CN110153764B - Special frock of coupling processing - Google Patents
Special frock of coupling processing Download PDFInfo
- Publication number
- CN110153764B CN110153764B CN201910400625.XA CN201910400625A CN110153764B CN 110153764 B CN110153764 B CN 110153764B CN 201910400625 A CN201910400625 A CN 201910400625A CN 110153764 B CN110153764 B CN 110153764B
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- clamping
- piece
- clamping piece
- pipe joint
- pull
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- 230000008878 coupling Effects 0.000 title claims abstract description 6
- 238000010168 coupling process Methods 0.000 title claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 6
- 230000006835 compression Effects 0.000 claims abstract description 35
- 238000007906 compression Methods 0.000 claims abstract description 35
- 238000005266 casting Methods 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000003754 machining Methods 0.000 description 11
- 238000003825 pressing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model provides a special frock of coupling processing, including clamping seat, clamping piece and pull rod, the clamping piece rotates to be joined in marriage and installs on the clamping seat, in the clamping seat was located to pull rod movable sleeve, the clamping piece includes first clamping piece, second clamping piece, the connecting piece of being connected with first clamping piece and second clamping piece, the elastic compression subassembly is joined in marriage to the connecting piece is provided in order to realize the elasticity of the hole open end roof of pair pipe joint foundry goods and is pressed tightly, the clamping piece is provided with the pull piece that supplies the pull rod to draw to connect, the clamping end is provided respectively to first clamping piece and second clamping piece in order to make the clamping piece rotate relative clamping seat when the pull rod acts on the pull piece and realize the clamp to press from both sides the clamp end to the bottom plate on the pair pipe joint foundry goods. The special fixture for pipe joint processing can realize reliable clamping of pipe joint castings.
Description
Technical Field
The invention relates to the technical field of pipe joint casting machining, in particular to a special tool for pipe joint machining.
Background
As shown in fig. 1, a pipe joint casting suitable for use in an automobile engine is an elbow casting comprising a through hole therethrough. One end of the through hole is provided with a bottom plate to form a bottom end, and the other end of the through hole is not provided with the bottom plate to form a hole opening end which needs to be processed by a crane. When the open end of the hole is machined, the machining is generally performed on a lathe, and at this time, the bent pipe casting needs to be clamped on a chuck of the lathe. The bent pipe casting is different from the straight pipe casting, and the bent pipe casting cannot be directly clamped on the chuck during clamping. For this reason, a special clamping tool is required to be designed to stably and reliably clamp the bent pipe casting.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the special fixture for pipe joint machining can reliably clamp the pipe joint casting.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a special frock of coupling processing, includes clamping seat, clamping piece and pull rod, the clamping seat sets up axial through-hole and sets up the clamping groove in one end, the pull rod cover is fit in axial through-hole, the clamping piece rotates to be joined in marriage and is adorned on the clamping seat and be arranged in the clamping groove, set up the clamping basement on the lower lateral wall of clamping groove and supply the bottom configuration of coupling foundry goods, the clamping piece includes first clamping piece and the second clamping piece that bilateral symmetry set up, the connecting piece of being connected with first clamping piece and second clamping piece, the elastic compression subassembly is set up in order to realize the elasticity of the hole open end roof of geminate transistors joint to compress tightly to the connecting piece, the clamping piece sets up the pull piece that supplies the pull rod to connect, first clamping piece and second clamping piece are set up the clamping end respectively in order to realize the clamp end to compress tightly the bottom plate on the geminate transistors foundry goods when the relative clamping seat is rotated to the pull rod.
Further, the lower side part of the clamping groove is provided with a central positioning column for positioning a through hole at the bottom end of the pipe joint casting, and the lower side part of the clamping groove is also provided with a branch positioning column for positioning a mounting hole on the bottom plate. The central positioning column and the branch positioning columns are matched, so that the pipe joint casting can be positioned more reliably without shaking.
Further, the first clamping piece and the second clamping piece are respectively provided with a mounting shaft in a penetrating mode, the mounting shafts are respectively arranged on the clamping bases in a matching mode, and the clamping pieces are reliably rotatably arranged on the clamping bases through the mounting shafts, so that the clamping pieces can rotate relative to the clamping bases under the action of external force.
Further, the pull rod is provided with a bent hook-shaped pull-connecting end, the pull-connecting end is hooked with the pull-connecting piece, and two ends of the pull-connecting piece are arranged on the first clamping piece and the second clamping piece in a penetrating mode, so that reliable hooking can be achieved, and after hooking, the clamping piece can rotate relative to the clamping seat stably after external force acts on the pull rod.
Further, the elastic compression assembly comprises a cavity seat which is arranged on the top wall of the connecting piece in a protruding mode, and a compression block which is arranged in the cavity seat in a limiting mode at the lower end of the compression block, and a compression spring which is sleeved on the compression block to act on the compression block. The elastic compression assembly of the structure protrudes outwards from the connecting piece, and space above the connecting piece is fully utilized, so that the elastic compression assembly can have enough space for installation. And the compression block is not easy to fall off after being assembled, so that the compression spring can apply reliable compression force to the compression block to tightly compress the workpiece.
Further, the clamping substrate and the clamping seat are of split type structures, and the top wall of the clamping substrate is flat. After the clamping substrate is independently arranged, only the configuration surface with higher precision is required to be processed in the range of smaller top wall area of the clamping substrate, so that the processing area of finish machining can be effectively reduced, and the processing is convenient.
According to the special fixture for processing the pipe joint, after the clamping groove is arranged on the clamping seat, the workpiece can be placed in the clamping groove, and the workpiece can be effectively and reliably clamped by means of the arrangement of the clamping piece and the pull rod. In addition, in the clamping process, the top of the opening end of the workpiece hole is pressed by using an elastic pressing mode, even if the workpiece shakes during processing, the workpiece can be offset by using the elastic pressing mode, in addition, the bottom plate of the workpiece is pressed by using the rotating mode of the clamping piece, the pressing mode can realize reliable pressing under the comprehensive arrangement of the elastic pressing, the shaking phenomenon can not occur during processing the workpiece, and the reliable finish processing of the workpiece can be met. In the machining process, through comprehensive arrangement of all parts, the end face of the opening end of the hole of the final workpiece can be kept in a vertical state for finish machining, so that the whole special tool for machining the pipe joint can be integrally assembled on a lathe chuck, and the whole tool can be used for reliably clamping the workpiece by pushing the pull rod through the oil cylinder piston rod of the lathe.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a tooling special for processing a pipe joint.
Fig. 2 is a schematic structural view of a clamping member of the tool special for processing a pipe joint.
Fig. 3 is a schematic view of a partial sectional structure of a clamping member of a tool for machining a pipe joint according to the present invention. (mainly showing elastic pressing component)
Fig. 4 is a schematic structural diagram of a pull rod of a tool special for pipe joint processing.
Fig. 5 is a schematic structural view of a clamping seat of the tooling special for processing the pipe joint.
The clamping device comprises a clamping seat 1, clamping pieces 2, a pull rod 3, an axial through hole 4, a clamping groove 5, a clamping substrate 6, a pipe joint casting 7, a first clamping piece 8, a second clamping piece 9, a connecting piece 10, an opening end 11, a pull-out piece 12, a clamping end 13, a bottom plate 14, a central positioning column 15, a bottom end 16, a through hole 17, a positioning column 18, a mounting hole 19, a mounting shaft 20, a pull-out end 21, a cavity seat 22, a compression block 23, a compression spring 24, a limiting ring plate 25 and a ring-shaped baffle 26.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
A specific embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
As in the embodiment shown in fig. 1-5, a tooling special for machining pipe joints is shown. The special fixture for processing the pipe joint comprises a clamping seat 1, a clamping piece 2 and a pull rod 3. In fig. 5, the clamping holder 1 is provided with an axial through hole 4 and a clamping groove 5 at one end. The clamping groove 5 is approximately V-shaped, the whole opening angle is smaller than ninety degrees, the clamping groove 5 adopts a proper opening angle, and a proper assembling space is provided for clamping the pipe joint casting 7. The other end of the clamping seat 1 is provided with a mounting end, and the clamping seat 1 can be assembled on a chuck of a lathe through the mounting end. As the mounting end, the end face of the mounting end is provided with mounting holes, and the mounting holes are annularly and uniformly distributed, so that the balanced arrangement of the mounting positions is ensured. And meanwhile, an annular groove body is arranged on the outer side wall of the mounting end so that fasteners such as bolts for fastening can have proper space to pass through the mounting holes to assemble the clamping seat 1 to a lathe chuck.
The pull rod 3 is sleeved in the axial through hole 4, and after the whole pipe joint processing special tool is assembled on the lathe chuck, the pull rod 3 is pulled, namely the pull rod 3 is pulled by an oil cylinder piston rod of the lathe. Of course, during assembly, the pull rod 3 needs to be connected with the cylinder piston rod of the lathe, so that the piston rod can drive the pull rod 3 to realize push-pull action.
The clamping piece 2 is rotatably assembled on the clamping seat 1 and is positioned in the clamping groove 5, and a clamping substrate 6 is arranged on the lower side wall of the clamping groove 5 for the bottom end configuration of the pipe joint casting 7. The clamping substrate 6 and the clamping seat 1 are of split type structures, the clamping top surface of the clamping substrate 6 needs to be considered to have higher flatness, the clamping substrate 6 can be subjected to finish machining independently as the split type structure, and after the clamping substrate 6 and the clamping seat 1 are split, the clamping substrate 6 can be disassembled and assembled, and the clamping substrate is convenient to replace. The clamping base 6 can be in a flat plate shape, can be embedded on the clamping seat 1, and can be assembled on the clamping seat 1 through a fastener or a clamping structure. Reference is made to fig. 1.
As shown in fig. 2, the clamping member 2 includes a first clamping member 8 and a second clamping member 9 which are symmetrically disposed on the left and right, and a connecting member 10 connected to the first clamping member 8 and the second clamping member 9.
The connecting piece 10 is approximately a plate body mounting structure, and an elastic pressing component is arranged near the outer edge part to realize elastic pressing of the top wall of the hole opening end 11 of the pipe joint casting 7. The elastic compression assembly comprises a cavity seat 22 convexly arranged on the top wall of the outer edge part of the connecting piece 10, a compression block 23 with the lower end being in limit fit in the cavity seat 22, and a compression spring 24 sleeved on the compression block 23 to act on the compression block 23. In the compressed state, the lower end wall of the compression block 23 is compressed against the top wall of the hole opening end 11 of the pipe joint casting 7. In order to realize the limit of the compression block 23 and prevent the compression block from falling out of the bottom of the cavity seat 22, a limit ring plate 25 extending radially inwards is arranged at the bottom of the cavity seat 22, and an annular baffle plate 26 arranged on the limit ring plate 25 is arranged at a position close to the upper section of the lower end of the compression block 23. After the structure is adopted for limiting, the limiting is reliable because the contact area of the plate is large. Reference is made to fig. 3.
The first clamping piece 8 and the second clamping piece 9 are also plate structures, the first clamping piece 8 and the second clamping piece 9 are jointly provided with a pull-connecting piece 12 for pulling the pull rod 3, and the first clamping piece 8 and the second clamping piece 9 are respectively provided with a clamping end 13 so as to realize the compression of the clamping end 13 on a bottom plate 14 on the pipe joint casting 7 when the pull rod 3 pushes the pull-connecting piece 12 to enable the clamping piece 2 to rotate relative to the clamping seat 1. In order to realize the rotary assembly of the clamping piece 2 on the clamping seat 1, a mounting shaft 20 is respectively arranged on the first clamping piece 8 and the second clamping piece 9 in a penetrating way, and the mounting shafts 20 are respectively arranged on the clamping seat 1, so that the rotary assembly of the clamping piece 2 on the clamping seat 1 is realized through the first clamping piece 8, the second clamping piece 9 and the corresponding mounting shafts 20. In this embodiment, the rotational mounting position may be located above the mounting position of the pull member 12, and the clamping end 13 is located at the other side of the plate structure relative to the rotational mounting position and the mounting position of the pull member 12. By adopting the layout mode, each installation position and each clamping end are not interfered during working, and are not interfered with other parts. Reference is made to fig. 2.
In this embodiment, the lower side of the clamping groove 5 is provided with a central positioning column 15 for positioning a through hole 17 at the bottom end 16 of the pipe joint casting 7, and the lower side of the clamping groove 5 is also provided with a sub positioning column 18 for positioning a mounting hole 19 on the bottom plate 14. Reference is made to fig. 1.
In some embodiments, the pull rod 3 is provided with a hooked pull-out end 21, the pull-out end 21 being hooked with the pull-out piece 12, and both ends of the pull-out piece 12 being threaded onto the first clamping piece 8 and the second clamping piece 9. Refer to fig. 4.
When in use, a workpiece (namely the pipe joint casting 7) is placed in the clamping groove 5 of the clamping seat 1, the bottom plate 14 of the workpiece is placed on the clamping base 6, the center positioning column 15 is used for positioning the through hole 17 at the bottom end 16 of the workpiece, and the sub positioning columns 18 are used for positioning the mounting holes 19 on the bottom plate 14. Then, the self cylinder piston rod of the lathe is started, so that the pull rod 3 is advanced to push the pull-connecting piece 12, and the clamping piece 2 rotates relative to the clamping seat 1, so that the clamping end 13 compresses the bottom plate 14 on the workpiece.
Claims (3)
1. A special frock of coupling processing, its characterized in that: the clamping device comprises a clamping seat (1), clamping pieces (2) and a pull rod (3), wherein the clamping seat (1) is provided with an axial through hole (4) and is provided with a clamping groove (5) at one end, the pull rod (3) is sleeved in the axial through hole (4), the clamping pieces (2) are rotatably assembled on the clamping seat (1) and are positioned in the clamping groove (5), a clamping substrate (6) is arranged on the lower side wall of the clamping groove (5) for the bottom end configuration of a pipe joint casting (7), the clamping pieces (2) comprise a first clamping piece (8) and a second clamping piece (9) which are symmetrically arranged left and right, and a connecting piece (10) connected with the first clamping piece (8) and the second clamping piece (9), the connecting piece (10) is provided with an elastic compression assembly to realize the elastic compression of the top wall of a hole opening end (11) of the pipe joint casting (7), the clamping pieces (2) are provided with a pull piece (12) for the pull rod (3) to be pulled, and the first clamping piece (8) and the second clamping piece (9) are respectively provided with a first clamping piece (8) and a second clamping piece (9) which are symmetrically arranged to realize the compression of the bottom plate (13) of the pipe joint casting (7) when the clamping pieces (13) are pressed against the clamping seat (1);
A central positioning column (15) is arranged on the lower side of the clamping groove (5) for positioning a through hole (17) at the bottom end (16) of the pipe joint casting (7), and a sub positioning column (18) is also arranged on the lower side of the clamping groove (5) for positioning a mounting hole (19) on the bottom plate (14); the first clamping piece (8) and the second clamping piece (9) are respectively provided with a mounting shaft (20) in a penetrating way, and the mounting shafts (20) are respectively arranged on the clamping seat (1); the elastic compression assembly comprises a cavity seat (22) which is arranged on the top wall of the connecting piece (10) in a protruding mode, a compression block (23) which is arranged in the cavity seat (22) in a limiting mode at the lower end of the compression block, and a compression spring (24) which is sleeved on the compression block (23) to act on the compression block (23).
2. The tooling special for processing the pipe joint according to claim 1, wherein: the pull rod (3) is provided with a bent hook-shaped pull-connecting end (21), the pull-connecting end (21) is hooked with the pull-connecting piece (12), and two ends of the pull-connecting piece (12) are arranged on the first clamping piece (8) and the second clamping piece (9) in a penetrating mode.
3. The tooling special for processing the pipe joint according to claim 1, wherein: the clamping base (6) and the clamping seat (1) are of split type structures, and the top wall of the clamping base (6) is flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910400625.XA CN110153764B (en) | 2019-05-15 | Special frock of coupling processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910400625.XA CN110153764B (en) | 2019-05-15 | Special frock of coupling processing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110153764A CN110153764A (en) | 2019-08-23 |
| CN110153764B true CN110153764B (en) | 2024-04-19 |
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