping die head are realized by still utilizing the point surface contact effect or the edge surface contact effect of the second extrusion surface and the second extrusion edge, the shape of the clamping die head can be spherical and the like in practice, and the shape of the extending section can be matched with the shape of the through hole. In addition, a rectangular block shape may refer to a complete rectangle, and may also refer to a substantially rectangular shape.
In the above die clamping structure of the electro-hydraulic tool, the second extrusion surface is an inclined plane.
The plane and the second extrusion edge form 'edge surface contact', and in practice, the second extrusion edge can be one of the outer walls of a triangular frustum pyramid or a quadrangular frustum pyramid. Or a plane or the like separately formed on the pressing shaft
Therefore, the shapes of the card die head, the extrusion surface and the extrusion edge are not fixed, and the related structures capable of forming point surface contact or edge surface contact fall into the protection scope of the scheme. If the card die head is in a rectangular block shape, the through hole is circular, and the extrusion surface is a technical scheme combination of a rib-shaped structure surface, and if the card die head is in a cylindrical shape, the through hole is a square hole, and the extrusion surface is a plane, the functions can be realized.
In the die clamping structure of the electric hydraulic tool, the mounting hole is internally provided with the spring, the die clamping head enters the inner direction of the first hole end, and the spring is compressed.
The reset piece of the clamping die head is a spring, and the clamping die head is reset by utilizing the compression force of the spring.
In the above die clamping structure of the electro-hydraulic tool, the outer end of the die clamping head is provided with a matching part for matching with the die holder.
The matching part is used for fixing the die holder in a matched mode, the matching part can be a convex block, a clamping groove matched with the convex block is formed in the die holder, and the die holder is clamped after the clamping groove is matched with the convex block. The matching part can also be a positioning groove, a positioning block matched with the positioning groove is arranged on the die holder in the scheme, and the die holder is clamped after the positioning groove is matched with the positioning block.
The method for processing the clamping die structure in the electric hydraulic tool is characterized by comprising the following steps:
machining a mounting hole to form a first hole end and a second hole end;
the processing clamping head comprises raw material blanking, a processing matching part, heat treatment and perforation formation;
the pressing shaft processing comprises raw material blanking, heat treatment, processing of an extending section and an extrusion surface.
And a mounting hole is processed on the tong head of the tong head piston rod and used for mounting the die clamping head and the pressing shaft. In the processing process of the traditional clamping die head, as shown in figure 3 of the attached drawing of the specification, the traditional clamping die head is further provided with a contact inclined surface III except for a contact inclined surface II, the contact inclined surface II and the contact inclined surface III form a V shape, the processing difficulty of the shape is much higher than that of a processing perforation, the V-shaped bottom point fracture phenomenon is easy to occur in long-term punching of a traditional pressing shaft, the clamping die head is caused to fail, in addition, the V-shaped low point fracture and the yield are low in the processing process due to the processing precision problem. In the technical scheme, the pressing shaft passes through the through hole of the clamping die head, and basically does not form a top impact with the clamping die head, so that the phenomenon of breakage of the clamping die head is directly avoided, and the clamping die head has the advantages of long service life, convenience in processing and high yield. The machining matching part is generally machined by turning, milling and other machining means in various ways, which are not described in detail. In the processes of processing the clamping head and pressing the shaft, the device also has a finish machining step, including operations of polishing, deburring and the like.
In the process of machining the pressing shaft, the machining of the stretching-in section and the extrusion surface can be completed through turning, and the operation is convenient. As shown in the attached drawing 3 of the specification, the traditional pressing shaft is provided with a first contact inclined surface and a fourth contact inclined surface, the first contact inclined surface and the fourth contact inclined surface form a V shape, the shape is formed by milling, the processing is complex and troublesome, and meanwhile, because the traditional pressing shaft and the clamping die head realize the function of the clamping die structure through surface-to-surface contact, the requirement on the smoothness of each contact inclined surface is high, the processing difficulty and the processing precision are further increased, and the surface of the stretching-in section in the technical scheme does not contact with a new clamping die head, so the requirement on the smoothness of the surface of the stretching-in section is low, and the processing difficulty and the processing precision are reduced.
The method for assembling and disassembling the die clamping structure in the electric hydraulic tool is characterized by comprising the following steps:
in the assembling stage, a spring is arranged in the mounting hole, the clamping die head extends into the mounting hole from the first hole end to be matched with the spring, the clamping die head is pressed to a preset position in the direction of the inner end of the first hole end, the pressing shaft extends into the clamping die head from the second hole end to enable the stopper to penetrate through the through hole, the clamping die head is released, and the clamping die head forms a first state position;
and in the disassembling stage, the clamping die head is pressed to a preset position in the direction of the inner end of the first hole end, the pressing shaft forms a second state position, and the pressing shaft is pulled out.
The 'preset position' can be determined by a manufacturer, a lawless person can perform a pressing experiment on the card die head in the process of stealing technical secrets, and the concept of the 'preset position' does not exist, so that the technical secrets can be protected for a long time, the commercial layout of a technical owner is prolonged, and the technical owner can occupy a favorable position. The position range of the 'preset position' is wide, the selection is flexible, the secrecy strength is high, and the structural design is ingenious and novel.
The quick switching of the first state position and the second state position is realized by pressing the card die head, and then the quick disassembly and assembly of the card die head are realized.
Compared with the prior art, the clamping die structure in the electric hydraulic tool and the processing method and the assembling and disassembling method thereof have the following advantages:
1. the clamping die structure in the electric hydraulic tool overturns the traditional pin type clamping structure, and knocking operation of the split pin is not needed, so that the problem that metal chips generated by knocking the split pin block gaps is directly avoided, and the problem of the clamping die structure is fundamentally solved.
2. According to the clamping die structure in the electric hydraulic tool and the assembling and disassembling method thereof, the parts can be replaced and disassembled quickly through the 'double-state switching' design, and the structural design is ingenious.
3. According to the clamping die structure in the electric hydraulic tool and the assembling and disassembling method thereof, the pressing shaft is pressed down easily to the clamping die head through the contact form of edge surface contact and point surface contact, the pressing difficulty is reduced, and meanwhile, the clamping die head still utilizes the point surface contact effect in the rebounding process, so that the quick reset of the clamping die head is realized, and the assembling work of the die holder is facilitated.
4. The processing method of the clamping die structure in the electric hydraulic tool avoids the occurrence of the phenomenon of breaking of the clamping die head by processing the through hole, and has the advantages of long service life, convenient processing and high yield.
5. According to the processing method of the clamping die structure in the electric hydraulic tool, the surface of the stretching section does not contact with a new clamping die head, so that the requirement on the smoothness of the surface of the stretching section is low, and the processing difficulty and precision are reduced.
Drawings
Fig. 1 is a schematic structural view of a piston rod of a jaw to which the die clamping structure of the present electro-hydraulic tool is applied.
Fig. 2 is a schematic structural view of a caliper head to which a related art clamping structure is applied.
Fig. 3 is a schematic view of a structure in which a pressing shaft and a clamping head are engaged in a clamping structure of the related art.
Fig. 4 is a structural sectional view of a jaw to which a structure of a clamp mold according to an embodiment is applied.
FIG. 5 is a schematic view of the first state of the pressing shaft and the card die head in the first embodiment.
FIG. 6 is a sectional view of the structure of the second state of the pressing shaft and the card die head in the first embodiment.
FIG. 7 is a schematic diagram of the second state of the pressing shaft and the card die head in the first example.
FIG. 8 is a front view of a card die head of example two.
List of reference numerals
In the figure:
1. mounting holes;
1a, a first hole end;
1b, a second bore end;
2. clamping a die head;
2a, punching;
2a1, crush edge one;
2a2, a second extrusion edge;
2b, a matching part;
3. pressing the shaft;
3a, an extending section;
3b, a stop head;
3b1, blocking part;
3c, extruding the first surface;
4. a first status bit;
5. a second status bit;
6. a cotter pin;
7. a piston rod of the tong head;
7a, a binding clip;
7a1, a card surface;
7b, a hole for installing a cotter pin;
8. a limiting section;
9. a first contact inclined plane;
10. a second contact inclined plane;
11. a spring;
12. a contact inclined plane III;
13. and contacting the inclined plane four.
Detailed Description
Example one
As shown in fig. 1 to 7, the die clamping structure in the electric hydraulic tool includes a mounting hole 1, the mounting hole 1 has a first hole end 1a and a second hole end 1b, the die clamping structure further includes a die clamping head 2, the die clamping head 2 is located at the first hole end 1a, and the die clamping head 2 is provided with a through hole 2 a; the pressing shaft 3 penetrates through the second hole end 1b, an extending section 3a capable of extending into or out of the through hole 2a is arranged at the inner end of the pressing shaft 3, a blocking head 3b extending out of the through hole 2a is arranged at one end of the extending section 3a, and when the pressing shaft 3 is pressed inwards, the clamping die head 2 enters towards the inner direction of the first hole end 1a and the clamping die head 2 has a resetting trend; the card die head 2 is provided with a first state position 4 and a second state position 5, and when the card die head 2 is in the first state position 4, the axial movement of the pressing shaft 3 is limited; when the card die head 2 is in the second state position 5, the stopper 3b and the protruding section 3a can come out of the through hole 2 a. The technical scheme is not only suitable for electric hydraulic pliers, but also suitable for clamping dies in the field and the similar field. Taking the electric hydraulic pliers as an example for explanation, the first hole end 1a is located on the die clamping surface 7a1 of the tong head piston rod 7, the second hole end 1b is located on the side portion of the top of the piston rod, the die clamping head 2 is arranged in the first hole end 1a, the outer end of the die clamping head 2 can be matched with the die holder to clamp, the through hole 2a on the die clamping head 2 is through for the penetration of the extending section 3a of the pressing shaft 3 and the stopper 3b, and the pressing shaft 3 is inserted into the second hole end 1 b.
The card die head 2 has two status bits, a first status bit 4 is a lock status bit, and a second status bit 5 is a detachable status bit. When the card die head 2 is in the first state position 4, the outer end of the card die head 2 is in a state capable of being matched with the die holder, the through hole 2a can move in the pressing movement direction of the card die head 2, and in the first state position 4, the position of the through hole 2a is upwards moved compared with the position of the second state position 5, in practice, the through hole can also be downwards moved, leftwards moved, rightwards moved and the like, a phase clamping state is formed with the blocking head 3b and the extending section 3a, and the blocking head 3b is limited by the card die head 2, so that the pressing shaft 3 cannot be pulled out; when the die holder is assembled, the pressing shaft 3 is pressed inwards, the pressing shaft 3 acts on the die head 2 to enable the die head 2 to enter inwards, the outer end of the die head 2 enters the mounting hole 1 (at least is flush), the die holder is placed at the moment, and the die holder can be installed by loosening the pressing shaft 3; the second state position 5 is a detachable state, the card die head 2 is pressed inwards to a preset position, the blocking head 3b and the extending section 3a are in a coaxial communication state with the through hole 2a, the pressing shaft 3 is pulled outwards at the moment, the limitation of the card die head 2 is removed, and the card die head 2 is taken out, so that the replacement of parts can be conveniently carried out, wherein the coaxial communication state refers to a detachable state of the pressing shaft 3 and does not refer to a coaxial line state.
Compared with the prior art, the technical scheme overturns the traditional pin type clamping structure, does not need to knock the cotter pin 6, directly avoids the problem that the gap is blocked by metal chips generated by knocking the cotter pin 6, and fundamentally solves the problem of the existence of the clamping die structure. And meanwhile, the piston rod 7 of the tong head does not need to be drilled for installing the cotter 6. Further, the limitation of the axial movement of the pressing shaft 3 does not mean that only the pressing shaft 3 is completely prevented from moving in the axial direction, and allows the pressing shaft 3 to move in a certain range in the axial direction, and the limitation of the axial movement of the pressing shaft 3 means a state in which the pressing shaft 3 cannot be pulled out. In addition, the appearance of the card mould structure is not provided with the split pin 6 and the hole 7b for installing the split pin, so that a user cannot easily disassemble the card mould structure, the illusion that the card mould structure cannot be disassembled is formed, and the card mould structure can be maintained and replaced only by communicating with a producer, so that the technical security is realized technically, the technical security of the card mould structure is realized, the technical key points of the display are changed into the invisible state, and lawless persons who are skillful to get the card mould structure and are good at stealing the technical security can be avoided to a certain extent.
In the first state 4, the stopper 3b has a blocking portion 3b1 which is blocked with the card die head 2 with respect to the protruding section 3 a. The stopper 3b is engaged with the card die head 2 by the stopper 3b1, and prevents the pressing shaft 3 from being pulled out. When the card die head 2 is in the second state position 5, the blocking part 3b1 can enter the through hole 2a, so that the pressing shaft 3 is pulled out, and in the switching process of different state positions, the blocking part 3b1 also realizes the conversion of the functions of the blocking part, and the card die head is ingenious in structural design and novel in conception.
The extending section 3a and the blocking head 3b are both cylindrical, and the diameter of the blocking head 3b is larger than that of the extending section 3 a. In this technical solution, the blocking portion 3b1 is a partial bottom of the stopper 3b, the stopper 3b and the extending section 3a may be coaxially connected or non-coaxially connected, and the stopper 3b and the extending section 3a of this structure are convenient to process.
The card die head 2 is integrally cylindrical, the through hole 2a is a circular hole and penetrates through the outer wall of the card die head 2, a sloping extrusion surface 3c is arranged at the inner end of the pressing shaft 3, and an extrusion edge 2a1 is arranged at one end of the through hole 2 a. The first extrusion surface 3c is a part of the outer wall of the circular truncated cone. In the technical scheme, the whole clamping die head 2 is of a cylindrical structure, the through hole 2a is a round hole, the processing is convenient, the pressing shaft 3 is inwards extruded when the die holder is assembled, the first extrusion surface 3c acts on the first extrusion edge 2a1, and the first extrusion surface 3c is a slope surface (or an inclined surface) and is inclined relative to the first extrusion edge 2a1, so that the clamping die head 2 moves downwards. In addition, cylindrical may refer to a complete cylinder shape, and may also refer to a substantially cylindrical shape. The first extrusion surface 3c is a partial surface of the outer wall of the circular truncated cone, namely, the partial surface is in an arc shape, and edge surface contact is formed at the moment, so that the contact with the first extrusion edge 2a1 is facilitated, and the rapid pressing of the card die head 2 is realized. Alternatively, the first pressing surface 3c may be processed into another surface to form "point surface contact" or similar "edge surface contact".
As shown in the attached drawing 3 of the specification, the conventional pin type card stopping structure includes a first contact inclined surface 9 at the inner end of the pressing shaft 3 and a second contact inclined surface 10 on the card die head 2, in this conventional structure, when the die holder is assembled, the pressing shaft 3 is pressed, the first contact inclined surface 9 acts on the second contact inclined surface 10 to realize the downward pressing of the card die head 2, it can be unambiguously found from the attached drawing 3 of the specification, the first contact inclined surface 9 and the second contact inclined surface 10 in the pressing shaft 3 and the card die head 2 are in surface-to-surface contact, the contact area is large, the "force" of the downward pressing action of the first contact inclined surface 9 on the card die head 2 can be known, the pressing operation coefficient of the pressing shaft 3 is large, in contrast to the technical scheme, the pressing edge one 2a1 is in contact with the first extrusion surface 3c, because the card die head 2 is cylindrical, the first extrusion edge 2a1 is in an arc shape, when the shape of the first extrusion surface 3c is identical to the shape of the, the contact form of 'edge surface contact' is formed, when the shape of the first extrusion surface 3c is not matched with the first extrusion edge 2a1, the contact form of 'point surface contact' is formed, compared with the contact form of 'surface contact', 'edge surface contact' and 'point surface contact', the pressing shaft 3 can easily press the die head 2, the pressing difficulty is reduced, meanwhile, the die head 2 still utilizes the 'point surface contact' effect in the rebounding process, the quick reset of the die head 2 is realized, and the assembly work of the die holder is facilitated. The mounting hole 1 is also internally provided with a spring 11, the clamping die head 2 enters the inner direction of the first hole end 1a, and the spring 11 is compressed. The reset piece of the card die head 2 is a spring 11, and the reset of the card die head 2 is realized by utilizing the compression force of the spring 11. The outer end of the card die head 2 has a fitting portion 2b for fitting with a die holder. The matching part 2b is used for fixing the die holder in a matched mode, the matching part 2b can be a convex block, a clamping groove matched with the convex block is formed in the die holder, and the die holder is clamped after the clamping groove is matched with the convex block. The matching part 2b can also be a positioning groove, a positioning block matched with the positioning groove is arranged on the die holder in the scheme, and the die holder is clamped after the positioning groove and the positioning block are matched.
The processing method of the clamping die structure in the electric hydraulic tool comprises the steps of processing the mounting hole 1 to form a first hole end 1a and a second hole end 1 b; the processing card die head 2 comprises raw material blanking, a processing matching part 2b, heat treatment and perforation 2a formation; the pressing shaft 3 is processed, and comprises the steps of raw material blanking, heat treatment, processing of the extending section 3a and extrusion surface.
A mounting hole 1 is formed in a jaw 7a of a jaw piston rod 7 for mounting the die chuck 2 and the pressing shaft 3. In the processing process of the traditional card die head 2, as shown in figure 3 of the attached drawing of the specification, the traditional card die head 2 is provided with a contact inclined plane three 12 besides a contact inclined plane two 10, and the contact inclined plane two 10 and the contact inclined plane three 12 form a V shape, the processing difficulty of the shape is much higher than that of a processing through hole 2a, and the V-shaped bottom point fracture phenomenon is easy to occur after the traditional pressing shaft 3 is punched for a long time, so that the card die head 2 fails, in addition, the V-shaped low point fracture occurs in the processing process due to the processing precision problem, and the yield is low. In the technical scheme, the pressing shaft 3 penetrates through the through hole 2a of the clamping die head 2, and basically does not form a top rushing with the clamping die head 2, so that the phenomenon that the clamping die head 2 is broken is directly avoided, and the pressing device has the advantages of long service life, convenience in processing and high yield. The machining matching portion 2b is generally machined by turning, milling or other machining means in various ways, which are not described in detail. In the processes of processing the card die head 2 and pressing the shaft 3, the device also has a finishing step, including operations of polishing, deburring, and the like.
In the process of machining the pressing shaft 3, the machining of the extending section 3a and the extrusion surface can be completed through turning, and the operation is convenient. As shown in the attached drawing fig. 3 of the specification, the traditional pressing shaft 3 is provided with a first contact inclined surface 9 and a fourth contact inclined surface 13, the first contact inclined surface 9 and the fourth contact inclined surface 13 form a V shape, the shape is formed by milling, the processing is complex and troublesome, and meanwhile, because the traditional pressing shaft 3 and the clamping die head 2 realize the function of a clamping die structure through surface-to-surface contact, the requirement on the smoothness of each contact inclined surface is high, the processing difficulty and precision are further increased, and the surface of the extending section 3a in the technical scheme does not contact with a new clamping die head 2, so the requirement on the smoothness of the surface of the extending section 3a is low, and the processing difficulty and precision are reduced.
The assembling and disassembling method of the clamping die structure in the electric hydraulic tool comprises an assembling stage, wherein a spring 11 is arranged in a mounting hole 1, a clamping die head 2 extends into the mounting hole from a first hole end 1a to be matched with the spring 11, the clamping die head 2 is pressed to a preset position in the inner end direction of the first hole end 1a, a pressing shaft 3 extends into the mounting hole from a second hole end 1b to enable a stopper 3b to penetrate through a through hole 2a, the clamping die head 2 is released, and the clamping die head 2 forms a first state position 4; and in the disassembling stage, the clamping die head 2 is pressed to a preset position in the inner end direction of the first hole end 1a, the pressing shaft 3 forms a second state position 5, and the pressing shaft 3 is pulled out.
The 'preset position' can be determined by a manufacturer, a lawless person can perform a pressing experiment on the card die head 2 in the process of stealing technical secrets, and the concept of the 'preset position' does not exist, so that the technical secrets can be protected for a long time, the commercial layout of a technical owner is prolonged, and the technical owner can occupy a favorable position. The position range of the 'preset position' is wide, the selection is flexible, the secrecy strength is high, and the structural design is ingenious and novel. The quick switching of the first state position 4 and the second state position 5 is realized by pressing the card die head 2, and then the quick assembly and disassembly of the card die head 2 are realized.
Example two
As shown in fig. 8, the present embodiment is different from the first embodiment in that: the card die head 2 is integrally rectangular and blocky, the through hole 2a is a square hole and penetrates through the outer wall of the card die head 2, a second inclined extrusion surface is arranged at the inner end of the pressing shaft 3, the second extrusion edge 2a2 is arranged at one end of the through hole 2a, and the second extrusion surface is an inclined plane. The second extrusion surface and the first extrusion surface 3c do not coexist, and are independent technical characteristics in different technical schemes, in the technical scheme, the vertical movement of the clamping die head 2 is not influenced by a rectangular block-shaped structure, the rapid pressing and rebounding of the clamping die head 2 are realized by still utilizing the point-surface contact effect or the edge-surface contact effect of the second extrusion surface and the second extrusion edge 2a2, the shape of the clamping die head 2 can be spherical and the like in practice, and the shape of the extending section 3a can be matched with the shape of the through hole 2 a. In addition, a rectangular block shape may refer to a complete rectangle, and may also refer to a substantially rectangular shape. The plane and the extrusion edge 2a2 form an edge surface contact, and in practice, the extrusion surface two can be one of three-edge table and four-edge table outer walls. Or may be a single flat surface or the like separately formed on the pressing shaft 3
Therefore, the shapes of the card die head 2, the extrusion surface, and the extrusion edge are not fixed, and the related structures capable of forming the "point surface contact" or the "edge surface contact" fall within the protection scope of the above scheme. If the card die head 2 is in a rectangular block shape, but the through hole 2a is circular, and the extrusion surface is a technical scheme combination of a rib-shaped structure surface, and if the card die head 2 is in a cylindrical shape, but the through hole 2a is a square hole, and the extrusion surface is a technical scheme combination of a plane, the above functions can be realized.
Details, structures, dimensions and principles not mentioned in the present application are all known in the art or can be obtained by simple selection of those skilled in the art, and are not described in detail.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. Clamping die structure in electro-hydraulic tool, including mounting hole (1), mounting hole (1) has first hole end (1a) and second hole end (1b), its characterized in that, clamping die structure still includes:
the card die head (2) is positioned at the first hole end (1a), and a through hole (2a) is formed in the card die head (2);
the pressing shaft (3) penetrates through the second hole end (1b), an extending section (3a) capable of extending into or out of the through hole (2a) is arranged at the inner end of the pressing shaft (3), a blocking head (3b) extending out of the through hole (2a) is arranged at one end of the extending section (3a), when the pressing shaft (3) is pressed inwards, the clamping die head (2) enters towards the inner direction of the first hole end (1a), and the clamping die head (2) has the resetting tendency;
the card die head (2) is provided with a first state position (4) and a second state position (5), and when the card die head (2) is in the first state position (4), the axial movement of the pressing shaft (3) is limited; when the card die head (2) is in the second state position (5), the stop head (3b) and the extending section (3a) can penetrate out of the through hole (2 a).
2. The die clamping structure in an electro-hydraulic tool according to claim 1, wherein the stopper (3b) has a blocking portion (3b1) which is blocked with the die clamping head (2) relative to the protruding section (3a) in the first state (4).
3. The die clamping structure in an electro-hydraulic tool according to claim 1 or 2, wherein the protruding section (3a) and the stopper (3b) are both cylindrical, and the diameter of the stopper (3b) is larger than that of the protruding section (3 a).
4. The die structure in an electro-hydraulic tool according to claim 1 or 2, wherein the die head (2) is generally cylindrical, the through hole (2a) is a circular hole and penetrates through the outer wall of the die head (2), a sloping extrusion surface I (3c) is further arranged at the inner end of the pressing shaft (3), and an extrusion edge I (2a1) is arranged at one end of the through hole (2 a).
5. The die clamping structure in an electro-hydraulic tool according to claim 4, wherein the first pressing surface (3c) is a portion of an outer wall of a circular truncated cone.
6. The die structure in an electro-hydraulic tool according to claim 1 or 2, wherein the die head (2) has a rectangular block shape as a whole, the through hole (2a) is a square hole and penetrates through the outer wall of the die head (2), a second inclined pressing surface is further arranged at the inner end of the pressing shaft (3), and a second pressing edge (2a2) is arranged at one end of the through hole (2 a).
7. The die clamping structure in an electro-hydraulic tool according to claim 6, wherein the second pressing surface is an inclined plane.
8. The processing method of the clamping die structure in the electric hydraulic tool is characterized by comprising the following steps:
machining a mounting hole (1) to form a first hole end (1a) and a second hole end (1 b);
a processing card die head (2) which comprises raw material blanking, a processing matching part (2b), heat treatment and perforation (2a) formation;
the pressing shaft (3) is processed and comprises raw material blanking, heat treatment, a processing extending-in section (3a) and an extrusion surface.
9. The method for assembling and disassembling the clamping die structure in the electric hydraulic tool is characterized by comprising the following steps:
in the assembling stage, a spring is placed in the mounting hole (1), the clamping die head (2) extends into the mounting hole from the first hole end (1a) to be matched with the spring, the clamping die head (2) is pressed to a preset position in the inner end direction of the first hole end (1a), the pressing shaft (3) extends into the clamping die head from the second hole end (1b) to enable the stopper (3b) to penetrate through the through hole (2a), the clamping die head (2) is loosened, and the clamping die head (2) forms a first state position (4);
and in the disassembling stage, the clamping die head (2) is pressed to a preset position in the inner end direction of the first hole end (1a), the pressing shaft (3) forms a second state position (5), and the pressing shaft (3) is pulled out.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911247422.8A CN110900533A (en) | 2019-12-09 | 2019-12-09 | Clamping die structure in electric hydraulic tool and machining method and assembling and disassembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911247422.8A CN110900533A (en) | 2019-12-09 | 2019-12-09 | Clamping die structure in electric hydraulic tool and machining method and assembling and disassembling method thereof |
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| CN110900533A true CN110900533A (en) | 2020-03-24 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058179A (en) * | 2006-04-17 | 2007-10-24 | 谢智庆 | Driving section structure for pneumatic tools |
| CN202714790U (en) * | 2012-08-07 | 2013-02-06 | 李飞宇 | Device for quickly disassembling and assembling toilet cover plate |
| CN203226761U (en) * | 2013-03-15 | 2013-10-09 | 周裕佳 | Rapid disassembly and assembly mechanism for toilet bowl cover plate |
| WO2016027936A1 (en) * | 2014-08-21 | 2016-02-25 | 김창성 | Apparatus for attaching/detaching grinding tool for grinder |
| CN207119580U (en) * | 2017-01-12 | 2018-03-20 | 浙江安露清洗机有限公司 | The fast connection mechanism of jetting machine water side shower nozzle |
| CN211193759U (en) * | 2019-12-09 | 2020-08-07 | 台州奇峰工具有限公司 | Clamping die structure in electric hydraulic tool |
-
2019
- 2019-12-09 CN CN201911247422.8A patent/CN110900533A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058179A (en) * | 2006-04-17 | 2007-10-24 | 谢智庆 | Driving section structure for pneumatic tools |
| CN202714790U (en) * | 2012-08-07 | 2013-02-06 | 李飞宇 | Device for quickly disassembling and assembling toilet cover plate |
| CN203226761U (en) * | 2013-03-15 | 2013-10-09 | 周裕佳 | Rapid disassembly and assembly mechanism for toilet bowl cover plate |
| WO2016027936A1 (en) * | 2014-08-21 | 2016-02-25 | 김창성 | Apparatus for attaching/detaching grinding tool for grinder |
| CN207119580U (en) * | 2017-01-12 | 2018-03-20 | 浙江安露清洗机有限公司 | The fast connection mechanism of jetting machine water side shower nozzle |
| CN211193759U (en) * | 2019-12-09 | 2020-08-07 | 台州奇峰工具有限公司 | Clamping die structure in electric hydraulic tool |
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