CN109866060B - Positioning base for precise positioning clamp of watchcase - Google Patents
Positioning base for precise positioning clamp of watchcase Download PDFInfo
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- CN109866060B CN109866060B CN201910271816.0A CN201910271816A CN109866060B CN 109866060 B CN109866060 B CN 109866060B CN 201910271816 A CN201910271816 A CN 201910271816A CN 109866060 B CN109866060 B CN 109866060B
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- 238000003825 pressing Methods 0.000 claims description 28
- 230000006835 compression Effects 0.000 claims description 25
- 238000007906 compression Methods 0.000 claims description 25
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application relates to the technical field of watch manufacturing equipment, in particular to a positioning base for a precise positioning clamp of a watch case. According to the positioning base for the precise positioning clamp for the watch case, provided by the application, the positioning boss is arranged on the positioning base of the precise positioning clamp for the watch case, so that the positioning boss is used for positioning the circumferential position of the supporting head, the effect of automatic and rapid positioning can be achieved, the positioning process is almost free from abrasion, and the repeated positioning precision is ensured.
Description
[ Field of technology ]
The application relates to the technical field of watch manufacturing equipment, in particular to a positioning base for a precise positioning clamp of a watch case.
[ Background Art ]
The watch is used as a precision machine, the working of the watch is very fine, and each part of the watch generally needs to be subjected to fine working through a tool clamp.
The watch case of the watch generally comprises a first step of processing a through hole for installing a watch window in the middle, then positioning and fixing the through hole serving as a reference through a clamp, and then processing an end face or a hole and the like in a second step. It should be noted that, because the case has many models, the clamp in the second step is assembled by the base and the stay head that can be replaced to adapt to the cases of different models, the upper end of the stay head fixes the through hole and then positions the case, the lower end of the stay head stretches into the base hole of the base, and then the stay head is fixed in the base hole by the screw that stretches into the base hole radially from the side. However, the positioning is performed in a screw mode, on one hand, the circumferential position of the support head needs to be manually adjusted, and on the other hand, the positioning precision in the next positioning is difficult to ensure after the connection part of the support head and the screw is worn.
[ Invention ]
In order to solve the technical problems, the application aims to provide the positioning base for the precise positioning clamp of the watch case, and the positioning base is arranged on the precise positioning clamp of the watch case, so that the positioning boss is used for positioning the circumferential position of the supporting head, the effect of automatic and rapid positioning can be achieved, the positioning process is almost free from abrasion, and the repeated positioning precision is ensured.
The application is realized by the following technical scheme:
The positioning base for the precise positioning clamp of the watch case is applied to the precise positioning clamp of the watch case so as to position the stay head and comprises a base body, wherein an annular central boss is arranged on the base body in an upward protruding mode, and at least one upward protruding positioning boss is arranged on the upper end face of the central boss so as to be clamped with the bottom of the stay head.
The positioning base for the precise positioning clamp for the watch case is characterized in that the positioning boss extends along the radial direction of the central boss and extends from the inner side to the outer side of the central boss.
The positioning base for the precise positioning clamp for the watch case is characterized in that the upper surface of the central boss is provided with the sector grooves which are uniformly distributed along the circumferential direction, and the positioning boss is positioned in the sector grooves.
The positioning base for the precise positioning clamp of the watch case is characterized in that the section size of the positioning boss is gradually reduced from bottom to top.
The positioning base for the precise positioning clamp of the watch case is characterized in that the positioning bosses are arranged in four and are distributed in a central symmetry mode.
The positioning base for the precise positioning fixture for the watch case as described above, the precise positioning fixture for the watch case includes:
the base is provided with a mounting hole for mounting the stay head, and the positioning base is positioned at the bottom of the mounting hole;
the locking structure is arranged on the base and used for locking the support head in the mounting hole;
The outer expansion top core is positioned in the mounting hole and can be ejected or retracted relative to the mounting hole, and the top of the outer expansion top core is conical with a small upper part and a large lower part;
And the driving structure is connected with the outer expansion ejection core so as to drive the outer expansion ejection core to eject out.
The positioning base for the precise positioning clamp of the watchcase comprises the piston cavity arranged in the base and the driving piston arranged in the piston cavity; the driving piston is connected with the outer expansion jacking core, a connectable air source is formed between the upper end face of the driving piston and the piston cavity to inflate and press down a lower pressure air chamber of the driving piston, and a jacking spring for jacking the driving piston is arranged at the lower end of the driving piston.
The positioning base for the precise positioning clamp for the watchcase is characterized in that a connectable air source is formed between the lower end surface of the driving piston and the piston cavity so as to inflate and lift the jacking air chamber of the driving piston.
The positioning base for the precise positioning clamp of the watchcase comprises the locking structure, wherein the locking structure comprises a ball guide sleeve and a pressing piston;
The ball guide sleeve is arranged on the inner side of the mounting hole, a plurality of balls are arranged on the ball guide sleeve in a penetrating manner, the centers of the balls are positioned between the inner wall and the outer wall of the ball guide sleeve, the balls are distributed along the circumferential direction of the ball guide sleeve, and a pressing movable cavity is formed between the outer wall of the ball guide sleeve and the base;
The compression piston is sleeved on the outer wall of the ball guide sleeve and is positioned in the compression movable cavity, a compression elastic piece used for pressing down the compression piston is arranged between the upper end of the compression piston and the compression movable cavity, and a reset air chamber which can be connected with an air source to inflate and move up the compression piston is formed between the lower end of the compression piston and the compression movable cavity;
The inner wall of the compression piston is provided with a sliding concave part, the surface of the sliding concave part abuts against the ball, the ball is propped against the inside of the mounting hole when the compression piston is pressed down, and the ball can be contracted in the sliding concave part when the compression piston moves up.
The positioning base for the precise positioning clamp of the watchcase comprises a first base body, a second base body and a third base body;
The first seat body is sleeved on the second seat body upwards, the second seat body is sleeved on the driving structure upwards, the driving structure is embedded on the base body upwards, the base body is embedded on the third seat body upwards, and the outer expansion top core is embedded in the center of the driving structure.
Compared with the prior art, the application has the following advantages:
1. Through locating the locating base of the accurate positioning fixture of watchcase with the circumferential position of location boss location support head can reach automatic quick location's effect, and the location process has almost not worn and torn, has guaranteed the precision of repeated location. In addition, the central boss can be embedded to play a role in positioning during assembly.
2. The accurate positioning fixture of watchcase carries out the location processing of watchcase through the appropriate support head of base cooperation, and not only the loading and unloading of support head and watchcase is convenient and fast more, and can swiftly, accurately, repeatedly fix a position the level and the vertical position of support head, and then accurate positioning watchcase guarantees the machining precision of watchcase.
3. The driving structure drives the outer expansion jacking core to prop up the supporting head by using the jacking spring to generate clamping force for supporting the watchcase, and drives the outer expansion jacking core to reset by using air pressure, so that the clamping of the watchcase is simpler and more reliable.
4. The locking structure can simultaneously eject through the balls distributed in the circumferential direction to lock and position, can play the locking and centering roles on the supporting head, is more accurate and reliable in positioning, is stressed in circumferential multiple points, is not easy to wear, and is more reliable in repeated positioning.
5. The base passes through first pedestal, the second pedestal, the base body, the fourth pedestal, drive structure with the layer upon layer nestification of outer top core that rises, then pass through the fix with screw, strengthened axiality between each pedestal, and then promoted the positioning accuracy of anchor clamps.
[ Description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a positioning base for a precise positioning fixture for a watch case according to an embodiment of the present application;
FIG. 2 is a schematic view of an exploded structure of a precise positioning fixture for a wristwatch case according to an embodiment of the application, wherein the stay is not shown;
FIG. 3 is a top view of a precision positioning fixture for a wristwatch case according to an embodiment of the present application, with a brace shown;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a cross-sectional view B-B of FIG. 3;
FIG. 6 is an enlarged view of FIG. 5;
FIG. 7 is a front view in full section of a brace head according to an embodiment of the application;
fig. 8 is a top view of a brace according to an embodiment of the application.
[ Detailed description ] of the invention
In order to make the technical problems, technical schemes and beneficial effects solved by the application more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. 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 application.
As shown in fig. 1 to 8, the embodiment of the application provides a precise positioning fixture for a watchcase, which comprises a supporting head 10, a base 1, a positioning base 3, a locking structure 2, an external expansion top core 4 and a driving structure 5.
The base 1 is provided with a mounting hole 11, and the positioning base is positioned at the bottom of the mounting hole 11. The stay head 10 is provided with an elastic stay part 101 for fixing a watchcase and a conical top hole 102 for propping up the elastic stay part 101. The locking structure 2 is arranged on the base 1 and is used for locking the stay 10 in the mounting hole 11. The outer expansion top core 4 is positioned in the mounting hole 11 and can be ejected or retracted relative to the mounting hole 11, and the top of the outer expansion top core 4 is conical with smaller top and larger bottom corresponding to the conical top hole 102. The driving structure 5 is connected with the outer expansion core 4, so as to drive the outer expansion core 4 to eject out and extend into the conical ejection hole 102 to further expand the elastic expanding portion 101.
The positioning base for the precise positioning clamp of the watch case comprises a base body 3, wherein an annular central boss 33 is arranged on the base body 3 in an upward protruding mode, and at least one upward protruding positioning boss 31 is arranged on the upper end face of the central boss 33 so as to be clamped with the bottom of the supporting head. Through locating the positioning base of the accurate positioning fixture of watchcase with the circumference position of location boss 31 location support head 10 can reach automatic quick location's effect, and the location process is little worn and torn, has guaranteed the precision of repeated location. In addition, the central boss 33 can be positioned by being fitted during assembly. Preferably, the central boss 33 is cylindrical.
In this embodiment, the positioning boss 31 extends in the radial direction of the center boss 33, and extends from the inside to the outside of the center boss 33. The strength of the positioning boss 31 is improved, so that the positioning boss can bear larger load, and the positioning reliability is improved.
Further, the upper surface of the central boss 33 is provided with fan-shaped grooves 331 uniformly distributed along the circumferential direction, and the positioning boss 31 is located in the fan-shaped grooves 331. The bottom of the support head is clamped with the fan-shaped groove 331 to realize the preset position when the support head is assembled by virtue of a larger positioning area in the fan-shaped groove 331, and then clamped and positioned with the positioning boss 31, so that the assembly and positioning of the support head are easier and smoother.
The cross-sectional dimension of the positioning boss 31 becomes gradually smaller from bottom to top. According to the technical scheme, the support head 10 plays a role in guiding and positioning when being clamped on the positioning base, so that the positioning efficiency is further improved. Alternatively, the cross section of the positioning boss 31 is trapezoidal.
The positioning bosses 31 are four and are distributed in a central symmetry manner. The positioning accuracy and reliability can be further enhanced by the multiple positioning stay 10 with the multiple positioning bosses 31.
When the precise positioning clamp for the watchcase is used, firstly, after the supporting head 10 matched with the watchcase to be processed is selected, the supporting head 10 is arranged in the mounting hole 11, a positioning groove is formed in the bottom of the supporting head 10, and when the supporting head 10 is arranged in the mounting hole 11, the positioning groove is clamped on the positioning boss 31 of the positioning base. At this time, the circumferential position of the supporting head 10 is limited, the vertical position of the supporting head 10 is positioned through the locking structure 2, the supporting head 10 is locked in the mounting hole 11, then, the watch case is sleeved on the supporting head 10, the outer expansion top core 4 is ejected through the driving structure 5 and stretches into the conical top hole 102 so as to stretch the elastic stretching part 101, and the watch case is tightly stretched and fixed when the elastic stretching part 101 is stretched. The accurate positioning fixture of watchcase carries out the location processing of watchcase through the appropriate support head of base cooperation, and not only the loading and unloading of support head and watchcase is convenient and fast more, and can swiftly, accurately, repeatedly fix a position the level and the vertical position of support head, and then accurate positioning watchcase guarantees the machining precision of watchcase.
Specifically, the lower ends of the stay 10 are connected and the upper ends thereof are separated into a plurality of radially expandable portions 105 to form the elastic expansion portion 101, and the upper ends of the stay 10 separated into a plurality of radially expandable portions 105 respectively extend downward and enclose to form the tapered top hole 102.
The stay 10 is made of metal, preferably die steel, and is formed by equally dividing a cylindrical steel body into a plurality of segments with a fan-shaped cross section from top to bottom, and more preferably, the segments are equally divided into 4 segments of a plurality of radially expandable segments 105. The supporting head 10 is elastically reset by metal, and the supporting of the elastic supporting part 101 is realized by supporting the conical top hole 102, so that the structure is simple, the watch case can be accurately locked in the middle, and the processing precision is ensured.
Further, a guiding hole 104 for guiding the outer expansion top core 4 is formed around the lower end of the supporting head 10. So that the ejection of the outer expansion ejection core 4 is smoother and more accurate.
In this embodiment, the positioning structure 2 is a positioning protrusion disposed at the bottom of the mounting hole 11. The positioning protrusions are distributed in a cross shape or in a star shape. The structure is simple, and reliable positioning of the watchcase is realized by matching with the locking structure 2. Moreover, the cross section of the positioning bulge is trapezoidal, so that the positioning bulge can play a role in guiding from top to bottom, and the positioning is more accurate.
In this embodiment, the driving structure 5 includes a piston cavity 51 disposed in the base 1 and a driving piston 52 disposed in the piston cavity 51; the driving piston 52 is connected with the outer expansion top core 4, an air source which can be connected with the piston cavity 51 is formed between the upper end surface of the driving piston 52 so as to inflate and press down the lower pressure air chamber 53 of the driving piston 52, and a top spring 54 for lifting the driving piston 52 is arranged at the lower end of the driving piston 52. Specifically, the jack-up spring 54 is a plurality of stacked belleville springs. The disc spring is also called a disc spring, has high rigidity, and can generate great load and provide enough jacking force through coaxially overlapping a plurality of disc springs.
When the telescopic expansion type elastic expansion device is used, the jacking spring 54 continuously applies pressure to the outer expansion jacking core 4, the outer expansion jacking core 4 is ejected out and stretches into the conical jacking hole 102 to further expand the elastic expansion part 101, when the lower pressure air chamber 53 is inflated, the driving piston 52 can be driven to move downwards to drive the outer expansion jacking core 4 to move downwards, the elastic expansion part 101 is reset and folded after losing the expanding force, and at the moment, a watchcase arranged on a support head can be detached to carry out next clamping. The driving structure 5 drives the outer expansion jacking core 4 to prop up the supporting head by using the jacking spring 54 to generate clamping force for propping up the watchcase, and drives the outer expansion jacking core 4 to reset by using air pressure, so that the clamping of the watchcase is simpler and more reliable.
More preferably, a connectable air source is formed between the lower end surface of the driving piston 52 and the piston cavity 51 to inflate a jacking air chamber 55 jacking the driving piston 52. The jacking air chamber 55 can add with the acting force of the jacking spring 54 to strengthen the clamping force of the support head so as to adapt to the watchcases with different materials.
In this embodiment, the locking structure 2 includes a ball guide 21 and a pressing piston 23. The ball guide sleeve 21 is arranged at the inner side of the mounting hole 11, a plurality of balls 211 are arranged on the ball guide sleeve 21 in a penetrating manner, centers of the balls 211 are limited between the inner wall and the outer wall of the ball guide sleeve 21, the balls 211 are distributed along the circumferential direction of the ball guide sleeve 21, and a pressing movable cavity 22 is formed between the outer wall of the ball guide sleeve 21 and the base 1.
The pressing piston 23 is sleeved on the outer wall of the ball guide sleeve 21 and is located in the pressing movable cavity 22, a pressing elastic piece 231 for pressing down the pressing piston 23 is arranged between the upper end of the pressing piston 23 and the pressing movable cavity 22, specifically, the pressing elastic piece 231 is a plurality of springs uniformly distributed along the circumferential direction, and through multiple tests, the number of springs is preferably 12. By using the elastic force of the pressing elastic member 231 as the pressing force, a more stable pressure can be generated on the pressing piston 23 to finally lock the stay, and of course, air pressure can be used for pressing.
The lower end of the pressing piston 23 and the pressing movable cavity 22 are provided with a reset air chamber 232 which can be connected with an air source to inflate and move the pressing piston 23 upwards.
The inner wall of the pressing piston 23 is provided with a sliding recess 233 with a surface abutting against the ball 211, the ball 211 is pressed into the mounting hole 11 when the pressing piston 23 is pressed down, and the ball 211 can be retracted in the sliding recess 233 when the pressing piston 23 is moved up.
When in use, the air is inflated into the reset air chamber 232, the pressing piston 23 moves upwards, the sliding recess 233 moves to the ball 211, the ball can be retracted in the sliding recess 233, at this time, the support head 10 is installed in the mounting hole 11, then the air inflation is stopped, the pressing elastic member 231 presses the pressing piston 23 downwards, the sliding recess 233 moves downwards, and the ball 211 is ejected out of the mounting hole 11 through the inner wall of the ball guide sleeve 21, so as to lock the support head 10 in the mounting hole 11. Because the balls 211 are circumferentially distributed on the ball guide sleeve 21, the circumferentially distributed balls 211 are simultaneously ejected out when the sliding concave portion 233 moves upwards, so that the locking structure 2 can lock and center the stay head, the positioning is more accurate and reliable, the circumferential multipoint stress is less prone to abrasion, and the repeated positioning is more reliable.
Correspondingly, a locking groove 103 is formed on the circumferential side of the support head 10 to accommodate the ball 211 pressed toward the inside of the mounting hole 11, and a locking inclined plane 1031 is formed at the lower end of the locking groove 103. The balls 211 are pressed against the locking inclined surfaces 1031 when being ejected into the mounting holes 11, and radial and downward component forces are generated on the stay head through the locking inclined surfaces 1031 so as to more accurately position and lock the stay head.
More preferably, the lock groove 103 is filled with an elastic material 1032. The locking groove 103 provides a receiving space, and the elastic material 1032 provides a moderate damping when the ball 211 is ejected, so that the ejection locking of the ball 211 is more stable.
In this embodiment, the base 1 includes a first base 12, a second base 13, and a third base 15; the first seat body 12 is sleeved on the second seat body 13 upwards, the second seat body 13 is sleeved on the driving structure 5 upwards, the driving structure 5 is embedded on the base body 3 upwards, the base body 3 is embedded on the third seat body 15 upwards, and the outer expansion top core 4 is embedded in the center position of the driving structure 5.
The base 1 is nested layer by layer through the first base 12, the second base 13, the base body 3, the fourth base 15, the driving structure 5 and the outer expansion top core 4, and then the coaxiality between the bases is enhanced through screw fixation, and the positioning accuracy of the clamp is further improved. In order to enhance the air tightness, sealing rings are arranged between the nested parts.
Further, the base 1 is provided with a mounting portion 15 for fixing the case precision positioning jig to a processing apparatus. The device can be mounted on CNC equipment more conveniently and rapidly to process the surface shell.
In summary, the present application has the following beneficial effects, but is not limited to:
1. through locating the positioning base of the accurate positioning fixture of watchcase with the circumference position of location boss 31 location support head 10 can reach automatic quick location's effect, and the location process is little worn and torn, has guaranteed the precision of repeated location. In addition, the central boss 33 can be positioned by being fitted during assembly.
2. The accurate positioning fixture of watchcase carries out the location processing of watchcase through the appropriate support head of base cooperation, and not only the loading and unloading of support head and watchcase is convenient and fast more, and can swiftly, accurately, repeatedly fix a position the level and the vertical position of support head, and then accurate positioning watchcase guarantees the machining precision of watchcase.
3. The driving structure 5 drives the outer expansion jacking core 4 to prop up the supporting head by using the jacking spring 54 to generate clamping force for propping up the watchcase, and drives the outer expansion jacking core 4 to reset by using air pressure, so that the clamping of the watchcase is simpler and more reliable.
4. The locking structure 2 is ejected simultaneously through the balls 211 distributed in the circumferential direction to carry out locking and positioning, the locking and centering functions can be achieved on the support head, positioning is more accurate and reliable, the circumferential direction is stressed in multiple points, abrasion is not easy, and repeated positioning is more reliable.
5. The base 1 is nested layer by layer through the first base 12, the second base 13, the base body 3, the fourth base 15, the driving structure 5 and the outer expansion top core 4, and then the coaxiality between the bases is enhanced through screw fixation, and the positioning accuracy of the clamp is further improved.
It should be understood that the terms "first," "second," and the like are used herein to describe various information, but such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the application. Furthermore, references to orientations or positional relationships of the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc. are based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present application.
The foregoing description of one or more embodiments provided in connection with the specific disclosure is not intended to limit the practice of the application to such description. The method, structure, and the like similar to or identical to those of the present application, or a plurality of technical deductions or substitutions are made on the premise of the conception of the present application, and are considered to be the protection scope of the present application.
Claims (3)
1. The fixture for precisely positioning the watchcase is characterized by comprising a positioning base which is applied to the precise positioning fixture of the watchcase to position the position of the stay head;
the positioning base comprises a base body (3), wherein an annular central boss (33) is convexly arranged on the base body (3) upwards, and at least one positioning boss (31) which is convexly arranged upwards is arranged on the upper end surface of the central boss (33) so as to be clamped with the bottom of the support head;
the positioning boss (31) extends in the radial direction of the central boss (33) and extends from the inner side to the outer side of the central boss (33);
The upper surface of the central boss (33) is provided with fan-shaped grooves (331) which are uniformly distributed along the circumferential direction, and the positioning boss (31) is positioned in the fan-shaped grooves (331);
The base (1) is provided with a mounting hole (11) for mounting the supporting head (10), and the positioning base is positioned at the bottom of the mounting hole (11);
the locking structure (2) is arranged on the base (1) and is used for locking the support head (10) in the mounting hole (11);
the outer expansion top core (4) is positioned in the mounting hole (11) and can be ejected out or retracted relative to the mounting hole (11), and the top of the outer expansion top core (4) is conical with a small top and a large bottom;
The driving structure (5) is connected with the outer expansion ejection core (4) to drive the outer expansion ejection core (4) to eject out;
The driving structure (5) comprises a piston cavity (51) arranged in the base (1) and a driving piston (52) arranged in the piston cavity (51); the driving piston (52) is connected with the outer expansion jacking core (4), a lower pressure air chamber (53) which can be connected with an air source is formed between the upper end surface of the driving piston (52) and the piston cavity (51) so as to inflate and press down the driving piston (52), and a jacking spring (54) for jacking the driving piston (52) is arranged at the lower end of the driving piston (52);
a jacking air chamber (55) which can be connected with an air source to inflate and jack the driving piston (52) is formed between the lower end surface of the driving piston (52) and the piston cavity (51);
the locking structure (2) comprises a ball guide sleeve (21) and a compression piston (23);
the ball guide sleeve (21) is arranged on the inner side of the mounting hole (11), a plurality of balls (211) are arranged on the ball guide sleeve (21) in a penetrating mode, the centers of the balls (211) are located between the inner wall and the outer wall of the ball guide sleeve (21), the balls (211) are distributed along the circumferential direction of the ball guide sleeve (21), and a pressing movable cavity (22) is formed between the outer wall of the ball guide sleeve (21) and the base (1);
The compression piston (23) is sleeved on the outer wall of the ball guide sleeve (21) and is positioned in the compression movable cavity (22), a compression elastic piece (231) for pressing down the compression piston (23) is arranged between the upper end of the compression piston (23) and the compression movable cavity (22), and a reset air chamber (232) which can be connected with an air source to inflate and move up the compression piston (23) is formed between the lower end of the compression piston (23) and the compression movable cavity (22);
the inner wall of the compression piston (23) is provided with a sliding concave part (233) with the surface propped against the ball (211), the ball (211) is propped against the inside of the mounting hole (11) when the compression piston (23) is pressed down, and the ball (211) can be retracted in the sliding concave part (233) when the compression piston (23) is moved up;
The base (1) comprises a first base body (12), a second base body (13) and a third base body (15);
The first seat body (12) is sleeved on the second seat body (13) upwards, the second seat body (13) is sleeved on the driving structure (5) upwards, the driving structure (5) is embedded on the base body (3) upwards, the base body (3) is embedded on the third seat body (15) upwards, and the outer expansion top core (4) is embedded in the central position of the driving structure (5).
2. The clamp for precise positioning of a watchcase according to claim 1, characterized in that the cross-sectional dimensions of the positioning boss (31) taper from bottom to top.
3. The fixture for precise positioning of a watchcase according to claim 1, wherein the positioning bosses (31) are provided with four and are distributed centrally symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271816.0A CN109866060B (en) | 2019-04-04 | 2019-04-04 | Positioning base for precise positioning clamp of watchcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271816.0A CN109866060B (en) | 2019-04-04 | 2019-04-04 | Positioning base for precise positioning clamp of watchcase |
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| Publication Number | Publication Date |
|---|---|
| CN109866060A CN109866060A (en) | 2019-06-11 |
| CN109866060B true CN109866060B (en) | 2024-06-04 |
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| CN201910271816.0A Active CN109866060B (en) | 2019-04-04 | 2019-04-04 | Positioning base for precise positioning clamp of watchcase |
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| CN110153761B (en) * | 2019-06-21 | 2024-04-16 | 珠海罗西尼表业有限公司 | Watch part machining tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1693018A (en) * | 2004-05-04 | 2005-11-09 | 厄罗瓦公司 | Clamping equipment for fixing collet on fastening plate |
| TWM485787U (en) * | 2013-11-29 | 2014-09-11 | Xiu-Ying Jiangzhang | Hydraulic or pneumatic chuck structure with quick release function |
| CN204295371U (en) * | 2014-11-21 | 2015-04-29 | 西安斯诺机械智能科技有限公司 | The powerful clamping device of the flexible quick position of mistake proofing |
| CN106914764A (en) * | 2015-12-25 | 2017-07-04 | 庄旭彬 | Floating type clamping device |
| CN109550988A (en) * | 2018-12-07 | 2019-04-02 | 广州市昊志机电股份有限公司 | A kind of high precision machine tool dabber clamp and its clamping method |
| CN109551279A (en) * | 2018-12-07 | 2019-04-02 | 广州市昊志机电股份有限公司 | A kind of high-precision automatic lathe mandrel fixture |
| CN209936424U (en) * | 2019-04-04 | 2020-01-14 | 金晖(中山)金属制造有限公司 | Positioning base for accurate positioning clamp of watchcase |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE554878T1 (en) * | 2008-01-28 | 2012-05-15 | Pascal Eng Corp | DEVICE FOR POSITIONING AND FASTENING WORK PALLETS |
-
2019
- 2019-04-04 CN CN201910271816.0A patent/CN109866060B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1693018A (en) * | 2004-05-04 | 2005-11-09 | 厄罗瓦公司 | Clamping equipment for fixing collet on fastening plate |
| TWM485787U (en) * | 2013-11-29 | 2014-09-11 | Xiu-Ying Jiangzhang | Hydraulic or pneumatic chuck structure with quick release function |
| CN204295371U (en) * | 2014-11-21 | 2015-04-29 | 西安斯诺机械智能科技有限公司 | The powerful clamping device of the flexible quick position of mistake proofing |
| CN106914764A (en) * | 2015-12-25 | 2017-07-04 | 庄旭彬 | Floating type clamping device |
| CN109550988A (en) * | 2018-12-07 | 2019-04-02 | 广州市昊志机电股份有限公司 | A kind of high precision machine tool dabber clamp and its clamping method |
| CN109551279A (en) * | 2018-12-07 | 2019-04-02 | 广州市昊志机电股份有限公司 | A kind of high-precision automatic lathe mandrel fixture |
| CN209936424U (en) * | 2019-04-04 | 2020-01-14 | 金晖(中山)金属制造有限公司 | Positioning base for accurate positioning clamp of watchcase |
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| CN109866060A (en) | 2019-06-11 |
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