Digital display high-precision four-head hexagon socket screw tightening device for false tooth carving machine

Abstract

The utility model relates to the technical field of dental carving machine tools, in particular to a digital display high-precision four-head inside hexagonal bolt tightening device for a false tooth carving machine, which comprises a handle, a central control display screen, a base and a bolt tightening unit, the base is of a semicircular structure, the outer wall of one end of the base is connected with the inner end of the handle, and the outer wall of the other end of the base is connected with the inner end of the central control display screen. The central control display screen is fixed in the middle of the handle; and four bolt tightening units matched with inner hexagon bolts on the false tooth carving machine in position are arranged at the bottom of the base at intervals. According to the utility model, the motors of the four bolt tightening units are all electrically connected with the central control display screen, and the central control display screen synchronously and accurately controls the tightening force of the motors to drive the tightening pieces to the hexagon socket screws on the false tooth engraving machine, so that the zirconium oxide porcelain block on the false tooth engraving machine is uniformly stressed; and moreover, the situation that the zirconium oxide porcelain block is damaged due to loosening or excessive tightening of the inside hexagonal bolt, unnecessary waste is generated, and the product quality is affected can be avoided as much as possible.

Description

TECHNICAL FIELD

[0001] The utility model relates to dental carving machine tool technology field especially relates to a digital display high accuracy four head internal hexagonal bolt tightening device for false tooth carving machine. BACKGROUND

[0002] In the false tooth processing industry, zirconia porcelain block is widely used in the production of false tooth due to its good biocompatibility, high strength and aesthetic appearance. False tooth carving machine, as an important supporting equipment of CAD / CAM digital software, its performance and precision directly affect the quality of the final false tooth.

[0003] CAD / CAM technology and semi-clamping and full-clamping technology of dental equipment are indispensable important components in modern oral medicine field. CAD (computer aided design) technology allows oral doctors or technicians to accurately design the shape, size and color of false tooth on the computer, so as to ensure that the final restoration perfectly matches the oral structure and needs of the patient. CAM (computer aided manufacturing) technology directly manufactures false tooth according to CAD design data through high-precision mechanical equipment such as false tooth carving machine, greatly improving the accuracy and efficiency of production.

[0004] However, as a soft and brittle ceramic material, zirconia porcelain block is prone to internal stress due to improper operation during clamping, which not only affects the processing performance of zirconia porcelain block, but also may cause cracks or breakage of false tooth during use, thereby affecting the use experience of patients.

[0005] The clamping fixture of the carving machine usually uses four internal hexagonal bolts to clamp the steps of the zirconia porcelain block up and down for carving. Although this clamping method is simple, it has many deficiencies in actual operation. For example, due to the difficulty in accurately controlling the tightening force of the internal hexagonal bolt, the zirconia porcelain block is often unevenly stressed, thereby generating internal stress. In addition, the loosening or over-tightening of the internal hexagonal bolt may also damage the zirconia porcelain block, causing material waste and affecting the quality of the product.

[0006] Moreover, in the existing clamping method, when using the traditional internal hexagonal wrench to tighten, the four internal hexagonal bolts need to be preliminarily tightened and finally tightened respectively, a total of multiple tightening actions, which is time-consuming and labor-intensive.

[0007] Based on the above problems, the utility model provides a digital display high accuracy four head internal hexagonal bolt tightening device for false tooth carving machine. UTILITY MODEL CONTENTS

[0008] The utility model discloses a digital display high accuracy four head internal hexagonal bolt tightening device for false tooth carving machine, four bolt tightening units' motor all are electrically connected with the central control display screen, through the central control display screen synchronous accurate control motor drive tightening piece's tightening strength to false tooth carving machine upper internal hexagonal bolt, make the zirconia porcelain block on false tooth carving machine stress even, and can avoid as far as possible, the loosening or over tightening of internal hexagonal bolt causes the damage of zirconia porcelain block, produces unnecessary waste, influences the quality of product.

[0009] In order to realize the utility model's purpose, the utility model adopts the technical scheme that is:

[0010] The utility model discloses a digital display high accuracy four head internal hexagonal bolt tightening device for false tooth carving machine, including handle, central control display screen, base and bolt tightening unit, the base is half circular ring structure, the outer wall of one end of base is connected with the inner end of handle, and the middle part of handle is fixed with central control display screen, the bottom interval of base is provided with four bolt tightening units that are matched with the position of internal hexagonal bolt on false tooth carving machine.

[0011] The bolt tightening unit includes motor, output shaft and tightening piece, and the motor is fixed to the bottom of the base, and the motor shaft is provided with the output shaft at the bottom, and the tightening piece includes tightening rod and tightening head, and the top end of the tightening rod is connected with the bottom end of the output shaft, and the cross section of the tightening head is a regular hexagon structure, and the motor is electrically connected with the central control display screen.

[0012] The output shaft is connected with the tightening rod through a quick release mechanism, the quick release mechanism comprises a connecting pipe, a sleeve pipe, a limiting ball, a ball hole, a limiting snap ring and a compression spring, the connecting pipe is in a cylindrical structure, the bottom of the connecting pipe is provided with a recess in a regular polygon shape for the top end of the tightening rod to be inserted, the outer wall of the connecting pipe is provided with the ball hole with the same outer diameter as the limiting ball above the two sides, the wall thickness of the connecting pipe is smaller than the outer diameter of the ball hole, and the outer wall of the tightening rod is provided with an arc-shaped groove above for the inner end of the limiting ball to be clamped.

[0013] The top end of the connecting pipe is connected with the bottom end of the output shaft through a torque sensor, and the torque sensor is electrically connected with the central control display screen.

[0014] The inner side of the ball hole is provided with a limiting ring, and the inner diameter of the limiting ring is smaller than the inner diameter of the ball hole.

[0015] The outer wall of the tightening rod is provided with the arc-shaped groove above and below, and the arc-shaped groove is provided with two tightening heads with different side lengths above and below.

[0016] The outer end of the handle is provided with an anti-skid pattern, and the outer end of the handle is in a semispherical structure.

[0017] The beneficial effects of the utility model lie in:

[0018] (1) the motors of the four bolt tightening units are electrically connected with the central control display screen, the bolt tightening force of the tightening member on the false tooth carving machine is synchronously and accurately controlled by the central control display screen, the zirconia porcelain block on the false tooth carving machine is uniformly stressed, the loosening or over-tightening of the internal hexagonal bolt can be avoided as much as possible, unnecessary waste is avoided, and the quality of the product is affected.

[0019] (2) the tightening rod and the output shaft of the motor are connected through the quick release mechanism, the tightening member can be quickly replaced, different models of internal hexagonal bolts can be matched, and the universality and flexibility are enhanced.

[0020] (3) The utility model discloses a setting arc -shaped groove on the outer wall top and outer wall below of the tightening rod, and setting two kinds of the tightening head of different side length on the top and below of arc -shaped groove respectively, make the both ends of a tightening rod can set two kinds of model tightening head.

[0021] (4) The outer end outer wall of handle is equipped with antiskid line, and the friction is increased, and the mistake or safety problem caused by hand slip is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic diagram of the utility model;

[0023] Figure 2 It is the structure schematic diagram of bolt tightening unit in the utility model;

[0024] Figure 3 It is the section schematic diagram of bolt tightening unit in the utility model;

[0025] Figure 4 It is Figure 3 The local enlarged view of

[0026] Figure 5 The local enlarged view of Figure 4

[0027] In the drawing: 1 handle, 11 antiskid line, 2 central control display screen, 3 base, 4 bolt tightening unit, 41 motor, 42 output shaft, 43 tightening piece, 431 tightening rod, 432 tightening head, 433 arc -shaped groove, 5 quick -release mechanism, 51 connecting pipe, 52 sleeve, 53 limit ball, 54 ball hole, 55 limit snap ring, 56 compression spring, 57 recess, 58 limit snap ring groove, 59 limit ring, 521 upper section, 522 middle section, 523 lower section, 524 bottom section. DETAILED DESCRIPTION

[0028] The utility model is further explained as follows:

[0029] Please refer to Figures 1-5 ,

[0030] ​The utility model discloses a digital display high accuracy four head internal hexagonal bolt tightening device for false tooth carving machine, including handle 1, central control display 2, base 3 and bolt tightening unit 4, the base 3 is half circular ring structure, the outer wall of one end of base 3 is connected with the inner end of handle 1, and the middle part of handle 1 is fixed with central control display 2, the bottom of base 3 is provided with four bolt tightening units 4 matched with the internal hexagonal bolt position on false tooth carving machine, and the bolt tightening unit 4 includes motor 41, output shaft 42 and tightening piece 43, the motor 41 is fixed on the bottom of base 3, the motor 41 axial bottom is equipped with output shaft 42, the tightening piece 43 includes tightening rod 431 and tightening head 432, the top end of tightening rod 431 is connected with the bottom end of output shaft 42, the cross section of tightening head 432 is regular hexagon structure, the motor 41 is electrically connected with central control display 2, and the utility model passes through the motor 41 of four bolt tightening units 4 and is electrically connected with central control display 2, and the tightening force of tightening piece 43 driven motor 41 on the internal hexagonal bolt on false tooth carving machine is synchronously and accurately controlled through central control display 2, so that the stress of zirconia porcelain block on false tooth carving machine is uniform, and the loosening or over tightening of internal hexagonal bolt can be avoided as far as possible to cause damage to zirconia porcelain block, unnecessary waste is produced, and the quality of product is influenced, when working, the user holds handle 1, and four tightening heads 432 are aligned with four internal hexagonal bolts on false tooth carving machine, then through the key adjustment on central control display 2 to the suitable torsion, four motors 41 are controlled and start simultaneously, and four internal hexagonal bolts are tightened simultaneously.

[0031] Preferably,

[0032] Further, the output shaft 42 and the tightening rod 431 are connected through the quick release mechanism 5, which comprises a connecting pipe 51, a sleeve 52, a limiting ball 53, a ball hole 54, a limiting snap ring 55 and a compression spring 56. The connecting pipe 51 is in a cylindrical structure, the bottom of which is provided with a recess 57 in a regular polygonal shape for the top end of the tightening rod 431 to be inserted into, the two sides of the outer wall of the connecting pipe 51 are provided with the ball hole 54 with the same outer diameter as the limiting ball 53, the wall thickness of the connecting pipe 51 is smaller than the outer diameter of the ball hole 54, and the outer wall of the tightening rod 431 is provided with an arc-shaped groove 433 for the inner end of the limiting ball 53 to be clamped. The sleeve 52 is sleeved on the outside of the connecting pipe 51, the inner wall of the sleeve 52 includes an upper section 521, a middle section 522, a lower section 523 and a bottom section 524 connected in sequence from top to bottom, the inner wall of the middle section 522 is in contact with the outer end of the limiting ball 53, the inner diameter of the upper section 521 is larger than that of the middle section 522, the inner diameter of the upper section 521 is equal to the outer diameter of the output shaft 42, and the compression spring 56 is connected between the outer edge of the end of the output shaft 42 and the top of the middle section 522. The inner diameter of the lower section 523 is larger than that of the middle section 522, and the difference between the inner diameters of the lower section 523 and the middle section 522 is greater than the maximum depth of the arc-shaped groove 433. The outer wall of the connecting pipe 51 is provided with a limiting snap ring groove 58 for matching and clamping the limiting snap ring 55, the bottom section 524 is arranged at the bottom of the lower section 523, the inner diameter of the bottom section 524 is equal to the outer diameter of the connecting pipe 51, the bottom of the bottom section 524 is in close contact with the upper surface of the limiting snap ring 55, and the tightening rod 431 and the output shaft 42 of the motor 41 are connected through the quick release mechanism 5, so that the tightening piece 43 can be quickly replaced, different types of inner hexagonal bolts can be adapted, and the versatility and flexibility are enhanced.

[0033] The working process of the quick release mechanism 5 is as follows: Figure 3 As shown in the sectional view of the connection of the tightening piece 43 and the quick release mechanism 5, at this time, the top end of the tightening rod 431 is inserted into the recess 57 at the bottom of the connecting pipe 51, the inner end of the limiting ball 53 is inserted into the arc-shaped groove 433 on the outer wall of the tightening rod 431, the outer end of the limiting ball 53 is in close contact with the inner wall of the middle section 522 of the sleeve 52, and the compression spring 56 drives the bottom of the bottom section 524 of the sleeve 52 to be in close contact with the upper surface of the limiting snap ring 55, so that the connection of the tightening piece 43 and the quick release mechanism 5 is realized.

[0034] When the tightening piece 43 needs to be replaced, the user slides the sleeve 52 upward with one hand, so that the lower section 523 of the sleeve 52 moves upward to the outside of the limiting ball 53, and the user pulls the tightening piece 43 downward with the other hand, the downward pulling force acts on the inner end surface of the limiting ball 53, a partial outward thrust is generated, the outer end of the limiting ball 53 is in contact with the inner wall of the lower section 523, since the difference between the inner diameters of the lower section 523 and the middle section 522 is greater than the maximum depth of the arc-shaped groove 433, at this time, the limiting ball 53 does not interfere with the downward movement of the tightening piece 43, so that the tightening piece 43 is taken out, and the installation is the same.

[0035] Further, a torque sensor is connected between the top end of the connecting pipe 51 and the bottom end of the output shaft 42, the torque sensor is electrically connected with the central control display screen 2, can monitor and feedback the torque value applied to the inner hexagonal bolt to the central control display screen 2 in real time,

[0036] Preferably, when the torque value feedback by the torque sensor reaches the preset torque value, the central control display screen 2 can issue a slight vibration reminder and display a "torque up to standard" prompt; the central control display screen 2 is internally integrated with an intelligent control system, the user can select the preset torque mode through the central control display screen, and the system automatically adjusts the torque setting of each bolt tightening unit 4.

[0037] Preferably, the central control display screen 2 also has a backlight function, which can automatically adjust the brightness according to the ambient light or manually adjust when the user needs, to ensure that information can be clearly displayed under various light conditions.

[0038] Further, the inner side of the ball hole 54 is provided with a limiting ring 59, the inner diameter of the limiting ring 59 is slightly smaller than the inner diameter of the ball hole 54, to ensure that the limiting ball 53 will not accidentally roll into the inside of the connecting pipe 51 when the tightening piece 43 is replaced, affecting the normal use of the device.

[0039] Further, the outer wall of the tightening rod 431 is provided with the arc-shaped groove 433 above and below the outer wall, and the arc-shaped groove 433 is provided with two kinds of tightening heads 432 with different side lengths above and below, so that the two ends of one tightening rod 431 can be provided with two kinds of tightening heads 432.

[0040] Further, the outer end of the handle 1 is provided with anti-skid lines 11, and the outer end of the handle 1 is in a semispherical structure, to increase the friction and prevent the user from slipping and causing mistakes or safety problems.

[0041] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, any equivalent transformation or direct or indirect application in related technical fields based on the content of the present application and the drawings is also included in the patent protection range of the present application.

Claims

1. A digital display high-precision four-head internal hex bolt tightening device for a dental prosthesis carving machine, characterized in that: Including handle (1), central control display screen (2), base (3) and bolt tightening unit (4), the base (3) is half circular ring structure, one end outer wall of the base (3) is connected with the inner end of the handle (1), the middle part of the handle (1) is fixed with the central control display screen (2); The bottom of the base (3) is provided with four bolt tightening units (4) matched with the position of the internal hexagonal bolt of the false tooth carving machine, the bolt tightening unit (4) includes motor (41), output shaft (42) and tightening piece (43), the motor (41) is fixed to the bottom of the base (3), the motor (41) is provided with output shaft (42) in the axial bottom, the tightening piece (43) includes tightening rod (431) and tightening head (432), the top end of the tightening rod (431) is connected with the bottom end of the output shaft (42), the cross section of the tightening head (432) is regular hexagon structure, the motor (41) is electrically connected with the central control display screen (2).

2. The digital display high-precision four-head internal hexagonal bolt tightening device for a denture carving machine according to claim 1, characterized in that: The output shaft (42) and the tightening rod (431) are connected through the quick release mechanism (5), the quick release mechanism (5) includes connecting pipe (51), sleeve (52), limiting ball (53), ball hole (54), limiting snap ring (55) and compression spring (56), the connecting pipe (51) is cylindrical structure, the bottom is provided with recess (57) for the top end of the tightening rod (431) insertion, the connecting pipe (51) is provided with ball hole (54) with the same outer diameter of the limiting ball (53) on the upper side of the outer wall of both sides, the pipe wall thickness of the connecting pipe (51) is less than the outer diameter of the ball hole (54), the outer wall of the tightening rod (431) is provided with arc slot (433) for the inner end of the limiting ball (53) clamping; the sleeve (52) is sleeved on the outside of the connecting pipe (51), the inner wall cross section of the sleeve (52) includes upper segment (521), middle segment (522), lower segment (523) and bottom segment (524) connected in turn from top to bottom, the inner wall of the middle segment (522) is in contact with the outer end of the limiting ball (53), the inner diameter of the upper segment (521) is greater than the inner diameter of the middle segment (522), the inner diameter of the upper segment (521) is equal to the outer diameter of the output shaft (42), the end part of the output shaft (42) is connected with the top of the middle segment (522) through the compression spring (56); the inner diameter of the lower segment (523) is greater than the inner diameter of the middle segment (522), the difference between the inner diameter of the lower segment (523) and the middle segment (522) is greater than the maximum depth of the arc slot (433); the outer wall of the connecting pipe (51) is provided with limiting snap ring groove (58) matched with the limiting snap ring (55), the bottom segment (524) is arranged at the bottom of the lower segment (523), the inner diameter of the bottom segment (524) is equal to the outer diameter of the connecting pipe (51), the bottom of the bottom segment (524) is in close contact with the upper surface of the limiting snap ring (55).

3. The digital display high-precision four-head internal hexagonal bolt tightening device for a denture carving machine according to claim 2, characterized in that: A torque sensor is connected between the top end of the connecting pipe (51) and the bottom end of the output shaft (42), and the torque sensor is electrically connected with the central control display screen (2).

4. The digital display high-precision four-head internal hexagonal bolt tightening device for denture carving machines according to claim 2, characterized in that: The inner side of the ball hole (54) is provided with a limiting ring (59), and the inner diameter of the limiting ring (59) is smaller than the inner diameter of the ball hole (54).

5. The digital display high-precision four-head internal hexagonal bolt tightening device for denture carving machines according to claim 4, characterized in that: The outer wall of the tightening rod (431) is provided with the arc-shaped groove (433) above and below the outer wall, and the arc-shaped groove (433) is provided with two kinds of tightening heads (432) with different side lengths above and below.

6. The digital display high-precision four-head internal hexagonal bolt tightening device for denture carving machines according to claim 1, characterized in that: The outer end outer wall of the handle (1) is provided with an anti-skid pattern (11), and the outer end of the handle (1) is in a semispherical structure.

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