CN215861190U - Positioning pin of checking fixture - Google Patents
Positioning pin of checking fixture Download PDFInfo
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- CN215861190U CN215861190U CN202121445335.6U CN202121445335U CN215861190U CN 215861190 U CN215861190 U CN 215861190U CN 202121445335 U CN202121445335 U CN 202121445335U CN 215861190 U CN215861190 U CN 215861190U
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Abstract
The utility model discloses a positioning pin of a checking fixture, relates to the technical field of positioning pins, and solves the problem that an existing positioning pin cannot be assembled quickly under the condition that the operation space is limited. Comprises a jacket, a limiting component and a driving component; the outer sleeve is provided with a via hole along the length direction; the limiting assembly comprises a hook piece and a guide shaft, the hook piece comprises a hook part, an extension rod and a pin shaft, the extension rod is arranged in the through hole, the hook part and the pin shaft are respectively arranged at two ends of the extension rod, and the end part of the hook part extends out of the first end of the outer sleeve; one end of the extension bar close to the hook part is also provided with a guide bar hole, a guide shaft is in sliding fit with the guide bar hole, and at least one end of the guide shaft is fixedly connected with the inner wall of the via hole; the driving component is arranged at the second end of the outer sleeve and is hinged with the extension bar through a pin shaft, and the hook piece is driven to move along the direction of the guide strip hole. The utility model can realize rapid assembly under the condition of limited operation space, and improves the assembly efficiency of the positioning pin.
Description
Technical Field
The utility model relates to the technical field of positioning pins, in particular to a positioning pin of a checking fixture.
Background
The left/right fixed side tail lamp inspection tool is a simulated real lamp assembly, is a handheld special inspection device for measuring and evaluating the dimensional accuracy of a body-in-white on a car, because the assembly and the positioning of the real lamp are realized by adopting the ball socket on the bulb matched tail lamp base plate, the diameter of the aperture of the sheet metal hole where the ball socket is assembled is very small, the fixture cannot simultaneously realize the fastening or clamping function of the positioning belt on the structure, generally, the positioning and the fastening are separately designed, the non-positioning part of the positioning pin is washed out of an external thread, then the vehicle body is screwed by a tightening device with internal threads, the steps are complicated, and when the positioning pin is assembled, operating space is narrow and small on the automobile body, can't fix a position the position of fastening with binding clasp or tightening bolt, need stretch the hand in the car or the operator gets into the car in to operate, troublesome poeration and can't accomplish rapid Assembly, and then influence inspection efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a positioning pin of a checking fixture, which aims to solve the problems that the existing positioning pin provided by the background art is complicated to assemble and cannot be assembled quickly under the condition of limited operation space.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a positioning pin of a checking fixture comprises a jacket, a limiting assembly and a driving assembly;
the outer sleeve is provided with a first end and a second end which are opposite, and a through hole is formed in the outer sleeve along the length direction of the outer sleeve;
the limiting assembly comprises a hook piece and a guide shaft, the hook piece comprises a hook part, an extension rod and a pin shaft, the extension rod is arranged in the through hole, the hook part and the pin shaft are respectively arranged at two ends of the extension rod, and the end part of the hook part extends out of the first end of the outer sleeve; one end of the extension bar, which is close to the hook part, is also provided with a guide bar hole, the guide shaft is in sliding fit with the guide bar hole, and at least one end of the guide shaft is fixedly connected with the inner wall of the via hole;
the driving assembly is arranged at the second end of the outer sleeve and is hinged to the extension rod through the pin shaft, and the driving assembly is used for driving the hook piece to move along the direction of the guide strip hole so that the hook portion is matched with the outer sleeve to lock or release the metal plate hole.
Preferably, the driving assembly comprises a rotating handle and a moving screw, the rotating handle and the moving screw are provided with a first end and a second end which are opposite to each other, the rotating handle is rotatably arranged at the second end of the outer sleeve, the rotating handle is provided with an internal threaded hole, and the axial direction of the internal threaded hole is the same as the axial direction of the through hole; the movement screw is in threaded fit with the internal threaded hole, the first end of the movement screw is connected with the lengthening rod, and the second end of the movement screw penetrates out of the internal threaded hole;
the rotatable locating part that is equipped with on the overcoat, the locating part with the first end fixed connection of twist grip.
Preferably, the driving assembly further comprises a guide member, the guide member has a first end and a second end which are opposite to each other, the first end of the guide member is arranged in the through hole, the first end of the guide member is hinged with the extension bar through the pin shaft, and the second end of the guide member is fixedly connected with the first end of the moving screw rod;
the second end of the guide piece is further sleeved with a spring, and the spring is arranged between the rotating handle and the first end of the guide piece in a telescopic mode.
Preferably, the diameter of the first end of the guide member is larger than the diameter of the second end of the guide member, and the diameter of the spring is smaller than the diameter of the first end of the guide member.
Preferably, the positioning pin further comprises a shaft sleeve, the shaft sleeve is sleeved at the second end of the outer sleeve, and an annular groove is formed in the outer annular wall of the shaft sleeve;
the limiting piece is a clamp spring which is arranged in the annular groove, and the clamp spring can rotate around the outer sleeve along the annular groove;
the first end of the rotating handle is further provided with a sleeving hole along the axial direction, the sleeving hole and the internal thread hole are respectively formed in the first end and the second end of the rotating handle, the sleeving hole is sleeved at the second end of the shaft sleeve, and the end face of the first end of the rotating handle is fixedly connected with the clamp spring.
Preferably, a plurality of grooves are formed in the ring groove, balls are rotatably arranged in the grooves, and the balls are in point contact with the surface points of the snap spring.
Preferably, a plurality of the balls are uniformly arranged along the groove bottom of the ring groove at intervals.
Preferably, the direction strip hole includes first hole and the second hole of intercommunication each other, first hole is close to the first end of hook piece, the second hole is close to the second end of hook piece, the length direction in first hole with the contained angle has between the length direction in second hole, the contained angle is the obtuse angle, the length direction in first hole with the length direction of hook piece is the same, the second hole with hook portion is located same one side in first hole.
Preferably, the first end of the outer sleeve is further provided with an open limiting pin, the open limiting pin is provided with a guide channel along the length direction of the open limiting pin, and the first end of the hook piece extends to the outside of the first end of the outer sleeve from the guide channel;
the opening limiting pin is provided with a first end and a second end which are opposite, the second end of the opening limiting pin is fixedly connected with the outer sleeve, a limiting groove is formed in the side wall of the first end of the opening limiting pin, the limiting groove is communicated with the guide channel, and the hook portion can be penetrated out of the limiting groove.
Preferably, a circle of boss is arranged in the middle of the outer ring wall of the open limit pin, and the hook part can be in contact with the end face, facing the first end of the open limit pin, of the boss.
The utility model has the beneficial effects that:
according to the technical scheme, the positioning pin disclosed by the utility model drives the hook piece of the limiting component to move through the driving component, so that a clamping space is formed between the hook part of the hook piece and the end part of the outer sleeve and is used for locking the sheet metal plate around the sheet metal hole, and therefore, the function that the positioning pin can be quickly installed is achieved, the operation is simple, and further, the inspection efficiency of the inspection tool can be improved; meanwhile, the hook sheet is reversely driven by the driving component, so that the positioning pin can be quickly released;
the technical scheme also discloses an extension bar, the drive component drives the extension bar to move, the extension bar is provided with a guide strip hole, and the guide strip hole is matched with a guide shaft to limit the running direction and the moving path of the extension bar so as to ensure that the hook piece can stably move;
simultaneously, the extension bar that adds has correspondingly increased overcoat length to the length of increase locating pin makes the operator need not to stretch into the automobile body with the hand, can carry out the locking and the release of locating pin outside the automobile body, reduces the operation degree of difficulty, also can realize rapid Assembly under the limited condition of operating space, improves the efficiency that the operator used the locating pin.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention taken along the axis of the jacket;
FIG. 2 is a schematic structural diagram of a locking process according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a releasing process according to an embodiment of the present invention.
The labels in the figure are: 1-outer sleeve, 2-limiting component, 3-guiding component, 4-driving component, 5-open limiting pin, 101-via hole, 201-extension rod, 202-hook part, 203-guiding shaft, 204-first hole, 205-second hole, 206-pin shaft, 401-rotating handle, 402-moving screw rod, 403-snap spring, 501-guiding channel, 502-limiting groove, 503-boss, 504-avoiding groove, 6-spring, 7-ball and 8-shaft sleeve.
Detailed Description
The technical solutions in the present embodiments will be clearly and completely described below with reference to the accompanying drawings in the present embodiments, which, however, should not be construed as limiting the utility model to specific embodiments, but are for explanation and understanding only:
this embodiment provides a examine a locating pin, includes: the device comprises an outer sleeve 1, a limiting component 2 and a driving component 4.
The outer sleeve 1 is provided with a first end and a second end which are opposite, the outer sleeve 1 is provided with a through hole 101 along the length direction of the outer sleeve, and the shape of the outer sleeve 1 can be set to be any column shape according to requirements.
The limiting assembly 2 comprises a hook piece and a guide shaft 203, wherein the width and the thickness of the hook piece are enough to enable the hook piece to move along the radial direction of the through hole 101 in the through hole 101.
The hook piece comprises a hook part 202, an extension rod 201 and a pin shaft 206, wherein the extension rod 201 is arranged in the through hole 101. The hook part 202 and the pin shaft 206 are respectively arranged at two ends of the extension bar 201 in the length direction, the end part of the hook part 202 extends out of the first end of the outer sleeve 1, and the hook part 202 and the outer sleeve 1 can jointly act to complete clamping action. The extension bar 201 is close to the one end of hook portion 202 and still is equipped with the guide strip hole, guide shaft 203 and guide strip hole sliding fit, and at least one end and via hole 101 inner wall fixed connection of guide shaft 203, the length of guide shaft 201 as long as can guarantee always with guide strip hole sliding fit can. In this embodiment, the both ends of guiding axle 201 all with via hole 101 inner wall fixed connection to make guiding axle 201 inseparabler with being connected of via hole 101, guiding axle 201 is difficult for taking place to drop after long-time use and leads to the locating pin to be unable to use.
Referring to fig. 2 and 3, the positioning pin drives the extension rod 201 to move through the driving component 4, so that the hook portion 202 of the hook piece moves away from the first end of the outer sleeve 1, a clamping space is formed between the hook portion 202 and the outer sleeve 1, after the positioning pin is inserted into the sheet metal hole, the driving component 4 reversely drives the extension rod 201, so that the hook portion 202 of the hook piece moves close to the first end of the outer sleeve 1 until the hook portion 202 and the first end of the outer sleeve 1 jointly clamp the sheet metal plates around the sheet metal hole, meanwhile, the hook piece is reversely driven through the driving component 4, the positioning pin can be quickly released, and the operation is simple; the extension bar is added to the hook piece, the length of overcoat also correspondingly increases, has increased the length of locating pin, makes the operator need not to stretch into the automobile body with the hand, can carry out the locking and the release of locating pin outside the automobile body, also can realize rapid Assembly under the limited circumstances of operating space, and the operation degree of difficulty is low, improves the efficiency that the operator used the locating pin to further promote the efficiency of examining the utensil inspection.
The specific structure of this embodiment is as follows:
referring to fig. 2 and 3, in the present embodiment, the driving assembly 4 includes a rotary handle 401 and a moving screw 402, the rotary handle 401 and the moving screw 402 both have opposite first and second ends, the rotary handle 401 is rotatably disposed at the second end of the casing 1, the rotary handle 401 is provided with an internal threaded hole, and the axial direction of the internal threaded hole is the same as the axial direction of the through hole 101; the movement screw 402 is in threaded fit with the internal threaded hole, the first end of the movement screw 402 extends into the through hole 101, the second end of the movement screw 402 penetrates out of the internal threaded hole and extends out of the rotary handle 401, namely, the length of the movement screw 402 is greater than that of the rotary handle 401, so that the movement screw 402 cannot be separated from the internal threaded hole in the relative movement process of the rotary handle 401 and the movement screw 402.
The outer sleeve 1 may further be rotatably provided with a limiting member, and the limiting member is fixedly connected to the first end of the rotating handle 401, so that the rotating handle 401 does not displace along the axial direction of the outer sleeve 1 when rotating compared with the outer sleeve 1.
In this embodiment, the driving assembly 4 further includes a guiding element 3, the guiding element 3 has a first end and a second end opposite to each other, the second end of the guiding element 3 is fixedly connected to the first end of the moving screw 402, the first end of the guiding element 3 is disposed in the via hole 101, and the first end of the guiding element 3 is hinged to the extension bar 201 through the pin shaft 206, so that the extension bar 201 can rotate around the pin shaft 206 during moving along the length direction of the via hole 101. In this embodiment, the guide 3 is in clearance fit with the via hole 101, so that the driving assembly 4 has high stability when driving the guide 3 to reciprocate along the radial direction of the via hole 101, and in consideration of convenience in processing, in this embodiment, the via hole 101 is a through hole with a circular cross section, and the thickest part of the guide 3 is cylindrical. To improve the precision of the positioning pin, the second end of the guiding element 3 may be provided with a screw mounting hole, and the moving screw 402 is in interference fit with the screw mounting hole.
Still cup jointed spring 6 on the second end of guide 3, spring 6 is scalable to be set up between the first end of twist grip 401 and guide 3, and the both ends of spring 6 can be respectively through welded mode and twist grip 401 and guide 3 fixed connection, also can be through setting up protruding edge on guide 3, set up spring 6 between protruding edge and twist grip 401's interior terminal surface.
Meanwhile, when the rotating handle 401 rotates and drives the guide piece 3 to move towards the direction far away from the rotating handle 401, the spring 6 is gradually compressed, in order to overcome the elasticity of the spring 6, the force required when the rotating handle 401 is rotated is gradually increased, which is beneficial for an operator to judge the locking degree of the positioning pin and avoids the deformation of the sheet metal hole caused by the fact that the hook part 202 of the positioning pin excessively presses the periphery of the sheet metal hole; and when the rotating handle 401 rotates and drives the guide part 3 to move towards the direction close to the rotating handle 401, because the spring 6 is reset to the natural state from the compressed state, the spring 6 can give a certain force to the rotating handle 401, the process of releasing the positioning pin from the sheet metal hole is labor-saving, and the positioning pin is convenient for an operator to rapidly detach.
Specifically, referring to fig. 1 and 2, in the present embodiment, the diameter of the first end of the guide 3 is larger than that of the second end of the guide 3, and the diameter of the spring 6 is smaller than that of the first end of the guide 3, so that the spring 6 can be mounted on the second end of the guide 3 without welding, thereby facilitating the assembly of the positioning pin.
In this embodiment, the locating pin still includes axle sleeve 8, axle sleeve 8 cup joints the second end at overcoat 1, axle sleeve 8 and 1 interference fit of overcoat, so that the installation, the screw still can be seted up on the axle sleeve 8, and through the bolt, axle sleeve 8 is equipped with the axial hole that is used for 3 second ends of guide to wear out, the internal diameter of axial hole is less than the diameter of 3 first ends of guide, in order to restrict the first end of guide 3 in via hole 101, and then make in this embodiment, the both ends of spring 6 offset with the first end of guide 3 and the inner wall of axle sleeve 8 respectively. The outer ring wall of the shaft sleeve 8 is provided with a ring groove for installing a limiting part, and the ring surface where the groove bottom of the ring groove is located is coaxial with the outer sleeve 1.
In this embodiment, the limiting member is a snap spring 403, the snap spring 403 is disposed in the ring groove, and the snap spring 403 can rotate around the outer sleeve 1 along the ring groove.
The first end of twist grip 401 still is equipped with along its axial and cup joints the hole, the internal diameter that cup joints the hole is greater than the internal diameter in internal thread hole, cup joint hole and internal thread hole intercommunication, cup joint hole and the coaxial setting in internal thread hole, the messenger cup joints the hole and sets up respectively at the first end and the second end of twist grip 401 with internal thread hole, cup joint the hole and cup joint the second end at axle sleeve 8, the terminal surface accessible bolt and the jump ring 403 fixed connection of the first end of twist grip 401, cup joint the hole and be used for overlapping twist grip 401 on axle sleeve 8, and be convenient for be connected of twist grip 401 and jump ring 403. By using the characteristics of the snap spring 403, the rotating handle 401 and the snap spring 403 are rotated around the bushing 8, but the rotating handle 401 and the snap spring 403 do not move axially compared to the bushing 8.
When using the locating pin to fix a position, the power of rotation handle 401 also receives the influence of the frictional force between jump ring 403 and the annular, consequently, in order to reduce the power degree of using rotation handle 401, promote the smooth degree when the user rotates rotation handle 401, refer to fig. 1, in this embodiment, the tank bottom of annular is equipped with a plurality of recesses, the rotatable ball 7 that is equipped with in the recess, ball 7 contacts with the anchor ring point of jump ring 403, the slip frictional force that makes jump ring 403 receive when rotating becomes the roll frictional force, the frictional force that jump ring 403 received reduces by a wide margin, be favorable to reducing operator's the power condition, make rotation handle 401 smooth, and can not influence the function of spring 6 in the locating pin.
For further stability when promoting jump ring 403 to rotate, a plurality of balls 7 evenly set up along the tank bottom interval of annular, and further, this embodiment includes three ball 7 at least to promote the stability when jump ring 403 rotates to bigger degree. The groove in the ring groove can also be arranged on the groove wall of the ring groove, so that the ball 7 is in point contact with the end face of the snap spring 403.
In this embodiment, referring to fig. 2, the first end of the guiding element 3 is provided with a first mounting groove along the axial direction thereof, the second end of the hook piece is provided with a pin hole, a pin 206 is in clearance fit in the pin hole, and two ends of the pin 206 are respectively fixedly connected with two opposite groove walls of the first mounting groove, so as to realize the hinge connection between the second end of the hook piece and the first end of the guiding element 3. The diameter of the second end of the guide 3 is larger than the diameter of the internally threaded hole, preventing the guide 3 from passing out of the twist grip 401.
Referring to fig. 2, the guide bar hole includes a first hole 204 and a second hole 205 that are communicated with each other, the first hole 204 is close to the first end of the hook piece, the second hole 205 is close to the second end of the hook piece, an included angle is formed between the length direction of the first hole 204 and the length direction of the second hole 205, the included angle is an obtuse angle, the length direction of the first hole 204 is the same as the length direction of the hook piece, and the second hole 205 and the hook portion 202 are located on the same side of the first hole 204.
When the guide shaft 203 is in the first hole 204, the hook piece moves linearly, and when the guide shaft 203 is in the second hole 205, the hook piece has kinetic energy of rotating around the hinge. And when the guide shaft 203 is positioned at one end of the second hole 205 far away from the first hole 204, the projection of the hook part 202 of the hook piece on the cross section of the jacket 1 along the axis of the jacket 1 is positioned in the cross section of the jacket 1, so that the positioning pin can be smoothly inserted into the sheet metal hole.
When the panel beating hole is the waist hole, the direction strip hole can include the first strip hole 204 that sets up along hook piece length direction, and the projection of hook portion 202 this moment along overcoat 1 axis on overcoat 1 cross section can surpass the cross section of overcoat 1, when using, with hook portion 202 by the waist hole after passing, the operator rotates overcoat 1, change hook portion 202 for the position in panel beating hole, can put into the panel beating plate around the hole between hook portion 202 and overcoat 1, and then also can realize the self-locking of locating pin through drive assembly 4.
Referring to fig. 1 and 2, the first end of the outer sleeve 1 is further provided with a split stopper pin 5, the split stopper pin 5 is provided with a guide channel 501 along the length direction thereof, the first end of the hook piece extends from the guide channel 501 to the outside of the first end of the outer sleeve 1, the thickness of the guide channel 501 is equal to or slightly greater than the thickness of the hook piece, and the width of the guide channel 501 is greater than the width of the hook piece, so that the hook piece can move along the radial direction and the axial direction of the outer sleeve 1.
The opening limit pin 5 has relative first end and second end, the second end and the overcoat 1 fixed connection of opening limit pin 5, the first end lateral wall of opening limit pin 5 is equipped with spacing groove 502, spacing groove 502 and guide channel 501 intercommunication, the groove width of spacing groove 502 equals guide channel 501's thickness, and two relative cell walls of spacing groove 502 are located the coplanar with two relative cell walls of guide channel 501 respectively, hook portion 202 can be worn out by spacing groove 502, spacing groove 502 can further carry on spacingly to hook portion 202, make hook piece and hook portion 202 stability stronger in the motion process, the precision is higher.
Because the opening limiting pin 5 is additionally arranged, the end surface area of the first end of the outer sleeve 1 is correspondingly reduced, a circle of boss 503 is arranged in the middle of the outer annular wall of the opening limiting pin 5, when the guide shaft 203 is positioned at one end of the first hole 204 far away from the second strip hole 205, the hook part 202 can be in end surface contact with the boss 503 towards the first end of the opening limiting pin 5, namely when the hook part 202 and the boss 503 act together to clamp a plate at which a metal plate hole is positioned, the area of the hook part 202 and the boss 503 acting on the surrounding plate of the metal plate hole is larger, the clamping stability is stronger, the positioning pin is not easy to displace, and the positioning pins of the embodiment can be used for round holes and long round holes of different sizes on the metal plate, and the adaptability is strong.
The inner ring wall of the opening limiting pin 5 is provided with an avoiding groove 504 to ensure that the hook sheet can smoothly penetrate out in the moving process, correspondingly, the first end of the hook sheet can also be provided with an avoiding part to ensure that the width of the first end of the hook sheet is smaller than that of the second end of the hook sheet, so that the hook sheet can smoothly move in the via hole 101 and the guide channel 501, and the self-locking function is realized.
In the application of the embodiment, the rotating handle 401 is rotated clockwise, the moving screw 402 drives the guide piece 3 to move away from the outer sleeve 1, the second hole 205 is in contact with the guide shaft 203, the hook piece axially rotates around the pin shaft 206, so that the hook portion 202 of the hook piece extends out of the limiting groove 502, then, the first hole 204 is in contact with the guide shaft 203, so that the hook portion 202 of the hook piece approaches to the end face of the boss 503, finally, the hook portion 202 and the boss 503 jointly act to lock the positioning pin on the metal plate, and the locking force can be determined by the number of rotating turns of the rotating handle 401.
Rotating the rotating handle 401 counterclockwise, the moving screw 402 drives the guide piece 3 to move close to the outer sleeve 1, the first hole 204 is in contact with the guide shaft 203, the hook part 202 of the hook piece is gradually far away from the boss 503, the positioning pin is released from the sheet metal hole, then, the second hole 205 is in contact with the guide shaft 203, the hook piece axially rotates around the pin shaft 206, the hook part 202 of the hook piece is reset into the guide channel 501, and the positioning pin is convenient to take out.
It is to be understood that the above examples are merely illustrative for clarity of description and are not limiting on the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the utility model.
Claims (10)
1. A locating pin of a checking fixture is characterized by comprising a jacket, a limiting assembly and a driving assembly;
the outer sleeve is provided with a first end and a second end which are opposite, and a through hole is formed in the outer sleeve along the length direction of the outer sleeve;
the limiting assembly comprises a hook piece and a guide shaft, the hook piece comprises a hook part, an extension rod and a pin shaft, the extension rod is arranged in the through hole, the hook part and the pin shaft are respectively arranged at two ends of the extension rod, and the end part of the hook part extends out of the first end of the outer sleeve; one end of the extension bar, which is close to the hook part, is also provided with a guide bar hole, the guide shaft is in sliding fit with the guide bar hole, and at least one end of the guide shaft is fixedly connected with the inner wall of the via hole;
the driving assembly is arranged at the second end of the outer sleeve and is hinged to the extension rod through the pin shaft, and the driving assembly is used for driving the hook piece to move along the direction of the guide strip hole so that the hook portion is matched with the outer sleeve to lock or release the metal plate hole.
2. The fixture locating pin according to claim 1, wherein the driving assembly comprises a rotary handle and a moving screw, the rotary handle and the moving screw each have a first end and a second end which are opposite to each other, the rotary handle is rotatably arranged at the second end of the outer sleeve, the rotary handle is provided with an internal threaded hole, and the axial direction of the internal threaded hole is the same as that of the through hole; the movement screw is in threaded fit with the internal threaded hole, the first end of the movement screw is connected with the lengthening rod, and the second end of the movement screw penetrates out of the internal threaded hole;
the rotatable locating part that is equipped with on the overcoat, the locating part with the first end fixed connection of twist grip.
3. The fixture locating pin of claim 2, wherein the drive assembly further comprises a guide member having opposite first and second ends, the first end of the guide member being disposed within the aperture, the first end of the guide member being hingedly coupled to the extension bar via the pin shaft, the second end of the guide member being fixedly coupled to the first end of the movement screw;
the second end of the guide piece is further sleeved with a spring, and the spring is arranged between the rotating handle and the first end of the guide piece in a telescopic mode.
4. The fixture locating pin of claim 3, wherein the diameter of the guide first end is greater than the diameter of the guide second end, and the diameter of the spring is less than the diameter of the guide first end.
5. The locating pin of the checking fixture according to claim 4, wherein the locating pin further comprises a bushing sleeved at the second end of the outer sleeve, and an annular groove is formed in the outer annular wall of the bushing;
the limiting piece is a clamp spring which is arranged in the annular groove, and the clamp spring can rotate around the outer sleeve along the annular groove;
the first end of the rotating handle is further provided with a sleeving hole along the axial direction, the sleeving hole and the internal thread hole are respectively formed in the first end and the second end of the rotating handle, the sleeving hole is sleeved at the second end of the shaft sleeve, and the end face of the first end of the rotating handle is fixedly connected with the clamp spring.
6. The fixture positioning pin according to claim 5, wherein a plurality of grooves are formed in the ring groove, and balls are rotatably disposed in the grooves and are in point contact with the surface of the snap spring.
7. The fixture locating pin according to claim 6, wherein the plurality of balls are evenly spaced along the bottom of the groove.
8. The fixture positioning pin according to claim 1, wherein the guide bar hole comprises a first bar hole and a second bar hole which are communicated with each other, the first bar hole is close to the first end of the hook piece, the second bar hole is close to the second end of the hook piece, an included angle is formed between the length direction of the first bar hole and the length direction of the second bar hole, the included angle is an obtuse angle, the length direction of the first bar hole is the same as the length direction of the hook piece, and the second bar hole and the hook portion are located on the same side of the first bar hole.
9. The fixture positioning pin according to claim 1, wherein the first end of the outer sleeve is further provided with a split stopper pin, the split stopper pin is provided with a guide channel along the length direction of the split stopper pin, and the first end of the hook piece extends from the guide channel to the outside of the first end of the outer sleeve;
the opening limiting pin is provided with a first end and a second end which are opposite, the second end of the opening limiting pin is fixedly connected with the outer sleeve, a limiting groove is formed in the side wall of the first end of the opening limiting pin, the limiting groove is communicated with the guide channel, and the hook portion can be penetrated out of the limiting groove.
10. The fixture positioning pin according to claim 9, wherein a ring of boss is provided at a middle portion of an outer circumferential wall of the cotter pin, and the hook portion is contactable with an end surface of the boss facing the first end of the cotter pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121445335.6U CN215861190U (en) | 2021-06-28 | 2021-06-28 | Positioning pin of checking fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121445335.6U CN215861190U (en) | 2021-06-28 | 2021-06-28 | Positioning pin of checking fixture |
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| Publication Number | Publication Date |
|---|---|
| CN215861190U true CN215861190U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121445335.6U Active CN215861190U (en) | 2021-06-28 | 2021-06-28 | Positioning pin of checking fixture |
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| CN (1) | CN215861190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116531148A (en) * | 2023-07-05 | 2023-08-04 | 科瑞迈吉(北京)医疗科技有限公司 | A lockwire system for valve repair operation |
-
2021
- 2021-06-28 CN CN202121445335.6U patent/CN215861190U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116531148A (en) * | 2023-07-05 | 2023-08-04 | 科瑞迈吉(北京)医疗科技有限公司 | A lockwire system for valve repair operation |
| CN116531148B (en) * | 2023-07-05 | 2023-10-20 | 科瑞迈吉(北京)医疗科技有限公司 | A lockwire system for valve repair operation |
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