CN210878628U

CN210878628U - Bone plate clamp

Info

Publication number: CN210878628U
Application number: CN201921344700.7U
Authority: CN
Inventors: 刘阳; 鲍野
Original assignee: Tianjin Zhengtian Medical Instrument Co Ltd
Current assignee: Tianjin Zhengtian Medical Instrument Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-06-30
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses a bone plate anchor clamps relates to parts machining technical field, and wherein, above-mentioned bone plate anchor clamps include: the fixing base is used for supporting the bone lamella to be processed, when the fixing base supports the bone lamella to be processed, the supporting surface of the fixing base can be attached to and connected with the bone lamella to be processed, the projection of the supporting surface on the plane where the bone lamella to be processed is located on the inner side of the edge of the bone lamella to be processed, the first positioning pin is at least two, the first positioning pin is fixed on the fixing base and protrudes out of the supporting surface, the first positioning pin can stretch into the pin hole of the bone lamella to be processed, the first screw is fixed on the fixing base and can be in threaded connection with the bone lamella to be processed, through the arrangement, the bone lamella to be processed is only connected with the fixing base through the supporting surface, and the accuracy and the firmness of clamping and positioning can be guaranteed.

Description

Bone plate clamp

Technical Field

The utility model relates to a parts machining technical field, concretely relates to bone plate anchor clamps.

Background

The metal special-shaped bone-knitting steel plate is a medical appliance, and is suitable for internal fixation of limb metaphysis fracture. At present, at the in-process of processing metal dysmorphism coaptation steel sheet, the clamping mode generally adopts the profile modeling to keep silent the clamping, consequently, anchor clamps can shelter from the bottom plate and the side of hone lamella, and during the processing hone lamella, only can process the upper surface and a small amount of side of hone lamella, and the unable processing of side is accomplished.

In addition, the problems of low clamping and positioning precision, loose clamping binding surface, easy looseness and the like can occur in the process of using a copying jaw clamping mode.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the bone plate clamp is provided, and the positioning precision and the attaching tightness of the bone plate to be processed in the clamping process are improved.

The utility model provides a bone plate clamp, include: the fixing base is used for supporting the bone plate to be processed, when the fixing base supports the bone plate to be processed, a supporting surface of the fixing base can be in fit connection with the bone plate to be processed, and a projection of the supporting surface on the surface of the bone plate to be processed is positioned inside the edge of the bone plate to be processed;

at least two first positioning pins are fixed on the fixing base and protrude out of the supporting surface, and the first positioning pins can extend into pin holes of the bone plate to be processed;

a first screw fixed on the fixing base and capable of being connected with the bone plate to be processed in a threaded mode.

As a preferable mode of the above bone plate jig, the shape of the support surface is the same as the shape of the bone plate to be processed.

In a preferred embodiment of the bone plate clamp, the plate surface area of the bone plate to be processed is 1.05-1.1 times the supporting surface area.

As a preferred version of the above bone plate clamp, the position of the first locator pin and the position of the first screw correspond to the positions of the screw holes in the finished bone plate.

As a preferable scheme of the bone plate clamp, the bone plate clamp further comprises a tool base, wherein the fixing base is fixed on the tool base, and the tool base is connected with a machine tool in a matched mode.

As a preferable mode of the bone plate clamp, the bone plate clamp further comprises a clamping assembly, wherein the fixing base is provided with a lateral flange, and the clamping assembly is arranged on the tool base and can clamp the lateral flange of the fixing base on the tool base.

As a preferred aspect of the above bone plate clamp, the clamping assembly comprises:

the pressing plate is L-shaped and comprises a first bending part and a second bending part which are mutually perpendicular, the first bending part can be abutted against the tool base, the second bending part can be abutted against the lateral flange,

and the second screw penetrates through the second bending part, and when the second screw is locked on the tooling base, the first bending part and the second bending part are respectively pressed on the tooling base and the lateral flange.

As a preferred aspect of the above bone plate clamp, the clamping assembly is plural and spaced along the periphery of the lateral flange.

As a preferable scheme of the bone plate clamp, a second positioning pin is arranged on the tool base, and a limiting hole is arranged at the bottom of the fixing base;

the second positioning pin is matched and connected with the limiting hole to realize the positioning connection of the fixing base and the tool base.

As a preferable mode of the above bone plate clamp, at least two fixing bases can be fixed to each of the tool bases.

The utility model provides a bone plate clamp includes fixed baseplate, first locating pin and first screw. The fixing base is used for supporting the bone plate to be processed, when the fixing base supports the bone plate to be processed, the supporting surface of the fixing base can be attached and connected with the bone plate to be processed, and the projection of the supporting surface on the surface where the bone plate to be processed is located on the inner side of the edge of the bone plate to be processed; the first locating pins are at least two and are all fixed on the fixing base, the first locating pins protrude out of the supporting surface, the first locating pins can stretch into pin holes of the bone plate to be machined, the first locating pins are fixed on the fixing base through screws and can be in threaded connection with the bone plate to be machined, through the arrangement, the bone plate to be machined is only connected with the fixing base through the supporting surface, and the accuracy and the firmness of clamping and positioning can be guaranteed.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

Further features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments thereof, which is to be read in connection with the accompanying drawings, which are briefly described as follows. It is obvious that the drawings in the following description are some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is an exploded view of a bone plate clamp according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a bone plate clamp according to an embodiment of the present invention when clamping a bone plate;

fig. 3 is a side view of a bone plate clamp according to an embodiment of the present invention clamping a bone plate;

FIG. 4 is a cross-sectional view taken in the direction C-C of FIG. 3;

fig. 5 is a bottom schematic view of a fixing base in a bone plate clamp according to an embodiment of the present invention;

in the figure: 1. a bone plate to be processed; 2. a first screw; 3. a first positioning pin; 4. a fixed base;

5. a clamping assembly; 6. a tooling base;

51. a second screw; 52. and (7) pressing a plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention 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 merely illustrative of the invention and are not intended to limit the invention.

In consideration of the problems of low clamping and positioning precision, loose clamping binding surface, easy looseness and the like in the existing process of using a profiling jaw clamping mode, the embodiment of the utility model provides a bone plate clamp; the technique can be applied to the clamping places of metal special-shaped bone-knitting steel plates and the like, and the embodiment of the utility model is described in detail below.

The first embodiment is as follows:

first, a bone plate clamp according to an embodiment of the present invention will be described with reference to fig. 1, 2, 3, 4 and 5.

A bone plate clamp comprises a fixing base 4, a first positioning pin 3 and a first screw 2, wherein the fixing base 4 is used for supporting a bone plate 1 to be processed, and the fixing base 4 is horizontally placed in the production process. When the fixing base 4 supports the bone plate 1 to be processed, the supporting surface of the fixing base 4 can be attached to the bone plate 1 to be processed, the projection of the supporting surface on the surface of the bone plate 1 to be processed is positioned inside the edge of the bone plate 1 to be processed, i.e., the edge of the bone plate 1 to be processed covers a supporting surface smaller than the supporting surface, so that an operator can process the side surface of the bone plate 1 to be processed conveniently. The first positioning pins 3 are at least two and are fixed on the fixing base 4 and protrude out of the supporting surface, and the first positioning pins 3 can extend into pin holes of the bone plate 1 to be processed, so that the positioning accuracy of the fixing base 4 and the bone plate 1 to be processed can be improved. The first screw 2 is fixed on the fixing base 4 and can be in threaded connection with the bone plate 1 to be processed, so that the firmness of connection between the fixing base 4 and the bone plate 1 to be processed is further guaranteed. It should be noted that the number of the first positioning pins 3 and the first screws 2 is plural, and the plural first positioning pins 3 and the plural first screws 2 can further increase the positioning accuracy and the connection firmness of the fixing base 4 and the bone plate 1 to be processed compared with the mode of providing a single first positioning pin 3 or a single first screw 2.

The shape of the support surface is identical to the shape of the bone plate 1 to be machined, so that the bone plate 1 to be machined can be completely fitted on the support surface and the surfaces of the bone plate 1 to be machined, except for the lower surface, can be presented to the operator for further processing.

In order to avoid damage to the supporting surface in the bone plate processing process, the area of the plate surface of the bone plate 1 to be processed is 1.05-1.1 times of the area of the supporting surface, and particularly, the whole edge of the bone plate 1 to be processed is slightly larger than the supporting surface, so that the safe production is facilitated.

In the implementation process, the position of the first positioning pin 3 and the position of the first screw 2 correspond to the positions of screw holes on the finished bone plate, so that redundant screw holes are prevented from being formed on the finished bone plate, and the initial positioning is also carried out for the processing of subsequent screw holes, so that the processing of the subsequent screw holes is facilitated.

In addition, the bone plate clamp further comprises a tooling base 6, the fixing base 4 is fixed on the tooling base 6, and the tooling base 6 is connected with a machine tool in a matched mode. Namely, the tool base 6 is arranged on one side of the fixed base 4 close to the machine tool, so as to be fixedly connected with the machine tool. In the specific clamping process, the fixed base 4 needs to be connected with the tool base 6 in a positioning mode. Generally, the tooling base 6 is larger in size than the fixed base 4 to facilitate handling by the operator concerned.

In order to effectively fix the tooling base 6 and the fixing base 4, the bone plate clamp further comprises a clamping component 5, wherein a lateral flange is arranged on the fixing base 4 and can be attached to the tooling base, and the clamping component 5 is arranged on the tooling base 6 and can clamp the lateral flange of the fixing base 4 on the tooling base 6.

Specifically, the clamping assembly 5 includes a pressure plate 52 and a second screw 51. The pressing plate 52 is L-shaped, and includes a first bending portion and a second bending portion perpendicular to each other, the first bending portion can be abutted against the fixture base 6, the second bending portion can be abutted against the lateral flange, and generally, an included angle between the first bending portion and the second bending portion is greater than 0 degree and less than 180 degrees.

The second screw 51 is arranged on the second bending part in a penetrating mode, when the second screw 51 is locked on the tooling base 6, the first bending part and the second bending part are respectively pressed on the tooling base 6 and the lateral flange, namely, the fixed base 4 and the tooling base 6 are stably connected through the matching of the pressing plate 52 and the second screw 51.

In the actual production process, in order to make the connection of the fixed base 4 and the tooling base 6 more firm, the clamping assemblies 5 are multiple, and the clamping assemblies 5 are arranged at intervals along the periphery of the lateral flange, so that the fixed base 4 and the tooling base 6 are reinforced from multiple angles and multiple square points.

Usually, the length of fixture base 6 is longer, and receives exogenic action easily in the course of working, is provided with the second locating pin on the above-mentioned fixture base 6, and the bottom of fixed baseplate 4 is provided with spacing hole, and the size in spacing hole here needs to be connected with the second locating pin phase-match, and the second locating pin is connected with spacing hole cooperation to realize fixed baseplate 4 and fixture base 6's location and be connected.

It should be noted that, in order to meet the requirements of operators for line production or simultaneous operation during the production process, at least two fixing bases 4 can be fixed on each tooling base 6, and in the implementation process, one tooling base 6 usually includes more than two fixing bases 4.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A bone plate clamp, comprising:

a fixing base (4) for supporting the bone plate (1) to be processed, wherein when the fixing base (4) supports the bone plate (1) to be processed, a supporting surface of the fixing base (4) can be in fit connection with the bone plate (1) to be processed, and a projection of the supporting surface on the surface of the bone plate (1) to be processed is positioned inside the edge of the bone plate (1) to be processed;

at least two first positioning pins (3) are fixed on the fixing base (4) and protrude out of the supporting surface, and the first positioning pins (3) can extend into pin holes of the bone plate (1) to be processed;

a first screw (2) which is fixed on the fixing base (4) and can be screwed with the bone plate (1) to be processed.

2. The bone plate clamp according to claim 1, characterized in that the shape of the support surface is the same as the shape of the bone plate (1) to be machined.

3. The bone plate clamp according to claim 1, characterized in that the plate surface area of the bone plate (1) to be machined is 1.05-1.1 times the support surface area.

4. The bone plate clamp according to claim 1, characterized in that the position of the first positioning pin (3) and the position of the first screw (2) correspond to the positions of the screw holes on the finished bone plate.

5. The bone plate clamp according to claim 1, further comprising a tooling base (6), wherein the fixing base (4) is fixed on the tooling base (6), and the tooling base (6) is in fit connection with a machine tool.

6. The bone plate clamp according to claim 5, further comprising a clamping assembly (5), wherein the fixing base (4) is provided with a lateral flange, and wherein the clamping assembly (5) is provided on the tooling base (6) and is capable of clamping the lateral flange of the fixing base (4) on the tooling base (6).

7. The bone plate clamp of claim 6, wherein the clamping assembly (5) comprises: the pressing plate (52) is L-shaped and comprises a first bending part and a second bending part which are perpendicular to each other, the first bending part can be abutted against the tooling base (6), the second bending part can be abutted against the lateral flange,

and the second screw (51) penetrates through the second bending part, and when the second screw (51) is locked on the tooling base (6), the first bending part and the second bending part are respectively pressed on the tooling base (6) and the lateral flange.

8. The bone plate clamp according to claim 6, characterized in that the clamping assembly (5) is plural and spaced along the periphery of the lateral flange.

9. The bone plate clamp according to any one of claims 5 to 8, characterized in that the tooling base (6) is provided with a second positioning pin, and the bottom of the fixing base (4) is provided with a limiting hole;

the second positioning pin is matched and connected with the limiting hole to realize the positioning connection of the fixing base (4) and the tool base (6).

10. The bone plate clamp of claim 5, characterized in that at least two fixing bases (4) can be fixed to each of the tooling bases (6).