CN110842856A - Tool for installing positioning pin on main bearing seat of cylinder body - Google Patents
Tool for installing positioning pin on main bearing seat of cylinder body Download PDFInfo
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- CN110842856A CN110842856A CN201911351097.XA CN201911351097A CN110842856A CN 110842856 A CN110842856 A CN 110842856A CN 201911351097 A CN201911351097 A CN 201911351097A CN 110842856 A CN110842856 A CN 110842856A
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- 238000009434 installation Methods 0.000 claims abstract description 50
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- Insertion Pins And Rivets (AREA)
Abstract
The invention discloses a tool for installing a positioning pin on a main bearing seat of a cylinder body, which comprises a long rod-shaped tool body, wherein the upper end of the tool body is a spherical crown-shaped shaft head part, the lower end of the tool body is connected with an installation sleeve, the bottom of the installation sleeve is provided with an installation hole for inserting the positioning pin and in clearance fit with the positioning pin, and the installation sleeve is also provided with a clamping device for clamping the upper part of the positioning pin in the installation hole. Because the tool body has a certain length, an operator can install the positioning pin into the positioning pin hole without bending down, and the labor intensity of the worker is reduced; the clamping device on the mounting sleeve replaces fingers to clamp and fix the positioning pin, the middle part of the tool body is held by an operator, the hammer head is far away from a workpiece and a handheld part during hammering, the accident that the hand is injured by smashing is avoided, the surface structure of the main bearing seat can be prevented from being damaged, and in addition, after the clamping device is properly modified, the clamping device is suitable for assembling operation of other positioning pins with different sizes or narrow and small positions.
Description
Technical Field
The invention relates to the technical field of pin shaft installation, in particular to a tool for installing a positioning pin on a main bearing seat of a cylinder body.
Background
Before a crankshaft hole is machined in a cylinder body of a diesel engine, a plurality of main bearing covers need to be assembled at a plurality of main bearing seat positions of the cylinder body respectively, and the main bearing seats and the main bearing covers need to be repeatedly disassembled and assembled due to the reasons of machining, assembling, maintenance and the like. In order to ensure the repeated assembly precision, 2 positioning pins are arranged between each pair of main bearing covers and main bearing seats to limit the position degree of the main bearing covers and the main bearing seats.
The assembly process of the cylinder body positioning pin is as follows: an operator grasps the positioning pin with one hand and aligns one end of the positioning pin with the pin hole in the position of the main bearing seat, and grasps the hammer with the other hand to knock the positioning pin into the hole. In the process, because the positioning pin is small, when the positioning pin is held by hand to knock, fingers are easy to be injured or the main bearing seat mounting surface is easy to be hit, so that safety accidents or quality accidents are caused; and meanwhile, the pin hole of the main bearing seat is arranged in the skirt edge of the cylinder body, so that the bending amplitude is large during tool assembling operation, and the labor intensity is high during frequent operation.
Therefore, how to solve the problems of inconvenient installation and potential safety hazard in the installation process of the cylinder positioning pin is a problem to be solved urgently by technical personnel in the field at present.
Disclosure of Invention
In view of this, the present invention provides a tool for installing a positioning pin on a main bearing seat of a cylinder, which can significantly improve the safety and convenience of installing the positioning pin on the main bearing seat of the cylinder and reduce the labor intensity of an installer.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a frock for installing locating pin on cylinder body main bearing seat, includes long rod-shaped frock body, the upper end of frock body is for being the axle head portion of spherical crown shape, the lower extreme of frock body is connected with the installation cover, the bottom of installation cover be equipped with be used for cartridge locating pin and with locating pin clearance fit's mounting hole, still be equipped with on the installation cover be used for with the upper portion chucking of locating pin in the chucking device of mounting hole.
Preferably, the mounting hole is a first through hole which vertically penetrates through the mounting sleeve, a convex column which is inserted into the first through hole from the upper part of the mounting sleeve is arranged at the lower end of the tool body, a second through hole which transversely penetrates through the mounting sleeve and is orthogonal to the first through hole is arranged at the upper part of the mounting sleeve, a third through hole which is opposite to the second through hole and has the same diameter is arranged on the convex column, and the tool body and the mounting sleeve are fixedly connected through a connecting shaft pin which is inserted into the second through hole and the third through hole.
Preferably, the mounting sleeve is provided with a clamp spring groove on the outer side of the joint pin, and a clamp spring for preventing the joint pin from falling off is mounted in the clamp spring groove.
Preferably, the length of the protruding column is equal to one half of the length of the first through hole.
Preferably, the tool body is a steel part, and the copper alloy mounting sleeve of the mounting sleeve is arranged.
Preferably, the cross section of the tool body is circular, and the diameter of the shaft head is larger than that of the tool body.
Preferably, the installation sleeve is a cylindrical installation sleeve, and the diameter of the installation sleeve is larger than that of the tool body.
Preferably, the tool body, the mounting sleeve and the axis of the mounting hole coincide.
Preferably, the length of the tool body is 100-200 mm.
Preferably, the clamping device comprises a T-shaped ball stud with a hemispherical head, a screw and a spring arranged between the ball stud and the screw, stepped holes communicated with the mounting hole and matched with the ball stud are formed in the two sides of the mounting hole in the mounting sleeve, the ball stud is inserted into the inner end of the stepped hole, internal threads matched with the screw are formed in the outer end of the stepped hole, and the screw is screwed in the internal threads and pressed on the ball stud through the spring so that the hemispherical head of the ball stud extends out of the mounting hole.
When the positioning pin needs to be installed in the positioning pin hole in the main bearing seat, the upper end of the positioning pin can be inserted into the mounting hole in the bottom of the mounting sleeve, which is in clearance fit with the positioning pin, the positioning pin is fixed in the mounting hole through the clamping device, so that the positioning pin is prevented from falling off, the lower end of the positioning pin is exposed out of the mounting sleeve, the tool body is held by one hand, the lower end of the positioning pin is aligned with the positioning pin hole in the main bearing seat, the hammer is held by the other hand, the head of the shaft is aligned and knocked, the positioning pin is driven into the positioning pin hole, the mounting sleeve is pulled out of the positioning pin, the positioning pin is still left in the positioning pin hole of the main bearing seat due to interference fit, and then the assembly of other positioning pins is completed in the same way.
The length of the tool body can be selected according to the height of the assembly surface, so that an operator can install the positioning pin into the positioning pin hole without bending down, and the labor intensity of the worker is reduced; the positioning pin is clamped and fixed by the clamping device on the mounting sleeve instead of fingers, and an operator holds the middle part of the tool body in a hand mode, so that the hammer head is far away from a workpiece and a holding part during hammering, the accident that the hand is injured by smashing is avoided, and the surface structure of the main bearing seat can be prevented from being damaged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of an embodiment of a tooling for installing a locating pin on a main bearing block of a cylinder block according to the present invention;
FIG. 2 is a schematic view of the internal structure of the mounting sleeve;
FIG. 3 is a schematic view of a locating pin inserted into a mounting hole;
FIG. 4 is a schematic view of a locating pin aligned with a locating pin hole;
FIG. 5 is a schematic view of a locating pin installed in a locating pin hole;
fig. 6 is a schematic view showing the completion of the installation of the positioning pin.
The tool comprises a tool body 1, a tool post 11, a shaft head 2, a mounting sleeve 3, a clamp spring groove 31, a clamp spring 32, a clamp spring 33, a second through hole 34, a first through hole, a mounting hole 4, a clamping device 5, a ball head pin 51, a spring 52, a screw 53, a connecting shaft pin 6, a positioning pin 7, a main bearing seat 8 and a positioning pin hole 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide a tool for installing a positioning pin on a main bearing seat of a cylinder body, which can obviously improve the safety and convenience of installing the positioning pin on the main bearing seat of the cylinder body and reduce the labor intensity of installation workers.
Referring to fig. 1 to 6, fig. 1 is a schematic view illustrating an embodiment of a tool for mounting a positioning pin on a main bearing seat of a cylinder block according to the present invention; FIG. 2 is a schematic view of the internal structure of the mounting sleeve; FIG. 3 is a schematic view of a locating pin inserted into a mounting hole; FIG. 4 is a schematic view of a locating pin aligned with a locating pin hole; FIG. 5 is a schematic view of a locating pin installed in a locating pin hole; fig. 6 is a schematic view showing the completion of the installation of the positioning pin.
The tool for installing the positioning pin on the main bearing seat of the cylinder body comprises a long rod-shaped tool body 1, the upper end of the tool body 1 is a spherical crown-shaped shaft head part 2, the lower end of the tool body 1 is connected with an installation sleeve 3, the bottom of the installation sleeve 3 is provided with an installation hole 4 which is used for inserting the positioning pin 7 and is in clearance fit with the positioning pin 7, and the installation sleeve 3 is further provided with a clamping device 5 which is used for clamping the upper part of the positioning pin 7 in the installation hole 4.
Wherein, frock body 1 can be cylindrical shaft-like structure, and the upper end of frock body 1 is for being the head of taking out of spherical crown shape to strike frock body 1 to using the hammer, specifically, what the axle head 2 was hemisphere axle head 2, the lower extreme of frock body 1 is connected with installation cover 3, and installation cover 3 also can be cylindrical structure, and is specific, and the diameter of installation cover 3 can be greater than the diameter of frock body 1, and of course, installation cover 3 also can be structure as an organic whole for frock body 1.
The bottom of installing sleeve 3 is equipped with mounting hole 4, mounting hole 4 is used for cartridge locating pin 7, locating pin 7 and 4 clearance fit of mounting hole, still be equipped with chucking device 5 on the installing sleeve 3, chucking device 5 is used for the locating pin 7 chucking of cartridge in mounting hole 4, so that when 7 cartridges of locating pin are in mounting hole 4, accessible chucking device 5 fixes 7 chucking of locating pin in mounting hole 4, prevent that locating pin 7 from the roll-off under the effect of gravity, specifically, mounting hole 4, the axle center coincidence of installing sleeve 3 and frock body 1, so that when knocking frock body 1's axle head portion 2 with the hammer, guarantee that locating pin 7 receives main shaft along its axial pressure, and then guarantee that locating pin 7 squeezes into locating pin hole 9 along the axial of locating pin hole 9 on spindle bearing 8, avoid bearing 8 to receive lateral impact force and destroy its structure. The mounting hole 4 is a hole with a slight clearance processed according to the outer diameter and length of the positioning pin 7.
It should be noted that the depth of the mounting hole 4 should be determined by the length of the positioning pin 7 and the length of the positioning pin hole 9, and specifically, when the upper end of the positioning pin 7 is inserted into the bottom end of the mounting hole 4, the length of the positioning pin 7 exposed out of the mounting hole 4 should be no less than the length of the positioning pin 7 that needs to be inserted into the positioning pin hole 9.
When the tool for installing the positioning pin on the main bearing seat of the cylinder body provided by the invention is used and the positioning pin 7 needs to be installed in the positioning pin hole 9 on the main bearing seat 8, the upper end of the positioning pin 7 can be inserted into the mounting hole 4 which is arranged at the bottom of the mounting sleeve 3 and is in clearance fit with the positioning pin 7, the positioning pin 7 is fixed in the mounting hole 4 through the clamping device 5 to prevent the positioning pin 7 from falling off, the lower end of the positioning pin 7 is exposed out of the mounting sleeve 3, then one hand holds the tool body 1 and aligns the lower end of the positioning pin 7 with the positioning pin hole 9 on the main bearing seat 8, the other hand holds the hammer and aligns the head part 2 to strike so as to drive the positioning pin 7 into the positioning pin hole 9, and then pulling out the mounting sleeve 3 from the positioning pin 7, remaining the positioning pin 7 on the positioning pin hole 9 of the main bearing seat 8 due to interference fit, and then completing the assembly of other positioning pins 7 in the same way.
Because the tool body 1 has a certain length, the length of the tool body can be selected according to the height of the assembling surface, and an operator can install the positioning pin 7 into the positioning pin hole 9 without bending down, so that the labor intensity of the worker is reduced; the fixing positioning pin 7 is clamped by the clamping device 5 on the mounting sleeve 3 instead of fingers, and an operator holds the middle part of the tool body 1 in a hand mode, so that a hammer head is far away from a workpiece and a hand-held part during hammering, the accident that a hand is injured by smashing is avoided, and the surface structure of the main bearing seat 8 can be prevented from being damaged.
On the basis of the above embodiment, in consideration of the specific connection mode between the installation sleeve 3 and the tool body 1, as an optimal choice, the installation hole 4 is a first through hole 34 that vertically penetrates through the installation sleeve 3, the lower end of the tool body 1 is provided with a convex column 11 that is inserted into the first through hole 34 from the upper side of the installation sleeve 3, the upper portion of the installation sleeve 3 is provided with a second through hole 33 that transversely penetrates through the installation sleeve 3 and is orthogonal to the first through hole 34, the convex column 11 is provided with a third through hole that is opposite to the second through hole 33 and has the same diameter, and the tool body 1 and the installation sleeve 3 are fixedly connected through a joint pin 6 that is inserted into the second through hole 33 and the third through hole.
In this embodiment, the mounting hole 4 is a first through hole 34 through which the mounting sleeve 3 passes up and down, the lower end of the tool body 1 is provided with a boss 11 matched with the first through hole 34, so that the boss 11 is inserted into the through hole from above the first through hole 34, the upper portion of the mounting sleeve 3 is further provided with a second through hole 33 orthogonal to the first through hole 34 and passing through the mounting sleeve 3 from left to right, the boss 11 is provided with a third through hole having the same diameter as and facing the second through hole 33, so that the mounting sleeve 3 and the tool body 1 are fixed together by a joint pin 6 inserted into the first through hole 34 and the second through hole 33, and a positioning pin 7 inserted into the first through hole 34 from the bottom of the first through hole 34 can be inserted to abut against the boss 11, so that the tool body 1 directly applies pressure to the positioning pin 7, thereby preventing the positioning sleeve from deforming under long-term impact force and causing deformation of the mounting hole 4, and improving the service life of the mounting sleeve, in addition, the mounting sleeve 3 with the mounting holes 4 with different apertures can be replaced by the dismounting connecting shaft pin 6 so as to meet different requirements.
In addition to the above embodiments, it is preferable that the mounting sleeve 3 is provided with a clamp spring groove 31 on the outer side of the coupling pin 6, and a clamp spring 32 for preventing the coupling pin 6 from falling off is installed in the clamp spring groove 31. So as to prevent the shaft coupling pin 6 from slipping off in the using process and ensure the reliability of the connection of the installation sleeve 3 and the tool body 1.
In addition to the above-described embodiments, in consideration of the fact that only one half of the positioning pin 7 is generally driven into the positioning pin hole 9, in order to further improve the convenience of use of the present invention, it is preferable that the length of the stud 11 is equal to one half of the length of the first through hole 34. Specifically, the length of the first through hole 34 may be equal to the length of the positioning pin 7, that is, the height of the mounting sleeve 3 is equal to the height of the positioning pin 7, so that one half of the positioning pin 7 is inserted into the lower portion of the first through hole 34, and one half of the positioning pin 7 is exposed out of the lower end of the mounting sleeve 3, when the positioning pin 7 is mounted, the shaft head portion 2 may be hammered by holding a hammer by hand until the bottom end face of the mounting sleeve 3 contacts with the end face of the main bearing seat 8, and the positioning pin 7 can be ensured to be press-fitted in place.
In addition to the above-described embodiments, in order to prevent the end surface structure of main bearing housing 8 from being damaged when mounting sleeve 3 comes into contact with the end surface of main bearing housing 8, it is preferable that the copper alloy mounting sleeve of mounting sleeve 3 be used. The material quality of copper alloy is softer than main bearing seat 8 of cast iron material, can avoid installing cover 3 to damage main bearing seat 8's terminal surface structure under the impact force.
On the basis of the above embodiment, it is preferable that the tool body 1 has a circular cross section, and the diameter of the spindle head 2 is larger than that of the tool body 1. So as to strike the spindle nose, further reduce the risk of accidental injury operation workman, consider the setting of the specific length of frock body 1, preferably, frock body 1's length is 100 and supplyes 200 mm. Of course, the length of the tool body 1 can be set to other sizes according to needs, but it should be noted that the length of the tool body 1 is not too long, and the tool body is not easy to be operated by hands.
In addition to any of the above embodiments, in consideration of the specific arrangement of the chucking device 5, as a preferable mode, the chucking device 5 includes a T-shaped ball stud 51 with a hemispherical head, a screw 53 and a spring 52 arranged between the ball stud 51 and the screw 53, the mounting sleeve 3 is provided with stepped holes on both sides of the mounting hole 4, the stepped holes are communicated with the mounting hole 4 and are matched with the ball stud 51, the ball stud 51 is inserted into the inner end of the stepped hole, the outer end of the stepped hole is provided with an internal thread matched with the screw 53, the screw 53 is screwed into the internal thread and is pressed against the ball stud 51 through the spring 52, so that the hemispherical head of the ball stud 51 extends into the mounting hole 4.
In this embodiment, the mounting sleeve 3 is provided with stepped holes with small inner portions and large outer portions at two sides of the mounting hole 4, the stepped holes are installed in cooperation with the T-shaped ball stud 51, the T-shaped ball stud 51 is inserted into the stepped holes in a matching manner, the screws 53 are arranged at the outer ends of the stepped holes in a matching manner, the springs 52 are arranged between the ball stud 51 and the screws 53, the positioning pin 7 is clamped by the ball stud 51 by the aid of elasticity of the springs 52, and the ball center head of the ball stud 51 automatically extends out of the mounting hole 4 after the positioning pin 7 leaves the mounting hole 4 of the positioning pin 7.
Because the head of bulb round pin 51 that stretches into in the mounting hole 4 is half spherical structure, consequently, inserting locating pin 7 in the in-process of mounting hole 4, the guide part of locating pin 7 up end and the bulb of bulb round pin 51 produce the extrusion, and the spring 52 of bulb atress postcompression afterbody moves back for locating pin 7 inserts the bottom of mounting hole 4, and the excircle of locating pin 7 is withstood to the bulb of bulb round pin 51 simultaneously, makes locating pin 7 can not drop at the in-process of frock upset. And the amount of the clamping force of the ball stud 51 on the positioning pin 7 placed in the mounting hole 4 can be controlled by adjusting the compression amount of the spring 52 by screwing the screw 53.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The tool for installing the positioning pin on the main bearing seat of the cylinder body provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a frock for installing locating pin on cylinder body main bearing seat, its characterized in that, includes long rod-shaped frock body (1), the upper end of frock body (1) is for being axle head portion (2) of spherical crown shape, the lower extreme of frock body (1) is connected with installation cover (3), the bottom of installation cover (3) is equipped with be used for cartridge locating pin (7) and with locating pin (7) clearance fit's mounting hole (4), still be equipped with on installation cover (3) be used for with the upper portion chucking of locating pin (7) in chucking device (5) of mounting hole (4).
2. The tool for installing the positioning pin on the main bearing seat of the cylinder body as claimed in claim 1, wherein the installation hole (4) is a first through hole (34) which vertically penetrates through the installation sleeve (3), the lower end of the tool body (1) is provided with a convex column (11) which is inserted into the first through hole (34) from the upper part of the installation sleeve (3), the upper part of the installation sleeve (3) is provided with a second through hole (33) which transversely penetrates through the installation sleeve (3) and is orthogonal to the first through hole (34), the convex column (11) is provided with a third through hole which is opposite to the second through hole (33) and has the same diameter, and the tool body (1) and the installation sleeve (3) are fixedly connected through a joint pin (6) which is inserted into the second through hole (33) and the third through hole.
3. The tool for installing the positioning pin on the main bearing seat of the cylinder body as claimed in claim 2, wherein the installation sleeve (3) is provided with a clamp spring groove (31) at the outer side of the joint pin (6), and a clamp spring (32) for preventing the joint pin (6) from falling off is installed in the clamp spring groove (31).
4. A tooling for mounting dowel pins on main bearing blocks of cylinder blocks, according to claim 3, characterized in that the length of the stud (11) is equal to half the length of the first through hole (34).
5. The tooling for installing the positioning pin on the main bearing seat of the cylinder body according to claim 4, wherein the tooling body (1) is a steel piece, and the copper alloy of the installation sleeve (3) is used as the installation sleeve.
6. The tool for installing the positioning pin on the main bearing seat of the cylinder body as claimed in claim 1, wherein the cross section of the tool body (1) is circular, and the diameter of the head portion (2) is larger than that of the tool body (1).
7. The tooling for installing the positioning pin on the main bearing seat of the cylinder body as claimed in claim 6, wherein the installation sleeve (3) is a cylindrical installation sleeve, and the diameter of the installation sleeve (3) is larger than that of the tooling body (1).
8. The tooling for installing the positioning pin on the main bearing seat of the cylinder body according to claim 7, wherein the axes of the tooling body (1), the installation sleeve (3) and the installation hole (4) are coincident.
9. The tooling for installing the positioning pin on the main bearing seat of the cylinder body as claimed in claim 8, wherein the length of the tooling body (1) is 100-200 mm.
10. The tooling for installing the locating pin on the main bearing block of the cylinder block according to any one of claims 1 to 9, it is characterized in that the clamping device (5) comprises a T-shaped ball pin (51) with a hemispherical head, a screw (53) and a spring (52) arranged between the ball pin (51) and the screw (53), stepped holes which are communicated with the mounting holes (4) and matched with the ball stud (51) are arranged on the two sides of the mounting hole (4) of the mounting sleeve (3), the ball head pin (51) is inserted into the inner end of the stepped hole, the outer end of the stepped hole is provided with an internal thread matched with the screw (53), the screw (53) is screwed in the internal thread and is pressed on the ball stud (51) through a spring (52), so that the hemispherical head of the ball stud (51) protrudes into the mounting hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911351097.XA CN110842856A (en) | 2019-12-24 | 2019-12-24 | Tool for installing positioning pin on main bearing seat of cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911351097.XA CN110842856A (en) | 2019-12-24 | 2019-12-24 | Tool for installing positioning pin on main bearing seat of cylinder body |
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| CN110842856A true CN110842856A (en) | 2020-02-28 |
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|---|---|---|---|
| CN201911351097.XA Pending CN110842856A (en) | 2019-12-24 | 2019-12-24 | Tool for installing positioning pin on main bearing seat of cylinder body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112548938A (en) * | 2020-12-07 | 2021-03-26 | 苏州博宇科技有限公司 | Screw drawing gun |
| CN115156905A (en) * | 2022-07-22 | 2022-10-11 | 清远敏惠汽车零部件有限公司 | Automobile exterior trim buckle and stud mounting equipment and method |
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