CN214394020U

CN214394020U - Pressure assembly device for bone drill or bone saw parts

Info

Publication number: CN214394020U
Application number: CN202023105356.1U
Authority: CN
Inventors: 何斌
Original assignee: Shaanxi Ansen Medical Technology Development Co ltd
Current assignee: Shaanxi Ansen Medical Technology Development Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-10-15
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a pressure assembly device for bone drill or bone saw spare part, establish the frame on the base, be equipped with the pressure equipment platform in the frame, be equipped with the ball of installing on the pressure equipment platform on the fixing base of frame, be equipped with the driving gear with the output shaft hookup of motor in the base, the driving gear passes through driven gear and ball hookup, digital display vertical scale is established to frame one side, pressure equipment platform and digital display vertical scale hookup, establish the part frock on the three-jaw chuck of base, establish the second part in the part frock, establish the cylinder on the pressure equipment platform, first part is established to the cylinder lower extreme. The utility model discloses an output shaft of motor drives driving gear, driven gear, ball motion in proper order, and ball turns into the linear motion of pressure equipment platform on the guide rail with rotary motion, drives the vertical scale of digital display and carries out the up-and-down motion. The digital display vertical scale can accurately detect the press-fitting platform provided with the cylinder, so that the cylinder can accurately press-fit the part in place according to a certain pressure.

Description

Pressure assembly device for bone drill or bone saw parts

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to a pressure assembly device that is used for bone to bore or bone saw spare part.

Background

The bone drill or bone saw product is equipment used for punching and cutting bones by doctors in surgical operations, has high requirements on the performance of the product in the use process, so the production quality of the product needs to be strictly controlled, the size of the internal part is relatively small, if the size of the press-fitting force cannot be accurately controlled in the press-fitting process, the part is damaged, and the probability of failure in the use process of the product is relatively high. The traditional press fitting mode is pressure fitting by adopting a manual press, and the manual press has the following defects: the pressure is not easy to control, so that the quality stability of the press-fitting parts is poor; when the manual press is assembled, corresponding tools need to be designed according to different parts to ensure that parts can be installed at corresponding positions, so that the production cost is increased; the manual press machine has relatively low production efficiency of pressure assembly, and is not beneficial to the batch production of products.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome above-mentioned prior art's shortcoming, provide a pressure assembly device that is used for bone drill or bone saw spare part of accurate control pressure equipment power size, quick accurate location correct pressure equipment position.

The technical scheme for solving the technical problems is as follows: be provided with the frame on the base, be provided with the pressure equipment platform along slide rail vertical migration from top to bottom in the frame, be provided with the ball of installing on the pressure equipment platform on the fixing base of frame, be provided with the driving gear with the output shaft hookup of motor in the base, the driving gear passes through driven gear and ball hookup, frame one side is provided with digital display vertical scale, pressure equipment platform and digital display vertical scale hookup, be provided with the part frock on the three-jaw chuck of base, be provided with the second part in the part frock, set up on the pressure equipment platform and be located the cylinder of three-jaw chuck top, the cylinder lower extreme is provided with first part.

The utility model discloses a perpendicular bisector of first part, second part, three-jaw chuck 7 is same straight line with the perpendicular bisector of cylinder 3 respectively.

The utility model discloses an output shaft of motor drives driving gear, driven gear, ball motion in proper order, and ball turns into the linear motion of pressure equipment platform on the guide rail with rotary motion, drives the vertical scale of digital display and carries out the up-and-down motion. The digital display vertical scale can accurately detect the press-fitting platform provided with the cylinder, so that the cylinder can accurately press-fit the part in place according to a certain pressure. The three-jaw chuck is arranged on the working table surface of the equipment, so that the part can be rapidly clamped, the concentricity of the part and the cylinder can be ensured, the problem that the part is damaged due to the non-concentricity in the press fitting process is avoided, and the press fitting efficiency of the part is improved. The utility model has the advantages of high production efficiency, low cost, good stability, accurate control of the pressure loading force, quick and accurate positioning.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a sectional view a-a of fig. 2.

Fig. 4 is a sectional view B-B of fig. 2.

Fig. 5 is a cross-sectional view C-C of fig. 2.

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.

As shown in fig. 1 to 5, the press-fitting device for bone drill or bone saw components of this embodiment is formed by coupling a fixed seat 1, a ball screw 2, a cylinder 3, a press-fitting platform 4, a first part 5, a second part 6, a three-jaw chuck 7, a part fixture 8, a base 9, a digital display vertical scale 10, a frame 11, a slide rail 12, a motor 13, a driving gear 14, and a driven gear 15.

The press mounting device is characterized in that a rack 11 is installed on a base 9, a sliding rail 12 is installed on the rack 11, a press mounting platform 4 which vertically moves up and down along the sliding rail 12 is installed on the rack 11, a ball screw 2 is installed on the press mounting platform 4, the ball screw 2 rotates to drive the press mounting platform 4 to vertically move up and down along the sliding rail 12, and two ends of the ball screw 2 are installed on two fixing seats 1 of the rack 11. Install motor 13 in the base 9, the output shaft and the driving gear 14 hookup of motor 13, driving gear 14 and driven gear 15 intermeshing, driven gear 15 and ball 2's one end hookup, motor 13 is started, and the output shaft of motor 13 drives driving gear 14, driven gear 15, ball 2 motion in proper order, is rotary motion through ball 2, drives pressure equipment platform 4 and does vertical motion from top to bottom on slide rail 12. The side surface of the rack 11 is provided with a digital display vertical scale 10, one side of the press mounting platform 4 is connected with the digital display vertical scale 10, the digital display vertical scale 10 drives the press mounting platform 4 to vertically move, the distance of the up-and-down movement of the press mounting platform 4 can be detected in real time in the movement process of the press mounting platform 4, and the cylinder 3 can accurately press and mount the first part 5 and the second part 6 in place according to certain pressure. A part tool 8 is arranged on a three-jaw chuck 7 of a base 9, the three-jaw chuck 7 can rapidly clamp the part tool 8, a second part 6 is arranged in the part tool 8, the second part 6 is a motor, an air cylinder 3 positioned above the three-jaw chuck 7 is arranged on a press-fitting platform 4, a first part 5 is arranged at the lower end of the air cylinder 3, the first part 5 is a motor shaft end gear, the air cylinder 3 can realize the pressure assembly action of parts of a bone drill or a bone saw product, the perpendicular bisectors of the first part 5, the second part 6 and the three-jaw chuck 7 are respectively the same straight line with the perpendicular bisector of the air cylinder 3, when the motor and the motor shaft end gear are subjected to pressure assembly, the motor is arranged in the part tool 8, the part tool 8 is arranged in the three-jaw chuck 7, the three-jaw chuck 7 can accurately fix the position of the motor, and ensure that the three-jaw chuck 7 and the air cylinder 3 are concentric, the problem that parts are damaged due to non-concentricity in the press fitting process is avoided, and the press fitting efficiency of parts is improved. The utility model discloses be applicable to the bearing that bores or bone saw simultaneously and bore main shaft, planet carrier round pin axle and planet carrier, skeleton oil blanket and end cover, drill chuck and bore the pressure assembly of main shaft, saw knife rest and saw shift fork, controller grafting piece and controller base, battery case socket and battery case shell to the bone.

The operation steps of this embodiment are as follows:

starting a motor 13, wherein an output shaft of the motor 13 sequentially drives a driving gear 14, a driven gear 15 and a ball screw 2 to move, the ball screw 2 rotates to drive a press-mounting platform 4 to vertically move on a slide rail 12, and drives a digital display vertical scale 10 to vertically move, a motor shaft end gear at the lower end of a cylinder 3 arranged on the press-mounting platform 4 is in contact with a shaft end surface of the motor, a display numerical value of the digital display vertical scale 10 is reset, the distance that the press-mounting platform 4 needs to move upwards is calculated according to the distance between the motor shaft end gear and the shaft end of the motor and the stroke of the cylinder 3, the press-mounting platform 4 moves upwards, when the distance measurement numerical value displayed by the digital display vertical scale 10 is the calculated upwards-moving distance, the motor 13 stops, and the cylinder 3 is started to press-mount the motor shaft end gear on a motor shaft by adjusting the gas pressure of the cylinder 3. After the pressure assembly is completed, the three-jaw chuck 7 is loosened, and the pressure assembly work of the other group of motors and the motor shaft end gear is carried out.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A press-fit assembly for a bone drill or bone saw component, comprising: the press mounting device is characterized in that a rack (11) is arranged on a base (9), a press mounting platform (4) which vertically moves up and down along a sliding rail (12) is arranged on the rack (11), a ball screw (2) installed on the press mounting platform (4) is arranged on a fixing seat (1) of the rack (11), a driving gear (14) connected with an output shaft of a motor (13) is arranged in the base (9), the driving gear (14) is connected with the ball screw (2) through a driven gear (15), a digital display vertical scale (10) is arranged on one side of the rack (11), the press mounting platform (4) is connected with the digital display vertical scale (10), a part tool (8) is arranged on a three-jaw chuck (7) of the base (9), a second part (6) is arranged in the part tool (8), an air cylinder (3) above the three-jaw chuck (7) is arranged on the press mounting platform (4), and a first part (5) is arranged at the lower end of the air cylinder (3).

2. A press-fit assembly for components of bone drills or saws as claimed in claim 1, wherein: the perpendicular bisector of first part (5), second part (6), three-jaw chuck (7) be same straight line with the perpendicular bisector of cylinder (3) respectively.