CN216880203U

CN216880203U - A novel clamping anchor clamps for orthopedics medical instrument coating film

Info

Publication number: CN216880203U
Application number: CN202220223211.1U
Authority: CN
Inventors: 何江海; 马高; 冯磊
Original assignee: Suzhou Jiheng Nano Technology Co ltd
Current assignee: Suzhou Jiheng Nano Technology Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-07-05
Anticipated expiration: 2032-01-27

Abstract

The utility model provides a novel clamping fixture for coating a film on an orthopedic medical instrument, which comprises a clamping turntable, a transmission gear and a clamping assembly, wherein the clamping assembly comprises a clamping rod, an inner sleeve ring, an outer sleeve ring and a steel ball; the outer lantern ring covers the outer side of the steel ball mounting portion, an inner ring groove is formed in the inner wall of the opening at the lower end of the jack, and the inner lantern ring is inserted into the inner ring groove. By adopting a hanging mode, the product is hung downwards along the clamping rod along with gravity, and the axial acting force of the transmission gear is reduced, so that the transmission gear smoothly rotates, and the axial rotation of the product in the coating furnace is realized.

Description

A novel clamping anchor clamps for orthopedics medical instrument coating film

Technical Field

The utility model relates to the technical field of tool fixtures, in particular to a novel clamping fixture for coating films on orthopedic medical instruments.

Background

Fig. 1 is a schematic structural diagram of an orthopaedic reamer product, which has a certain specificity and requires that the coverage of a surface coating reaches 90% of the whole product and the weight of the coating accounts for 95% of the whole product, so that in order to meet the requirements of the product, the product needs to be rotated three-dimensionally when the coating is performed in a coating furnace. However, the existing rotating mechanism for the coating furnace is that the wave gear is arranged at the bottom, the product is arranged at the upper part, and the gravity center of the product is close to the upper part and is heavy, so that the shifting fork is easy to block when rotating, the product has a male-female surface when being coated, and the adverse risk and probability of coating the product are increased.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: in order to overcome the defects in the prior art, the utility model provides a novel clamping fixture for coating a film on an orthopedic medical instrument.

The technical scheme adopted for solving the technical problems is as follows: a novel clamping fixture for coating a film on an orthopedic medical instrument comprises a clamping turntable, a transmission gear and a clamping assembly, wherein the number of the clamping assembly is at least one, the clamping assembly comprises a clamping rod, an inner sleeve ring, an outer sleeve ring and a steel ball, the upper end of the clamping rod penetrates through the clamping turntable from bottom to top, the end part of the upper end of the clamping rod is fixedly connected with the transmission gear, the transmission gear is rotatably connected with the clamping turntable, the transmission gear can drive the clamping rod to axially rotate, an axial insertion hole is formed in the lower end of the clamping rod, an annular steel ball mounting part is arranged on the clamping rod outside the insertion hole, at least one ball channel is radially arranged in the steel ball mounting part, at least one steel ball is arranged in each ball channel, and the diameter sum of the steel balls in each ball channel is larger than the radial width of the steel ball mounting part; the outer sleeve is covered on the outer side of the steel ball mounting part and used for sealing the steel ball in the ball channel and providing clamping force of the steel ball to the handle part of the product, so that the product is clamped and fixed; an inner ring groove is formed in the inner wall of the opening at the lower end of the jack, and the inner lantern ring is inserted into the inner ring groove to protect the flat position during film coating.

Furthermore, the middle part of the clamping rotary disc is provided with a central connecting hole, clamping holes with the same number as the clamping assemblies are arranged on the clamping rotary disc on the periphery of the central connecting hole, and a section of gear supporting ring is formed by upwards extending the upper end of each clamping hole. On one hand, the gear support ring is used for supporting the transmission gear, on the other hand, the length of the clamping hole is prolonged, the length of an axial joint between the gear support ring and the shaft sleeve is increased, shaking in the rotating process can be avoided, and stability is improved.

Specifically, in order to fix the transmission gear and the clamping rod, a pin hole is formed in the upper end of the clamping rod, and the transmission gear and the clamping rod are fixedly connected through a clamping pin arranged in the pin hole.

In order to improve the stability of transmission, the transmission gear comprises a tooth part, and a baffle is arranged on one side, away from the clamping turntable, of the tooth part. The transmission gear is connected with the shifting fork, the transmission gear is driven to rotate through the shifting fork, the limiting can be carried out through the baffle, the shifting fork is prevented from being separated from the transmission gear, and the transmission stability is guaranteed.

Further, drive gear's middle part is equipped with the shaft hole, and shaft hole downwardly extending forms the axle sleeve, form spacing annular between the outer wall of axle sleeve and the inner wall of tooth portion, the degree of depth of spacing annular is less than the height of gear support ring, supports drive gear through the gear support ring, avoids rotating the in-process, and drive gear contacts increase frictional force mutually with the relative one side of clamping sabot to reduce drive gear's drive power.

Preferably, the number of the clamping assemblies is at least two, and the clamping assemblies are uniformly distributed along the circumferential direction of the clamping turntable.

Preferably, the number of the clamping assemblies is four, and the clamping assemblies are uniformly distributed along the circumferential direction of the clamping turntable.

The utility model has the beneficial effects that: according to the novel clamping fixture for coating the film on the orthopedic medical instrument, the product to be coated is hung in a hanging mode, and the product is hung downwards along the clamping rod along with the action of gravity, so that the axial force is reduced, the axial acting force of a transmission gear driving the product to rotate is reduced, the transmission gear can smoothly rotate along with the shifting of a shifting fork, and the axial rotation of the product in a coating furnace is realized.

Drawings

The utility model is further illustrated by the following figures and examples.

FIG. 1 is a schematic view of the structure of a coated product according to the present invention.

Fig. 2 is an enlarged schematic view of the handle of fig. 1.

Fig. 3 is a schematic structural view of the clamping fixture of the present invention.

Fig. 4 is a schematic sectional structure view of a clamping mechanism of the clamping fixture of the utility model.

Fig. 5 is an enlarged schematic view at a in fig. 4.

Fig. 6 is a schematic structural view of the clamping turntable.

Fig. 7 is a schematic structural view of the transmission gear.

Fig. 8 is a schematic view of the structure of the clamping bar.

Fig. 9 is a sectional view schematically showing the structure of the clamping bar.

In the figure: 1. the product comprises 1.1 parts, a handle part, 1.2 parts, a cylindrical part, 1.3 parts, a conical part, 1.4 parts, a groove, 1.5 parts, a flat position, 2 parts, a clamping rotary disc, 2.1 parts, a central connecting hole, 2.2 parts, a clamping hole, 2.3 parts, a gear supporting ring, 3 parts, a clamping assembly, 3.1 parts, a clamping rod, 3.11 parts, a pin hole, 3.12 parts, a jack, 3.13 parts, a steel ball mounting part, 3.14 parts, a ball path, 3.15 parts, an inner ring groove, 3.2 parts, an inner ring, 3.3 parts, an outer ring, 3.4 parts, a steel ball, 4 parts, a transmission gear, 4.1 parts, a baffle, 4.2 parts, a shaft hole, 4.3 parts, a shaft sleeve, 4.4 parts, a limiting ring groove, 4.5 parts and a tooth part.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

For clearly explaining the structure of the clamping fixture of the utility model, taking the orthopaedic reamer product 1 as an example, as shown in fig. 1, the orthopaedic reamer product 1 comprises a handle 1.1, a cylindrical portion 1.2 and a tapered portion 1.3 which are integrally connected from top to bottom, fig. 2 is an enlarged structural schematic view of the handle 1.1, the handle 1.1 has a polygonal external shape, and has an annular groove 1.4 in the middle, and the side surface of the joint of the handle 1.1 and the cylindrical portion 1.2 has a flat position 1.5, when the product 1 is coated, the cylindrical portion 1.2 and the tapered portion 1.3 need to be coated, and the handle 1.1 does not need to be coated, i.e. the length indicated by H in the figure, so that the fixture needs to be sealed and protected when being designed.

As shown in fig. 3-5, on the basis of the structure of the handle 1.1 of the orthopaedic reamer product 1, the utility model provides a novel clamping fixture for coating a film on an orthopaedic medical instrument, which includes a clamping turntable 2, a transmission gear 4 and at least one clamping assembly 3, where in this embodiment, in order to simultaneously coat a plurality of products 1, preferably, four clamping assemblies 3 are uniformly distributed along the circumferential direction of the clamping turntable 2. Centre gripping subassembly 3 is including clamping pole 3.1, the interior lantern ring 3.2, outer lantern ring 3.3 and steel ball 3.4, upwards run through clamping carousel 2 from the lower side in clamping pole 3.1 upper end, and upper end tip and drive gear 4 fixed connection, in this embodiment, clamping pole 3.1 upper end is equipped with pinhole 3.11, drive gear 4 and clamping pole 3.1 are through setting up bayonet lock fixed connection in pinhole 3.11. The transmission gear 4 is rotationally connected with the clamping tray, and the transmission gear 4 can drive the clamping rod 3.1 to axially rotate; the lower end of the clamping rod 3.1 is provided with an axial insertion hole 3.12, the clamping rod 3.1 outside the insertion hole 3.12 is provided with an annular steel ball mounting part 3.13, at least one ball channel 3.14 is radially arranged in the steel ball mounting part 3.13, at least one steel ball 3.4 is arranged in each ball channel 3.14, the steel ball mounting part 3.13 is provided with two ball channels 3.14 in the embodiment, the two ball channels are symmetrical along the radial direction, one steel ball 3.4 is arranged in each ball channel 3.14, the diameter sum of the steel balls 3.4 in each ball channel 3.14 is larger than the radial width of the steel ball mounting part 3.13, namely the steel balls 3.4 can protrude from the ball channels 3.14; the outer sleeve 3.3 is covered on the outer side of the steel ball mounting part 3.13 and used for sealing the steel ball 3.4 in the ball channel 3.14 and providing clamping force of the steel ball 3.4 to the handle part 1.1 of the product 1, so that the product 1 is clamped and fixed; an inner ring groove 3.15 is arranged on the inner wall of the opening at the lower end of the insertion hole 3.12, the inner lantern ring 3.2 is inserted into the inner ring groove 3.15, and the structure of the clamping rod 3.1 is shown in fig. 8 and 9.

As shown in fig. 6, a central connection hole 2.1 is formed in the middle of the clamping turntable 2, the central connection hole 2.1 is used for connecting a clamp of the assembled product 1 to a coating device, clamping holes 2.2 with the same number as that of the clamping assemblies 3 are formed in the clamping turntable 2 on the periphery of the central connection hole 2.1, and a section of gear support ring 2.3 is formed by extending the upper end of each clamping hole 2.2 upwards.

As shown in fig. 7, the transmission gear 4 includes a tooth portion 4.5, a baffle plate 4.1 is arranged on one side of the tooth portion 4.5 away from the clamping turntable 2, a shaft hole 4.2 is arranged in the middle of the transmission gear 4, the shaft hole 4.2 extends downwards to form a shaft sleeve 4.3, a limit ring groove 4.4 is formed between the outer wall of the shaft sleeve 4.3 and the inner wall of the tooth portion 4.5, as shown in fig. 5, the depth H1 of the limit ring groove 4.4 is smaller than the height H2 of the gear support ring 2.3, the transmission gear 4 is supported by the gear support ring 2.3, and it is avoided that one side of the transmission gear 4 opposite to the clamping turntable is contacted with each other to increase friction force in the rotating process, so as to reduce the driving force of the transmission gear 4.

The assembly process and the working principle are as follows:

when in use, firstly, the inner lantern ring 3.2 is sleeved on the handle part 1.1 of the product 1 to protect the flat position 1.5 of the product 1; then the clamping rod 3.1 is arranged on the handle part 1.1 of the product 1, and the clamping rod 3.1 is also wrapped by the inner lantern ring 3.2 when clamping the handle part 1.1 of the product 1; a stainless steel ball 3.4 is respectively placed in two ball paths 3.14 of a steel ball mounting part 3.13 of the clamping rod 3.1, and the diameter of the steel ball 3.4 in the embodiment is 6 mm; then an outer sleeve ring 3.3 is sleeved outside the steel ball mounting part 3.13, the steel ball 3.4 is sealed inside the ball channel 3.14, and the steel ball 3.4 is propped against the groove 1.4 of the handle part 1.1; and finally, the assembled clamping assembly 3 is inserted into a clamping hole 2.2 of the clamping turntable 2, a pin hole 3.11 at the upper end of the clamping rod 3.1 is inserted into a bayonet lock, and the fixing with the transmission gear 4 is realized through the bayonet lock.

During film coating, the transmission gear 4 is shifted through the shifting fork, so that the clamping rod 3.1 drives the product 1 to axially rotate, the surface of the product 1 is fully and uniformly contacted with the coating in the coating furnace, and the film coating is realized.

The clamping fixture can enable the product 1 to rotate in the coating furnace, and meanwhile, the product 1 can revolve along with the clamping turntable 2 and can be in full and uniform contact with the coating, so that the reject ratio of the product 1 is reduced; through the connection of bayonet lock and plug, the clamping and dismantle are convenient, improve the change efficiency, very big satisfied the coating film requirement of customer to medical instrument.

In light of the foregoing description of preferred embodiments in accordance with the utility model, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a novel clamping anchor clamps for coating film of orthopedics medical instrument which characterized in that: the clamping device comprises a clamping turntable, a transmission gear and a clamping assembly, wherein the number of the clamping assemblies is at least one, each clamping assembly comprises a clamping rod, an inner sleeve ring, an outer sleeve ring and a steel ball, the upper end of each clamping rod penetrates through the clamping turntable from bottom to top, the end part of the upper end of each clamping rod is fixedly connected with the transmission gear, the transmission gear is rotatably connected with a clamping tray, the lower end of each clamping rod is provided with an axial insertion hole, an annular steel ball mounting part is arranged on the clamping rod outside the insertion hole, at least one ball channel is arranged in the steel ball mounting part along the radial direction, at least one steel ball is arranged in each ball channel, and the diameter sum of the steel balls in each ball channel is greater than the width of the steel ball mounting part along the radial direction; the outer lantern ring covers the outer side of the steel ball mounting portion, an inner ring groove is formed in the inner wall of the opening at the lower end of the jack, and the inner lantern ring is inserted into the inner ring groove.

2. The novel clamping fixture for coating the orthopedic medical instrument as claimed in claim 1, wherein: the middle part of the clamping rotary disc is provided with a central connecting hole, clamping holes with the same number as the clamping assemblies are arranged on the clamping rotary disc on the periphery of the central connecting hole, and a section of gear supporting ring is formed by upwards extending the upper end of each clamping hole.

3. The novel clamping fixture for coating the orthopedic medical instrument as claimed in claim 1, wherein: the upper end of the clamping rod is provided with a pin hole, and the transmission gear is fixedly connected with the clamping rod through a clamping pin arranged in the pin hole.

4. The novel clamping fixture for coating the orthopedic medical instrument as claimed in claim 1, wherein: in order to improve the stability of transmission, the transmission gear comprises a tooth part, and a baffle is arranged on one side, away from the clamping turntable, of the tooth part.

5. The novel clamping fixture for coating the orthopedic medical instrument as claimed in claim 1, wherein: the middle part of the transmission gear is provided with a shaft hole, the shaft hole extends downwards to form a shaft sleeve, a limiting ring groove is formed between the outer wall of the shaft sleeve and the inner wall of the tooth part, and the depth of the limiting ring groove is smaller than the height of the gear support ring.

6. The novel clamping fixture for coating the orthopedic medical instrument as claimed in claim 1, wherein: the clamping components are at least two and are uniformly distributed along the circumferential direction of the clamping turntable.

7. The novel clamping fixture for coating the orthopedic medical instrument, according to claim 6, is characterized in that: the clamping assemblies are four and are uniformly distributed along the circumferential direction of the clamping turntable.