CN213689176U - Tension-torsion combined clamp applied to bone screw performance tester - Google Patents
Tension-torsion combined clamp applied to bone screw performance tester Download PDFInfo
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- CN213689176U CN213689176U CN202022546522.5U CN202022546522U CN213689176U CN 213689176 U CN213689176 U CN 213689176U CN 202022546522 U CN202022546522 U CN 202022546522U CN 213689176 U CN213689176 U CN 213689176U
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- bone screw
- tension
- pressure sensor
- performance tester
- anchor clamps
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Abstract
The utility model belongs to the technical field of testers, in particular to a tension-torsion combined clamp applied to a bone screw performance tester, which comprises a clamp body and a signal acquisition device, wherein the signal acquisition device is arranged at the bottom of the clamp body; the anchor clamps body includes fixing base and two regulation anchor clamps, two regulation anchor clamps bilateral symmetry set up on the fixing base, just two regulation anchor clamps homoenergetic for the fixing base motion is used for cliping the space of sample between in order to adjust two regulation anchor clamps. Anchor clamps mainly used to different test environment, the lower sample of the different specification styles of centre gripping, the anchor clamps body can realize centre gripping, the fastening to sample down, can adjust well about going on according to sample condition size under moreover, improve the utilization ratio of sample down, also can improve the efficiency of test simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the tester, especially, relate to a be applied to bone screw capability test appearance draw and turn round modular fixture, the lower sample of the different specification styles of mainly used centre gripping.
Background
The bone screw belongs to the orthopedic implant and is widely applied to the clinical treatment of dislocation, fracture and other diseases. The quality of the bone screws determines the ease of operation for the surgeon and the safety of the patient's use. The bone screw performance tester is mainly applied to the detection of self-tapping performance, torsion performance, driving torque, pull-out performance and other performances of the bone screw in orthopedics department, and the self-tapping performance, the torsion performance, the driving torque and other tests of the bone screw require the synchronous output and control of torque and pressure signals.
However, the clamp of the bone screw performance tester in the prior art cannot be flexibly adjusted according to the condition size of the lower sample, and the utilization rate and the testing efficiency of the lower sample are low. Moreover, the bone screw performance tester clamp in the prior art is expensive, unacceptable to instrument manufacturers and users, inconvenient to maintain and brings inconvenience to the instrument manufacturers and users. In addition, the traditional clamp cannot be used for combining range sensors with different precisions according to different practical environments, has certain limitation in use, and cannot better meet the variable requirements of the detection industry.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be applied to draw of bone screw capability test appearance and turn round modular fixture, anchor clamps are mainly to the integrated test fixture of a section of bone screw self tapping performance, torsional properties and drive torque test, mainly used is to different test environment, the lower sample of the different specification styles of centre gripping.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a pull-twist combined clamp applied to a bone screw performance tester comprises a clamp body and a signal acquisition device, wherein the signal acquisition device is arranged at the bottom of the clamp body; the anchor clamps body includes fixing base and two regulation anchor clamps, two regulation anchor clamps bilateral symmetry set up on the fixing base, just two regulation anchor clamps homoenergetic for reciprocating motion about the fixing base to adjust the space that is used for cliping the sample between two regulation anchor clamps.
When bone screw capability test appearance tested, the sample included sample and lower sample two parts, goes up the sample and is the screw, generally adopts the anchor clamps centre gripping, lower sample is for detecting the sample, generally adopts down the anchor clamps centre gripping, and anchor clamps be anchor clamps down, mainly to the centre gripping and the mechanics detection of sample down. Draw and turn round modular fixture include signal acquisition part and sample clamping part, with reasonable combination in the same place between them, can realize the synchronous output of moment of torsion and mechanics.
Preferably, the adjusting clamp comprises a clamping seat and an adjusting device for adjusting the left and right movement of the clamping seat.
Preferably, the adjusting device comprises a rotating bearing, a rotating threaded rod and an adjusting knob, the rotating threaded rod penetrates through the rotating bearing, the rotating threaded rod is rotatably connected with the rotating bearing, one end of the rotating threaded rod is fixedly connected with the adjusting knob, the other end of the rotating threaded rod is fixedly connected with the clamping seat, and the adjusting knob can drive the rotating threaded rod to rotate along the rotating bearing so as to drive the clamping seat to move left and right.
Preferably, the rotary bearing is fixed on the fixed seat through a bearing fixing plate so as to limit the axial movement of the bearing.
Preferably, the clamping seat is provided with a threaded hole and is connected with the rotary threaded rod through the threaded hole, so that different clamping seats can be flexibly replaced according to the condition and size of a sample, and the use is more flexible and changeable.
And guide holes with key grooves are processed at two ends of the fixed seat.
Preferably, the signal acquisition device comprises a fixed base plate, a torque sensor and a pressure sensor, the pressure sensor is arranged on the fixed base plate, the torque sensor is arranged above the pressure sensor, and the torque sensor is connected to the bottom of the fixed base through a bolt.
Preferably, the torque sensor and the pressure sensor are connected through an upper connecting plate, the torque sensor, the pressure sensor and the upper connecting plate are connected through bolts, the bolts are convenient to detach, and the combination of the range sensors with different precisions can be carried out according to different practical environments.
Preferably, the pressure sensor is connected with the fixed bottom plate through the lower connecting plate, the pressure sensor is connected with the fixed bottom plate and the upper connecting plate through the bolts, the bolts are convenient to detach, and the combination of the range sensors with different precisions can be carried out according to different practical environments.
Preferably, a protective cover is further arranged on the fixed bottom plate, the torsion sensor is arranged in the protective cover, the bottom of the pressure sensor is located in the protective cover, and the upper portion of the pressure sensor protrudes out of the top of the protective cover and is connected with the fixed seat. The protection casing plays certain guard action to the sensor, prevents that external factor from playing the interference to the test of sensor, guarantees the test accuracy.
Advantageous effects
The utility model discloses a tension-torsion combined clamp applied to a bone screw performance tester, which can realize the actions of clamping and fastening a lower sample and freely adjusting left and right; the clamp body can be adjusted in a left-right alignment mode according to the condition size of a lower sample, so that the utilization rate of the lower sample is improved, and meanwhile, the testing efficiency can also be improved; the clamp body adopts a thread positioning driving mode, namely, the thread only performs rotary motion, and the clamping seat moves from two sides to the center under the driving of the thread, so that the clamping and fastening of a lower sample are realized; the adjusting knobs on the two sides of the clamp body can rotate clockwise and anticlockwise, and the clamping seat can move left and right through rotation.
Draw and turn round modular fixture cost lower, operation and maintenance are simple and easy. Moreover, the combined tension-torsion clamp can be used for combining range sensors with different precisions according to different practical environments, the application range of the combined tension-torsion clamp is more diverse and universal, and the variable requirements of the detection industry can be better met.
Drawings
FIG. 1 is a schematic front view of a tension-torsion combination clamp applied to a bone screw performance tester according to embodiment 1 of the present patent;
FIG. 2 is a schematic view of the internal structure of the tension-torsion combined clamp applied to the bone screw performance tester in example 1 of this patent;
FIG. 3 is a schematic top view of the tension-torsion combination clamp applied to the bone screw performance tester in example 1 of this patent;
FIG. 4 is a schematic perspective view of a tension-torsion combination clamp applied to a bone screw performance tester according to embodiment 1 of the present patent;
in the figure, 1: a clamp body; 2: a signal acquisition device; 3: a fixed seat; 4: a clamping seat; 5: a rotating bearing; 6: rotating the threaded rod; 7: adjusting a knob; 8: a bearing fixing plate; 9: fixing the bottom plate; 10: a torque sensor; 11: a pressure sensor; 12: a bolt; 13: an upper connecting plate; 14: a lower connecting plate; 15: a shield.
Detailed Description
Hereinafter, the present invention will be described in detail. Before the description is made, it should be understood that the terms used in the present specification and the appended claims should not be construed as limited to general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that the inventor is allowed to define terms appropriately for the best explanation. Accordingly, the description proposed herein is just a preferable example for the purpose of illustrations only, not intended to limit the scope of the invention, so it should be understood that other equivalents and modifications could be made thereto without departing from the spirit and scope of the invention.
The following examples are given by way of illustration of embodiments of the invention and are not intended to limit the invention, and those skilled in the art will appreciate that modifications within the scope of the invention do not depart from the spirit and scope of the invention.
Example 1
As shown in fig. 1-4, a tension-torsion combined clamp applied to a bone screw performance tester comprises a clamp body 1 and a signal acquisition device 2, wherein the signal acquisition device is arranged at the bottom of the clamp body; the anchor clamps body includes fixing base 3 and two regulation anchor clamps, two regulation anchor clamps bilateral symmetry set up on the fixing base, just two regulation anchor clamps homoenergetic for reciprocating motion about the fixing base to adjust the space that is used for cliping the sample between two regulation anchor clamps. The adjusting clamp comprises a clamping seat 4 and an adjusting device for adjusting the left and right movement of the clamping seat. Adjusting device includes rolling bearing 5, rotation threaded rod 6 and adjust knob 7, the rotation threaded rod passes rolling bearing, just rotate between rotation threaded rod and the rolling bearing and be connected, the one end and the adjust knob fixed connection of rotation threaded rod, the other end and the tight seat fixed connection of clamp of rotation threaded rod, through rotating adjust knob can drive the rotation threaded rod rotates along rolling bearing to the drive is pressed from both sides and is controlled and remove. The rotating bearing is fixed on the fixed seat through a bearing fixing plate 8 so as to limit the axial movement of the bearing. The clamping seat is provided with a threaded hole and is connected with the rotary threaded rod through the threaded hole, different clamping seats can be flexibly replaced according to the condition and the size of a sample, and the use is more flexible and changeable. And guide holes with key grooves are processed at two ends of the fixed seat.
Anchor clamps for lower anchor clamps, mainly to the centre gripping and the mechanics detection of sample down. Draw and turn round modular fixture include signal acquisition part and sample clamping part, with reasonable combination in the same place between them, can realize the synchronous output of moment of torsion and mechanics. The clamp body of the utility model can realize the actions of clamping and fastening the lower sample and freely adjusting left and right; the clamp body can be adjusted in a left-right alignment mode according to the condition size of a lower sample, so that the utilization rate of the lower sample is improved, and meanwhile, the testing efficiency can also be improved; the clamp body adopts a thread positioning driving mode, namely, the thread only performs rotary motion, and the clamping seat moves from two sides to the center under the driving of the thread, so that the clamping and fastening of a lower sample are realized; the adjusting knobs on the two sides of the clamp body can rotate clockwise and anticlockwise, and the clamping seat can move left and right through rotation.
The signal acquisition device comprises a fixed base plate 9, a torque sensor 10 and a pressure sensor 11, wherein the pressure sensor is arranged on the fixed base plate, the torque sensor is arranged above the pressure sensor, and the torque sensor is connected to the bottom of the fixed base through a bolt 12.
The torque sensor and the pressure sensor are connected through the upper connecting plate 13, the torque sensor, the pressure sensor and the upper connecting plate are connected through bolts, the bolts are convenient to detach, and combination of range sensors with different precisions can be carried out according to different practical environments.
The pressure sensor is connected with the fixed bottom plate through the lower connecting plate 14, the pressure sensor is connected with the fixed bottom plate and the upper connecting plate through the bolts, the bolts are convenient to detach, and the combination of range sensors with different precisions can be carried out according to different practical environments.
The fixed base plate is further provided with a protective cover 15, the torque sensor is arranged in the protective cover, the bottom of the pressure sensor is located in the protective cover, and the upper portion of the pressure sensor protrudes out of the top of the protective cover and is connected with the fixed seat. The protection casing plays certain guard action to the sensor, prevents that external factor from playing the interference to the test of sensor, guarantees the test accuracy.
Draw and turn round modular fixture cost lower, operation and maintenance are simple and easy. Moreover, the combined tension-torsion clamp can be used for combining range sensors with different precisions according to different practical environments, the application range of the combined tension-torsion clamp is more diverse and universal, and the variable requirements of the detection industry can be better met.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.
Claims (10)
1. The utility model provides a be applied to pull and turn round modular fixture of bone screw capability test appearance which characterized in that: the clamp comprises a clamp body and a signal acquisition device, wherein the signal acquisition device is arranged at the bottom of the clamp body; the fixture body comprises a fixing seat and two adjusting fixtures, the two adjusting fixtures are arranged on the fixing seat in a bilateral symmetry mode, and the two adjusting fixtures can move leftwards and rightwards in a reciprocating mode relative to the fixing seat.
2. The tension-torsion combined clamp applied to the bone screw performance tester of claim 1, wherein: the adjusting clamp comprises a clamping seat and an adjusting device for adjusting the clamping seat to move left and right.
3. The tension-torsion combined clamp applied to the bone screw performance tester of claim 2, wherein: adjusting device includes rolling bearing, rotation threaded rod and adjust knob, the rotation threaded rod passes rolling bearing, just rotate between threaded rod and the rolling bearing and rotate and be connected, the one end and the adjust knob fixed connection of rotation threaded rod, the other end and the tight seat fixed connection of clamp of rotation threaded rod.
4. The tension-torsion combined clamp applied to the bone screw performance tester is characterized in that: the rotating bearing is fixed on the fixed seat through the bearing fixing plate.
5. The tension-torsion combined clamp applied to the bone screw performance tester is characterized in that: the clamping seat is provided with a threaded hole and is connected with the rotating threaded rod through the threaded hole.
6. The tension-torsion combined clamp applied to the bone screw performance tester is characterized in that: and guide holes with key grooves are processed at two ends of the fixed seat.
7. The tension-torsion combined clamp applied to the bone screw performance tester of claim 1, wherein: the signal acquisition device comprises a fixed base plate, a torque sensor and a pressure sensor, wherein the pressure sensor is arranged on the fixed base plate, the torque sensor is arranged above the pressure sensor, and the torque sensor is connected to the bottom of the fixed base through a bolt.
8. The tension-torsion combined clamp applied to the bone screw performance tester of claim 7, wherein: the torque sensor and the pressure sensor are connected through an upper connecting plate, and the torque sensor and the pressure sensor are connected with the upper connecting plate through bolts.
9. The tension-torsion combined clamp applied to the bone screw performance tester of claim 8, wherein: the pressure sensor is connected with the fixed bottom plate through the lower connecting plate, and the pressure sensor is connected with the fixed bottom plate and the upper connecting plate through the bolts.
10. The tension-torsion combined clamp applied to the bone screw performance tester of claim 9, wherein: the fixed base plate is further provided with a protective cover, the torque sensor is arranged in the protective cover, the bottom of the pressure sensor is located in the protective cover, and the upper portion of the pressure sensor protrudes out of the top of the protective cover and is connected with the fixed seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022546522.5U CN213689176U (en) | 2020-11-06 | 2020-11-06 | Tension-torsion combined clamp applied to bone screw performance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022546522.5U CN213689176U (en) | 2020-11-06 | 2020-11-06 | Tension-torsion combined clamp applied to bone screw performance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213689176U true CN213689176U (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022546522.5U Active CN213689176U (en) | 2020-11-06 | 2020-11-06 | Tension-torsion combined clamp applied to bone screw performance tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213689176U (en) |
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2020
- 2020-11-06 CN CN202022546522.5U patent/CN213689176U/en active Active
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