CN108311897B - Z-axis positioning structure of clamp and clamp - Google Patents
Z-axis positioning structure of clamp and clamp Download PDFInfo
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- CN108311897B CN108311897B CN201810347910.5A CN201810347910A CN108311897B CN 108311897 B CN108311897 B CN 108311897B CN 201810347910 A CN201810347910 A CN 201810347910A CN 108311897 B CN108311897 B CN 108311897B
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- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/0063—Connecting non-slidable parts of machine tools to each other
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a Z-axis positioning structure of a clamp and the clamp, which comprises: the Z-axis positioning piece is arranged in the Z-axis positioning piece, is used for enabling the petal-shaped part of the Z-axis positioning piece to open and clamp the expanding bolt of the square shell after being pushed downwards, and is used for accommodating the screw accommodating hole at the lower end of the expanding bolt. According to the Z-axis positioning structure provided by the invention, when the square shell is positioned in the Z-axis direction, the square shell is only required to be placed in the shell accommodating groove, and the diameter-enlarging bolt is rotated downwards until the lower end is screwed with the screw accommodating hole, so that the diameter-enlarging bolt drives the petal-shaped part of the Z-axis positioning piece to open and clamp the square shell, and the positioning convenience, the loading and unloading efficiency and the processing efficiency of the square shell are improved.
Description
Technical Field
The invention relates to a clamp, in particular to a Z-axis positioning structure of the clamp and the clamp.
Background
The triaxial location in traditional square casing anchor clamps is accomplished by upper and lower splint, and upper and lower splint can dismantle the connection, when square casing needs to be loaded into, need dismantle the upper splint at first, then put into the casing holding tank that the lower plate up end was seted up with square casing, then adorn the upper splint back, process the position that the through the penetration groove that the upper splint set up stretched into square casing with the cutter.
That is, the conventional square housing clamp is Z-axis positioned by the upper clamp plate, which is extremely cumbersome and inefficient.
It can be seen that the prior art is still in need of improvement and development.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a Z-axis positioning structure of a fixture and the fixture, which aims to simplify the Z-axis positioning mode of a square housing and improve the assembly efficiency and the processing efficiency.
The technical scheme of the invention is as follows:
the utility model provides a Z axle location structure of anchor clamps, anchor clamps are arranged in the centre gripping square casing in the module of making a video recording, wherein, the Z axle location structure of anchor clamps includes: the fixture body and the Z-axis auxiliary positioning mechanism; the auxiliary Z-axis positioning mechanism comprises: z-axis locating piece, expanding bolt and screw rod accommodating hole; the fixture comprises a fixture body, a Z-axis positioning piece, a diameter-expanding bolt, a plurality of first dividing grooves, a plurality of second dividing grooves, a plurality of first dividing grooves and a plurality of second dividing grooves, wherein the upper end of the fixture body is provided with a shell accommodating groove; the upper part of the screw rod of the expanding bolt is an inverted frustum; the Z-axis positioning piece is sleeved on the outer edge of the diameter-expanding bolt; the lower end face of the clamp body is also provided with a screw accommodating hole, and after the diameter-expanding bolt is subjected to downward pushing force, the lower end of the screw of the diameter-expanding bolt is accommodated in the screw accommodating hole, so that the petal-shaped area of the Z-axis positioning piece expands outwards to clamp the square shell.
The Z-axis positioning structure of the clamp is characterized in that a contraction ring is arranged at the outer edge of an opening at the upper end of the Z-axis positioning piece and used for clamping the square shell after being expanded outwards.
And the Z-axis positioning structure of the clamp is characterized in that when the diameter expansion bolt is in the lower limit position, the lower end surface of the shrinkage ring is attached to the square shell.
The Z-axis positioning structure of the clamp is characterized in that the Z-axis positioning hole is a step hole, and the Z-axis positioning piece is placed on the step.
The Z-axis positioning structure of the clamp is characterized in that a protrusion is arranged on the inner surface of one side, away from the rotating block, of the Z-axis positioning hole, and the protrusion is positioned above the step; the outer surface of the Z-axis positioning piece is provided with a notch, and the protrusion is matched with the notch.
The Z-axis positioning structure of the clamp is characterized in that the outer surface of one side, deviating from the rotating block, of the Z-axis positioning hole is provided with a concave surface, and a clamping rod is arranged in the long-side direction of the clamp body and is clamped with the concave surface.
And the Z-axis positioning structure of the clamp, wherein when the diameter-expanding bolt is in the lower limit, the lower end face is flush with the lower end opening of the screw accommodating hole.
The Z-axis positioning structure of the clamp is characterized in that a plurality of second dividing grooves are formed in the lower end of the Z-axis positioning piece, and the lower end of the Z-axis positioning piece is divided into a petal shape by the second dividing grooves.
The Z-axis positioning structure of the clamp comprises a plurality of second dividing grooves and a plurality of first dividing grooves which are distributed in a staggered mode.
A fixture, wherein the fixture comprises a Z-axis positioning structure of the fixture as described above.
Compared with the prior art, the Z-axis positioning structure of the clamp provided by the invention has the advantages that the shell accommodating groove formed in the upper end face of the clamp body is adopted, the Z-axis positioning piece with the upper end in a flap shape is arranged in the Z-axis positioning piece, the expanding bolt used for enabling the flap-shaped part of the Z-axis positioning piece to open and clamp the square shell after being pushed downwards, and the screw accommodating hole used for accommodating the lower end of the expanding bolt are adopted. According to the Z-axis positioning structure provided by the invention, when the square shell is positioned in the Z-axis direction, the square shell is only required to be placed in the shell accommodating groove, and the diameter-enlarging bolt is rotated downwards until the lower end is screwed with the screw accommodating hole, so that the diameter-enlarging bolt drives the petal-shaped part of the Z-axis positioning piece to open and clamp the square shell, and the positioning convenience, the loading and unloading efficiency and the processing efficiency of the square shell are improved.
Drawings
FIG. 1 is a schematic view of a Z-axis positioning structure of a fixture according to a preferred embodiment of the invention.
Fig. 2 is a schematic diagram showing a positional relationship between a rotation driving source and a parallel cross bar in a preferred embodiment of the Z-axis positioning structure of the clamp of the present invention.
FIG. 3 is a schematic view of the Z-axis positioning structure of the fixture according to the preferred embodiment of the present invention.
FIG. 4 is a schematic view of the structure of the base longitudinal plate in the preferred embodiment of the Z-axis positioning structure of the clamp of the present invention.
FIG. 5 is a schematic view of the Z-axis positioning structure of the fixture according to the preferred embodiment of the present invention.
FIG. 6 is a schematic view showing the internal structure of the fixture body in the preferred embodiment of the Z-axis positioning structure of the fixture of the present invention.
FIG. 7 is a schematic view of the structure of the XY axis auxiliary positioning mechanism in the preferred embodiment of the Z axis positioning structure of the fixture of the present invention.
FIG. 8 is a schematic view of a Z-axis positioning mechanism in a preferred embodiment of the Z-axis positioning mechanism of the fixture of the present invention.
FIG. 9 is a schematic view of a Z-axis positioning member in a preferred embodiment of the Z-axis positioning structure of the fixture of the present invention.
FIG. 10 is a schematic view of the structure of the expanding bolt in the preferred embodiment of the Z-axis positioning structure of the clamp of the present invention.
Detailed Description
The invention provides a Z-axis positioning structure of a clamp and the clamp, and the invention is further described in detail below with reference to the accompanying drawings and examples in order to make the purposes, technical schemes and effects of the invention clearer and more definite. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, the Z-axis positioning structure of the fixture provided by the present invention includes: the fixture comprises a fixture base 100, a middle fixing plate 200 and a fixture body 300 which are sequentially arranged from bottom to top, wherein the middle fixing plate 200 is detachably connected above the fixture base 100, and the fixture body 300 is detachably connected on the middle fixing plate 200. In contrast, the clamp body 300 and the middle fixing plate 200 need a connection structure that is convenient to disassemble, and the middle fixing plate 200 does not need to be disassembled, so the connection of the middle fixing plate 200 and the clamp body 300 should be mainly stable.
The jig base 100 includes: the base transverse plate 110 and a plurality of base longitudinal plates 120 arranged at intervals, wherein the base longitudinal plates 120 are fixedly connected to the upper end face of the base transverse plate 110, and the middle fixing plate 200 is detachably connected to the upper end face of the base longitudinal plate 120 and is parallel to the base transverse plate 110. A plurality of rotation driving sources 400 are detachably connected to the lower end surface of the middle fixing plate 200, and as shown in fig. 1, it is preferable that the rotation driving sources 400 are located at a gap between the adjacent base longitudinal plates 120. The upper end of the rotary driving source 400 is connected with a T-shaped blind rivet 410 as shown in FIG. 2. As shown in fig. 2 and 3, the clamp body 300 is provided with a fixing groove 317, and the fixing groove 317 corresponds to the position of the blind rivet 410. The fixing groove 317 is provided with two parallel cross bars 312 in a penetrating manner, the distance between the two parallel cross bars 312 is larger than the width of the blind rivet 410 and smaller than the length of the blind rivet 410, and the blind rivet 410 can rotate in the fixing groove 317 after passing through the gap between the two parallel cross bars 312 and entering the fixing groove 317, so as to fixedly connect the middle fixing plate 200 and the fixture body 300. The jig body 300 is provided with a rail receiving groove 313 in a width direction, and the rail receiving groove 313 accommodates a parallel rail 312 provided through a fixing groove 317. The parallel rail 312 of fig. 2 is actually positioned within the rail receiving slot 313 in the clamp body 300. The parallel rail 312 is shown in isolation in fig. 2 for clarity of illustration of the positional relationship of the blind rivet 410 to the parallel rail 312. Preferably, the fixture body 300 is a rectangular cuboid, and two parallel crossbars 312 are parallel to the wide side of the fixture body 300 and penetrate the fixture body 300. The clamp body 300 may be placed on the upper end surface of the middle fixing plate 200, so that the blind rivet 410 passes through the two parallel cross bars 312, and after the head of the blind rivet 410 passes through the gap between the two parallel cross bars 312, the rotary driving source 400 drives the blind rivet 410 to rotate (usually by 90 °) so that the head of the blind rivet 410 is clamped on the two parallel cross bars 312, thereby preventing the clamp body 300 from moving upwards and being fixed on the upper end surface of the middle fixing plate 200. When the clamp body 300 needs to be disassembled, the rotation driving source 400 drives the blind rivet 410 to rotate first until the blind rivet 410 is parallel to the two parallel crossbars 312 in the length direction, and then the clamp body 300 moves upwards to be far away from the middle fixing plate 200.
In practice, the number of the fixing grooves 317, the rotation driving source 400 and the blind rivet 410 is preferably two, so as to form two sets of connection structures. Thus, the clamp body 300 is provided with two sets of parallel rails 312 in the width direction, each set being two rails parallel to each other. The left side parallel rails are not shown in fig. 3 for the purpose of contrast with the right side configuration. If only one set of connection structure is provided, the connection stability between the clamp body 300 and the middle fixing plate 200 is insufficient, and if three or more sets of connection structures are provided, the accuracy of the distance between the fixing groove 317 and the parallel cross bars 312 is required to be improved, resulting in an increase in processing cost. The rotation driving source 400 is preferably a rotation cylinder, the fixing groove 317 is preferably circular, the fixing groove 317 is an open groove, the opening of the fixing groove 317 is downward, and the fixing groove may be a through groove, i.e., a bi-directional open groove, which means that openings are provided in both the upper and lower directions, so that the processing difficulty is reduced.
In a further preferred embodiment of the present invention, the blind rivet 410 is rotatably connected to the output shaft of the rotary drive source 400 such that the blind rivet 410 is retained above the two parallel rails 312 within the retaining slot 317.
As shown in fig. 4, each base longitudinal plate 120 is provided with a plurality of first threaded holes 121 from bottom to top, the base transverse plate 110 is provided with a plurality of first countersunk holes in adaptation to the first threaded holes 121, and the base longitudinal plate 120 and the base transverse plate 110 are connected with the first countersunk holes through the first threaded holes 121. Each base longitudinal plate 120 is provided with a plurality of second threaded holes 122 from top to bottom, the middle fixing plate 200 is provided with a plurality of second countersunk holes in adaptation to the second threaded holes 122, and the middle fixing plate 200 is connected with the base transverse plate 110 through the second threaded holes 122 and the second countersunk holes.
As shown in fig. 2 and 3, two ends of the middle fixing plate 200 are respectively provided with a first circular positioning hole, the fixture body 300 is provided with a second circular positioning hole 314 adapted to the first circular positioning hole, a diamond pin 211 is inserted into the first circular positioning hole from below, and the middle fixing plate 200 is precisely positioned by the diamond pin 211.
In a further preferred embodiment of the present invention, a bar-shaped groove 315 is formed on each side of the clamp body 300, for accommodating a manipulator or a hand to remove the clamp body from the middle fixing plate.
As shown in fig. 3, the fixing groove 317 is formed on the lower end surface of the clamp body 300.
As shown in fig. 5, the upper end surface of the fixture body 300 is provided with a plurality of housing accommodating grooves 318a, the shape of the housing accommodating grooves 318a is adapted to that of the square housing K, a first corner and a third corner of the fixture body extend outwards respectively to form an anti-seizing groove 318b, a second corner extends outwards to form an irregularly shaped expansion groove (the groove is designed adaptively according to the actual space), and the anti-seizing groove 318b is used for preventing the square housing from seizing; the third side and the fourth side of the housing accommodating groove 318a respectively extend outwards to form a piece taking groove 318c, and the piece taking groove 318c is in a shape of 0 and is used for accommodating a manipulator or a human hand to take out the square housing from the housing accommodating groove 318 a.
In the preferred embodiment of the present invention, the plurality of housing receiving grooves 318a are arranged in two rows, and the two rows of housing receiving grooves 318a are mirror-symmetrical with respect to a first center line of the upper end surface of the fixture body 300, which is parallel to the long side of the fixture body 300.
As shown in fig. 5 and 6, an XY axis positioning groove is formed in the fourth corner of each housing accommodating groove 318a, and a rotating block 311 is disposed in each XY axis positioning groove, that is, two rows of rotating blocks 311 are also disposed, each row of rotating blocks 311 is only provided with one rotating shaft 321, that is, each row of rotating blocks 311 has one rotating shaft 321 penetrating through all the rotating blocks 311, and the rotating blocks 311 can rotate around the rotating shafts 321 under the pushing of an external force. Preferably, the rotation shaft 321 passes through the clamp body 300 and the rotation block 311 in the length direction of the clamp body 300, and two ends of the rotation shaft 321 are fixed on the clamp body 300, and the length of the rotation shaft 321 is the same as the length of the long side of the clamp body 300.
The rotating blocks 311 are provided with a spring accommodating hole on one side away from the housing accommodating groove 318a, a spring 320 is arranged in the spring accommodating hole, the other end of the spring 320 is attached to the fixture body 300, the spring 320 is used for being compressed when the square housing is taken out or put in, the rotating blocks 311 are driven to reset after the square housing is taken out or put in, each rotating block 311 corresponds to one spring 320, all the springs 320 are not shown in the figure (as shown in fig. 7, in order to clearly illustrate the XY axis auxiliary positioning mechanism formed by the rotating blocks 311, the rotating shafts 321 and the springs 320, the invention separately illustrates the structure of the part, and in combination with fig. 6, the positional relationship between the structure of the part and the fixture body 300 can be clearly known by a person skilled in the art.
In the preferred embodiment of the present invention, the upper end surface of the rotating block 311 is stepped, so as to facilitate pushing or pulling by an external force.
As shown in fig. 5, 6 and 8, the housing accommodating groove 318a extends downward to form a Z-axis positioning hole, the Z-axis positioning hole is a stepped hole, and the Z-axis positioning piece 323 and the expanding bolt 324 are accommodated in the Z-axis positioning hole, (in order to clearly illustrate the Z-axis auxiliary positioning mechanism composed of the Z-axis positioning piece 323 and the expanding bolt 324, the present invention separately illustrates the part of the structure, and in combination with fig. 6, a person skilled in the art can clearly know the positional relationship between the part of the structure and the fixture body 300); specifically, as shown in fig. 10, the expanding bolt 324 includes a head and a screw, the upper part of the screw is an inverted frustum, that is, the upper part of the screw is an inverted frustum with a diameter gradually decreasing from top to bottom, the lower part of the screw is a cylinder, and the outer surface of the cylinder has a first thread (not shown in the figure). The lower end surface of the clamp body 300 is further provided with a screw accommodating hole, the lower end of the screw (i.e. the lower part of the cylinder) is accommodated in the screw accommodating hole, the inner surface of the screw accommodating hole is provided with a second thread, and the second thread is matched with the first thread. The section of the screw rod accommodating Kong Zong is T-shaped, the diameter of the opening at the upper end is larger, the diameter of the opening at the lower end is smaller, and the inner surface of the lower end is provided with second threads. The lower part of the screw of the expanding bolt 324 can pass through the step hole and be accommodated in the screw accommodating hole, namely, the screw is screwed with the screw accommodating hole until the lower end surface of the screw of the expanding bolt 324 is flush with the lower end opening of the screw accommodating hole, and the expanding bolt 324 can be detached when not needed. The step hole may also be disposed in a screw receiving block (as shown in fig. 8), where the screw receiving block is fixedly connected with the fixture body 300, and the lower end surface of the screw receiving block is flush with the lower end surface of the fixture body 300. The Z-axis positioning member 323 may be sleeved on the outer edge of the expanding bolt 324 and placed on the step of the step hole.
As shown in fig. 9, the Z-axis positioning member 323 is provided with a plurality of first dividing grooves 327 from top to bottom, the first dividing grooves 327 divide the upper end of the Z-axis positioning member 323 into lobes, when the diameter-enlarging bolt 324 is screwed down, the diameter of the upper portion of the diameter-enlarging bolt 324 gradually increases from bottom to top, so that each lobe of the upper end of the Z-axis positioning member 323 gradually expands outwards, and when the diameter-enlarging bolt 324 is screwed down to the lower end face flush with the opening of the lower end of the stepped hole, the Z-axis positioning member 323 can completely support the round hole in the middle of the square housing. And a contraction ring 326 is arranged around the outer edge of the opening at the upper end of the Z-axis positioning piece 323, each petal body at the upper end of the Z-axis positioning piece 323 expands outwards, and when the round hole in the middle of the square shell is supported, the lower end face of the contraction ring 326 is attached to the square shell, so that the square shell is pressed, axial limit is formed on the square shell, and the square shell is fixed. When the square shell needs to be disassembled, only the diameter-expanding bolt 324 is required to be unscrewed from the upper part, each petal body at the upper end of the Z-axis positioning piece 323 is restored to the original shape, a round hole in the middle of the square shell is not supported any more, the lower end face of the contraction ring 326 is separated from the square shell, and the square shell is not fixed any more. When the square shell is positioned on the Z axis, the shell accommodating groove is only needed to be placed, the diameter-enlarging bolt 324 is rotated downwards until the lower end is screwed up with the screw accommodating hole, the diameter-enlarging bolt causes the petal-shaped part of the Z axis positioning piece 323 to open and clamp the square shell, and the positioning convenience, the loading and unloading efficiency and the processing efficiency of the square shell are improved.
The lower end of the Z-axis positioning member 323 is provided with a plurality of second dividing grooves, the lower end of the Z-axis positioning member 323 is divided into a petal shape by the second dividing grooves, and the plurality of second dividing grooves and the plurality of first dividing grooves 327 are distributed in a staggered manner.
In the preferred embodiment of the present invention, as shown in fig. 5, the inner surface of the side of the Z-axis positioning hole facing away from the rotating block 311 is provided with a protrusion 319, and the protrusion 319 is located above the step of the step hole. As shown in fig. 8 and 9, the outer surface of the Z-axis positioning member 323 is provided with a notch 325, and the protrusion 319 on the Z-axis positioning hole is matched with the notch 325 on the outer surface of the Z-axis positioning member 323. When the Z-axis positioning piece 323 is placed on the step, the protrusion 319 is engaged with the recess 325 to position the Z-axis positioning piece 323 so that the Z-axis positioning piece 323 does not rotate at will. As shown in fig. 6, a clamping rod 322 is further disposed along the long side of the clamp body 300, and the clamping rod 322 is parallel to the long side of the clamp body 300 and has the same length, i.e., the clamping rod 322 is disposed in the clamp body 300. Because the inner side of the Z-axis positioning hole is provided with the protrusion 319, the outer side of the Z-axis positioning hole is correspondingly provided with the concave surface, and the clamping rod 322 is clamped with the concave surface to play a role in supporting the Z-axis positioning hole. Preferably, two holding rods 322 are provided. Because the housing accommodating grooves 318a are arranged in two rows, each housing accommodating groove 318a is provided with a Z-axis positioning hole in a downward extending manner, the Z-axis positioning holes are correspondingly arranged in two rows, and one side, away from the rotating block 311, of each row of Z-axis positioning holes is provided with a clamping rod 322 which is clamped with the concave surfaces of the outer surfaces of all the Z-axis positioning holes in the row.
In the preferred embodiment of the present invention, as shown in fig. 6, a certain space is left at the lower end of the side of the rotating block 311 facing away from the spring 320, so that a certain rotating space is provided for the rotating block 311 during rotation.
In the preferred embodiment of the present invention, as shown in fig. 2, the upper end surface of the middle fixing plate 200 is provided with a convex surface 316, so that the clamp body 300 is easier to be lifted from the upper end surface of the middle fixing plate 200. Preferably, the number of the convex surfaces 316 is 8.
The invention also provides a fixture, which comprises the Z-axis positioning structure of the fixture, wherein the Z-axis positioning structure is specifically described above.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (5)
1. Z axle location structure of anchor clamps, anchor clamps are arranged in the centre gripping square casing in the module of making a video recording, a serial communication port, Z axle location structure of anchor clamps includes: the fixture body and the Z-axis auxiliary positioning mechanism; the auxiliary Z-axis positioning mechanism comprises: z-axis locating piece, expanding bolt and screw rod accommodating hole; the fixture comprises a fixture body, a Z-axis positioning piece, a diameter-expanding bolt, a plurality of first dividing grooves, a plurality of second dividing grooves, a plurality of first dividing grooves and a plurality of second dividing grooves, wherein the upper end of the fixture body is provided with a shell accommodating groove; the upper part of the screw rod of the expanding bolt is an inverted frustum; the Z-axis positioning piece is sleeved on the outer edge of the diameter-expanding bolt; the lower end face of the clamp body is also provided with a screw accommodating hole, and after the diameter-expanding bolt receives downward pushing force, the lower end of the screw of the diameter-expanding bolt is accommodated in the screw accommodating hole, and the petal-shaped area of the Z-axis positioning piece is outwards expanded to clamp the square shell;
the outer edge of the opening at the upper end of the Z-axis positioning piece is provided with a contraction ring which is used for clamping the square shell after being expanded outwards; when the diameter-expanding bolt is in the lower limit, the lower end surface of the shrinkage ring is attached to the square shell; the Z-axis positioning hole is a step hole, and the Z-axis positioning piece is placed on the step; the inner surface of one side of the Z-axis positioning hole, which is away from the rotating block, is provided with a bulge, and the bulge is positioned above the step; the outer surface of the Z-axis positioning piece is provided with a notch, and the protrusion is matched with the notch; the outer surface of one side of the Z-axis positioning hole, which is away from the rotating block, is provided with a concave surface, and a clamping rod is arranged in the long-side direction of the clamp body and is clamped with the concave surface;
when each valve body at the upper end of the Z-axis positioning piece expands outwards to prop up the round hole in the middle of the square shell, the lower end face of the shrinkage ring is attached to the square shell, so that the square shell is pressed, and axial limit is formed on the square shell.
2. The Z-axis positioning structure of a fixture according to claim 1, wherein when the diameter-expanding bolt is at a lower limit, the lower end surface is flush with a lower end opening of the screw receiving hole.
3. The fixture Z-axis positioning structure according to claim 1, wherein a plurality of second dividing grooves are formed in the lower end of the Z-axis positioning member, and the second dividing grooves divide the lower end of the Z-axis positioning member into a flap shape.
4. The Z-axis positioning structure of a fixture according to claim 3, wherein the plurality of second dividing grooves are staggered with the plurality of first dividing grooves.
5. A jig, characterized in that the jig comprises the Z-axis positioning structure of the jig according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347910.5A CN108311897B (en) | 2018-04-18 | 2018-04-18 | Z-axis positioning structure of clamp and clamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347910.5A CN108311897B (en) | 2018-04-18 | 2018-04-18 | Z-axis positioning structure of clamp and clamp |
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| CN108311897A CN108311897A (en) | 2018-07-24 |
| CN108311897B true CN108311897B (en) | 2024-03-15 |
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| CN201810347910.5A Active CN108311897B (en) | 2018-04-18 | 2018-04-18 | Z-axis positioning structure of clamp and clamp |
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