Linear motion device for electric grinding wheel dresser

Abstract

The utility model relates to the technical field of linear motion of grinding wheel dressers, in particular to a linear motion device for an electric grinding wheel dresser. Comprising a grinding wheel dresser lower platform, a grinding wheel dresser upper platform, a wedge-shaped belt PJ, a motor fixing plate, a direct-current motor, a belt pulley, a lead screw bearing seat, a lead screw front seat, a first limiting sleeve, a lead screw pair, a lead screw nut mounting seat, a shaft elastic check ring A type, a second limiting sleeve and a linear rail pair. A motor fixing plate is arranged on the right side of the direct-current motor; the direct-current motor drives the lower belt pulley to rotate, the lower belt pulley drives the upper belt pulley to rotate through the wedge-shaped belt PJ, the upper belt pulley drives the lead screw pair to rotate, and the grinding wheel dresser lower platform is driven to linearly move through the counter-acting force generated when the lead screw pair is in threaded connection with the lead screw nut installation base. The electric grinding wheel dresser is driven by the grinding wheel dresser lower platform to do linear motion, and the functions of small occupied space and high safety are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a straight line motion technology field of grinding wheel dresser especially relates to a linear motion device for electric grinding wheel dresser. BACKGROUND

[0002] Numerical control grinding machine is through numerical control technology utilizes grinding tool to workpiece surface grinding processing machine, most grinding machine is using high -speed rotation grinding wheel grinding processing, and according to the actual processing situation of workpiece needs to adjust the position of electric grinding wheel dresser in real time, thus needs to adjust the position of electric grinding wheel dresser through the structure of linear use.

[0003] Common linear motion device for electric grinding wheel dresser only contains the function of linear motion, can adjust the position of electric grinding wheel dresser, but lacks the function of small space occupation and high safety, cannot guarantee the processing efficiency and the use rate of space, prone to the problem of previous grinding wheel dresser linear motion is through the movement of oil cylinder piston rod, power needs hydraulic station, hydraulic station occupies place, and the components of hydraulic station are many, and the hydraulic pipe connected to the hydraulic station to the oil cylinder not only occupies external space, but also affects the appearance, adopts hydraulic power, and the whole system has the risk of vulnerability, and a large amount of hydraulic oil will seep out during maintenance, and the previous linear motion is through dovetail structure, and the dovetail structure is difficult to machine, and finally manual shovel scraping is needed, which affects the processing efficiency and the use rate of space.

[0004] Therefore, aiming at the above-mentioned linear motion device for electric grinding wheel dresser lacks the function of small space occupation and high safety, the system relies on hydraulic power, needs to be equipped with large land occupation, redundant components hydraulic station and exposed pipeline, and the dovetail guide rail structure used simultaneously has complex machining process, needs manual shovel scraping, resulting in low production efficiency and insufficient space utilization, there are oil leakage risk and maintenance pollution problems, and a new linear motion device for electric grinding wheel dresser needs to be designed urgently. UTILITY MODEL CONTENTS

[0005] In order to overcome the common linear motion device for electric grinding wheel dresser, lack of small space occupation and high safety function, system relies on hydraulic power, needs to be equipped with large land occupation, redundant components hydraulic station and exposed pipeline, and the dovetail guide rail structure used simultaneously has complex machining process, needs manual shovel scraping, resulting in low production efficiency and insufficient space utilization, there are oil leakage risk and maintenance pollution problems.

[0006] The utility model discloses a technical scheme for a linear motion device for an electric grinding wheel dresser, comprising a grinding wheel dresser lower platform, a grinding wheel dresser upper platform, a wedge-shaped belt PJ, a motor fixing plate, a DC motor, a belt pulley, a screw bearing seat, a screw front seat, a limiting sleeve one, a screw pair, a screw nut mounting seat, an elastic retaining ring A for shaft, a limiting sleeve two and a linear rail pair. The right side of the grinding wheel dresser lower platform is provided with the DC motor, the right side of the DC motor is provided with the motor fixing plate, the output end of the right side of the DC motor is connected with the belt pulley through the motor fixing plate, the front and back ends of the left side of the top of the grinding wheel dresser lower platform are symmetrically provided with two linear rail pairs, the top of the slider on the two linear rail pairs is connected with the grinding wheel dresser upper platform, the right side of the top of the grinding wheel dresser lower platform is provided with the screw front seat, the right side of the screw front seat is provided with the screw bearing seat, the left side of the bottom of the grinding wheel dresser upper platform is provided with the screw nut mounting seat corresponding to the position of the screw bearing seat, the middle of the screw front seat and the screw nut mounting seat is provided with the screw pair, the left end of the screw pair is sleeved with the limiting sleeve two through the screw nut mounting seat, the left end of the screw pair is sleeved with the elastic retaining ring A for shaft corresponding to the position of the limiting sleeve two, the inner side of the screw front seat is provided with the limiting sleeve one, the right end of the screw pair is connected with the same belt pulley through the limiting sleeve one, the screw front seat and the screw bearing seat, and the outer side of the two belt pulleys is sleeved with the wedge-shaped belt PJ.

[0007] Preferably, the lower side belt pulley connected with the output end of the DC motor is driven to rotate by the DC motor, the lower side belt pulley drives the upper side belt pulley connected with the right end of the screw pair to rotate through the wedge-shaped belt PJ, the upper side belt pulley drives the screw pair to rotate, the grinding wheel dresser lower platform is driven to move linearly left and right through the reaction force of the screw pair and the screw nut mounting seat, the slider on the linear rail pair slides linearly left and right along the slide rail on the linear rail pair at this time, the electric grinding wheel dresser is driven to move linearly left and right by the grinding wheel dresser lower platform, realizing the functions of small occupied space and high safety, to solve the common linear motion device for the electric grinding wheel dresser, only containing the function of linear motion, can adjust the position of the electric grinding wheel dresser, but lacks the functions of small occupied space and high safety, cannot guarantee the processing efficiency and the use rate of space, and is prone to the problems that the linear motion of the previous grinding wheel dresser is through the movement of the oil cylinder piston rod, the power needs a hydraulic station, the hydraulic station occupies a place, the hydraulic station has many components, the hydraulic pipe connected from the hydraulic station to the oil cylinder not only occupies external space, but also affects the appearance, adopts hydraulic power, the whole system has the risk of vulnerability, and a large amount of hydraulic oil will seep out during maintenance, the linear motion of the previous one is through the dovetail structure, the dovetail structure has great machining difficulty, and finally manual scraping is needed, affecting the processing efficiency and the use rate of space.

[0008] As a preferred, the motor fixing plate is fixed with the DC motor through the inner hexagonal cylindrical head screw one, and the motor fixing plate is fixed with the grinding wheel dresser lower platform through the inner hexagonal cylindrical head screw two.

[0009] As preferred, the right side of the lower platform of the grinding wheel dresser is provided with a belt cover corresponding to the position of the wedge-shaped belt PJ, and the belt cover is fixed with the lower platform of the grinding wheel dresser through the internal hexagonal cylindrical head screw three.

[0010] As preferred, the right side of the top of the lower platform of the grinding wheel dresser is provided with two tension fixing blocks corresponding to the position of the wedge-shaped belt PJ, and the tension fixing blocks are fixed with the lower platform of the grinding wheel dresser through the same internal hexagonal cylindrical head screw one, the top of the tension fixing block is threadedly connected with the hexagonal head bolt full thread C level, and the hexagonal head bolt full thread C level is threadedly connected with the type hexagonal nut C level.

[0011] As preferred, the left and right sides of the upper part of the limiting sleeve one are symmetrically provided with two copper pads, and the limiting sleeve one is threadedly connected with the screw rod pair through the internal hexagonal flat end set screw after penetrating the copper pad.

[0012] As preferred, the top of the upper platform of the grinding wheel dresser is threadedly connected with a plurality of internal hexagonal cylindrical head screws four, the left side of the whole body of the screw rod pair is threadedly connected with six internal hexagonal cylindrical head screws five, and the left side of the whole body of the screw rod pair is fixed with the screw nut mounting seat through the internal hexagonal cylindrical head screw five.

[0013] As preferred, the linear rail pair is fixed with the lower platform of the grinding wheel dresser through the internal hexagonal cylindrical head screw six, and the front and rear sides of the upper platform of the grinding wheel dresser are symmetrically provided with four sliding block pressing blocks, and the sliding block pressing blocks are fixed with the upper platform of the grinding wheel dresser through the internal hexagonal cylindrical head screw seven.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The lower side pulley configured at the output shaft end of the direct current motor is coupled to the upper side pulley installed at the right end of the screw rod pair through the wedge-shaped belt PJ, the upper side pulley drives the ball screw pair to rotate through key connection, the rotation is converted into linear displacement through the screw transmission of the screw rod pair, simultaneously, the sliding block on the linear rail pair performs reciprocating motion along the hardened steel slide rail, the elastic buffering characteristics of the wedge-shaped belt PJ transmission structure effectively reduce the impact load, the movement precision of the grinding wheel dresser is maintained, and the equipment floor area is reduced and the operation risk index is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a linear motion device for electric grinding wheel dresser whole structure schematic diagram is shown.

[0017] Figure 2 The utility model discloses a linear motion device for electric grinding wheel dresser explosion structure schematic diagram is shown.

[0018] Figure 3The utility model discloses a linear motion device passive assembly structure schematic drawing for electric grinding wheel dresser is exhibited for the utility model discloses a linear motion device drive assembly structure schematic drawing for electric grinding wheel dresser.

[0019] Figure 4 The utility model discloses a linear motion device passive assembly structure schematic drawing for electric grinding wheel dresser is exhibited for the utility model discloses a linear motion device drive assembly structure schematic drawing for electric grinding wheel dresser.

[0020] Figure 5 The utility model discloses a linear motion device passive assembly structure schematic drawing for electric grinding wheel dresser is exhibited for the utility model discloses a linear motion device drive assembly structure schematic drawing for electric grinding wheel dresser.

[0021] Mark 1, the lower platform of grinding wheel dresser, 2, the upper platform of grinding wheel dresser, 3, the inner hexagonal cylindrical head screw one, 4, the inner hexagonal cylindrical head screw two, 5, the wedge-shaped belt PJ, 6, the inner hexagonal cylindrical head screw three, 7, the belt cover, 8, motor fixed plate, 9, tensioning fixed block, 10, one type hexagonal nut C level, 11, hexagonal head bolt full thread C level, 12, direct current motor, 13, belt pulley, 14, screw bearing seat, 15, screw front seat, 16, limit sleeve one, 17, copper pad, 18, inner hexagonal flat end locking screw, 19, inner hexagonal cylindrical head screw four, 20, screw pair, 21, inner hexagonal cylindrical head screw five, 22, inner hexagonal cylindrical head screw six, 23, sliding block pressing block, 24, inner hexagonal cylindrical head screw seven, 25, screw nut mounting seat, 26, elastic check ring A type for shaft, 27, limit sleeve two, 28, linear rail pair. DETAILED DESCRIPTION

[0022] The utility model will be further explained below in connection with the drawings and examples.

[0023] Please refer to Figures 1-5The utility model provides a kind of embodiment: a linear motion device for electric grinding wheel dresser, including grinding wheel dresser lower platform 1, grinding wheel dresser upper platform 2, wedge belt PJ5, motor fixed plate 8, DC motor 12, belt pulley 13, screw bearing seat 14, screw front seat 15, limit sleeve one 16, screw pair 20, screw nut mounting seat 25, elastic baffle ring A type 26 for shaft, limit sleeve two 27 and linear rail pair 28, the right side of grinding wheel dresser lower platform 1 is provided with DC motor 12, the right side of DC motor 12 is provided with motor fixed plate 8, the output end of DC motor 12 right side is connected with belt pulley 13 and is penetrated through motor fixed plate 8, the top of two linear rail pairs 28 is symmetrically provided at the left side of grinding wheel dresser lower platform 1 top, the top of slider on two linear rail pairs 28 is connected with grinding wheel dresser upper platform 2, the right side of grinding wheel dresser lower platform 1 top is provided with screw front seat 15, the right side of screw front seat 15 is provided with screw bearing seat 14, the left side of screw nut mounting seat 25 is provided with screw bearing seat 14 at the position of grinding wheel dresser upper platform 2 bottom, the middle of screw front seat 15 and screw nut mounting seat 25 is provided with screw pair 20, the left end of screw pair 20 is equipped with limit sleeve two 27 and is penetrated through screw nut mounting seat 25, the left end of screw pair 20 is equipped with elastic baffle ring A type 26 and is penetrated through limit sleeve two 27, the inside of screw front seat 15 is provided with limit sleeve one 16, the right end of screw pair 20 is connected with identical belt pulley 13 and is penetrated through limit sleeve one 16, screw front seat 15 and screw bearing seat 14, the outside of two belt pulleys 13 is equipped with wedge belt PJ5, drive downside belt pulley 13 by DC motor 12 output shaft end, downside belt pulley 13 drives wedge belt PJ5 rotation, and rotating kinetic energy is transmitted to upside belt pulley 13 assembled in the right end of screw pair 20, upside belt pulley 13 drives screw pair 20, and rotating motion is converted into axial linear displacement by the force coupling effect of screw pair 20, linear rail pair 28 is equipped with slider in synchronous operation, carries out smooth guidance on carburizing hard rail, improves linear repeat positioning accuracy, and the whole mechatronic structure reduces longitudinal space utilization by compact cavity design, ensures that the movement track accuracy of grinding wheel dresser, while making equipment floor area reduction, maintenance cycle extension, and completely avoiding the risk of pressure oil leakage of traditional hydraulic drive system and the manual scraping maintenance required by dovetail guide rail every quarter, finally realizes the dual-technical breakthrough of processing efficiency improvement and safety accident rate zero.

[0024] Please refer to Figures 2-5In the embodiment, the motor fixing plate 8 is fixed with the DC motor 12 through the inner hexagonal cylindrical head screw No. 3, and is fixed with the grinding wheel dresser lower platform 1 through the inner hexagonal cylindrical head screw No. 4. The lower side pulley 13 connected with the output end of the DC motor 12 is driven to rotate by the DC motor 12. The right side of the grinding wheel dresser lower platform 1 is provided with the belt housing 7 corresponding to the position of the wedge belt PJ5. The belt housing 7 is fixed with the grinding wheel dresser lower platform 1 through the inner hexagonal cylindrical head screw No. 3. The wedge belt PJ5 is covered and sealed by the belt housing 7. The right side of the top of the grinding wheel dresser lower platform 1 is provided with two tension fixing blocks 9 corresponding to the position of the wedge belt PJ5. The tension fixing blocks 9 are fixed with the grinding wheel dresser lower platform 1 through the same inner hexagonal cylindrical head screw No. 3. The top of the tension fixing block 9 is threadedly connected with the hexagonal head bolt full thread C class 11. The whole body of the hexagonal head bolt full thread C class 11 is threadedly connected with the hexagonal nut C class 10. The two tension fixing blocks 9 are in contact with the wedge belt PJ5, so that the tension of the wedge belt PJ5 is maintained.

[0025] Please refer to Figures 1-5 In the embodiment, the left and right sides of the upper part of the limiting sleeve No. 1 16 are symmetrically provided with two copper pads 17. The limiting sleeve No. 1 16 is threadedly connected with the screw rod pair 20 after penetrating the copper pads 17 through the inner hexagonal flat end set screw 18. The limiting sleeve No. 1 16 rotates with the screw rod pair 20. The top of the grinding wheel dresser upper platform 2 is threadedly connected with a plurality of inner hexagonal cylindrical head screw No. 4 19. The left side of the whole body of the screw rod pair 20 is threadedly connected with six inner hexagonal cylindrical head screw No. 5 21. The left side of the whole body of the screw rod pair 20 is fixed with the screw rod nut mounting seat 25 through the inner hexagonal cylindrical head screw No. 5 21. The upper side pulley 13 drives the screw rod pair 20 to rotate. The grinding wheel dresser lower platform 1 moves linearly left and right through the reaction force of the screw rod pair 20 and the screw rod nut mounting seat 25 threadedly connected with each other. The linear rail pair 28 is fixed with the grinding wheel dresser lower platform 1 through the inner hexagonal cylindrical head screw No. 6 22. The front and rear sides of the grinding wheel dresser upper platform 2 are symmetrically provided with four sliding block pressing blocks 23. The sliding block pressing blocks 23 are fixed with the grinding wheel dresser upper platform 2 through the inner hexagonal cylindrical head screw No. 7 24. The electric grinding wheel dresser moves linearly left and right driven by the grinding wheel dresser lower platform 1.

[0026] When working, the lower side pulley 13 is driven to rotate by the DC motor 12. The upper side pulley 13 at the right end of the screw rod pair 20 is linked with the wedge belt PJ5, so that the screw rod pair 20 rotates synchronously. When the screw rod rotates, the reaction force is generated between the screw rod and the screw rod nut mounting seat 25, which pushes the grinding wheel dresser lower platform 1 to move horizontally along the linear rail pair 28. The guide rail block moves synchronously along the slide rail accurately, finally drives the electric grinding wheel dresser to perform stable linear reciprocating motion, realizes compact transmission structure and safe and controllable operation process.

[0027] Through the above steps, the direct current motor 12 drives the lower pulley 13 to drive the upper pulley 13 at the right end of the wedge belt PJ5 linkage screw pair 20. When the screw rotates, the screw nut mounting seat 25 generates a threaded reaction force, drives the grinding wheel dresser lower platform 1 to perform linear reciprocating motion along the linear rail pair 28, and the integrated belt drive and ball screw structure compresses the system axial space by 40%. The full-closed protection design reduces the mechanical exposure risk by 70%, realizes high-precision dressing and compact and safe double-effect cooperation, and solves the problem that the traditional electric grinding wheel dresser linear motion device relies on a hydraulic drive system, has a large equipment size, has a risk of hydraulic oil leakage, and the dovetail guide rail needs to be precisely scraped, resulting in complex maintenance and low space utilization.

Claims

1. A linear motion device for an electric grinding wheel dresser, comprising a grinding wheel dresser lower platform (1); characterized in that: The grinder trimmer upper platform (2), the wedge-shaped belt PJ (5), the motor fixing plate (8), the direct current motor (12), the belt pulley (13), the screw bearing seat (14), the screw front seat (15), the limiting sleeve one (16), the screw pair (20), the screw nut mounting seat (25), the elastic retainer ring A (26), the limiting sleeve two (27) and the linear rail pair (28) are further included, the right side of the grinder trimmer lower platform (1) is provided with the direct current motor (12), the right side of the direct current motor (12) is provided with the motor fixing plate (8), the output end of the right side of the direct current motor (12) is connected with the belt pulley (13) penetrating the motor fixing plate (8), the front and back two ends of the top left side of the grinder trimmer lower platform (1) are symmetrically provided with two linear rail pairs (28), the top of the slider on the two linear rail pairs (28) is connected with the grinder trimmer upper platform (2), the right side of the top of the grinder trimmer lower platform (1) is provided with the screw front seat (15), the right side of the screw front seat (15) is provided with the screw bearing seat (14), the left side of the bottom of the grinder trimmer upper platform (2) is provided with the screw nut mounting seat (25) corresponding to the position of the screw bearing seat (14), the middle of the screw front seat (15) and the screw nut mounting seat (25) is provided with the screw pair (20), the left end of the screw pair (20) is sleeved with the limiting sleeve two (27) penetrating the screw nut mounting seat (25), the left end of the screw pair (20) is sleeved with the elastic retainer ring A (26) corresponding to the position of the limiting sleeve two (27), the inner side of the screw front seat (15) is provided with the limiting sleeve one (16), the right end of the screw pair (20) is connected with the same belt pulley (13) penetrating the limiting sleeve one (16), the screw front seat (15) and the screw bearing seat (14), the outer side of the two belt pulleys (13) is sleeved with the wedge-shaped belt PJ (5).

2. A linear motion device for an electric grinding wheel dresser according to claim 1, characterized in that: The motor fixing plate (8) is fixed with the direct current motor (12) through the inner hexagonal cylindrical head screw one (3), and the motor fixing plate (8) is fixed with the grinder trimmer lower platform (1) through the inner hexagonal cylindrical head screw two (4).

3. The linear motion device for an electric grinder dresser according to claim 1, wherein: The right side of the grinder trimmer lower platform (1) is provided with the belt housing (7) corresponding to the position of the wedge-shaped belt PJ (5), and the belt housing (7) is fixed with the grinder trimmer lower platform (1) through the inner hexagonal cylindrical head screw three (6).

4. The linear motion device for an electric grinder dresser according to claim 1, wherein: The right side of the top of the grinder trimmer lower platform (1) is provided with two tension fixing blocks (9) corresponding to the position of the wedge-shaped belt PJ (5), the tension fixing blocks (9) are fixed with the grinder trimmer lower platform (1) through the same inner hexagonal cylindrical head screw one (3), the top of the tension fixing block (9) is threadedly connected with the hexagonal head bolt full thread C level (11), and the hexagonal head bolt full thread C level (11) is threadedly connected with the one type hexagonal nut C level (10) around the body.

5. The linear motion device for an electric grinder dresser according to claim 1, wherein: Two copper pads (17) are symmetrically arranged on the left and right sides of the upper part of the limiting sleeve one (16), and the limiting sleeve one (16) is threadedly connected with the screw pair (20) after penetrating the copper pad (17) through the inner hexagonal flat end set screw (18).

6. The linear motion device for an electric grinder dresser according to claim 1, wherein: The top of the upper platform (2) of the grinding wheel dresser is threadedly connected with four hexagonal head screws (19), and the left side of the body of the screw rod pair (20) is threadedly connected with six hexagonal head screws (21) on the shaft connecting seat, and the shaft connecting seat on the left side of the body of the screw rod pair (20) is fixed with the screw rod nut mounting seat (25) through the hexagonal head screws (21).

7. The linear motion device for an electric grinder dresser according to claim 1, wherein: The linear rail pair (28) is fixed with the lower platform (1) of the grinding wheel dresser through hexagonal head screws (22), and the upper platform (2) of the grinding wheel dresser is symmetrically provided with four sliding block pressing blocks (23) on the front and rear sides, and the sliding block pressing blocks (23) are fixed with the upper platform (2) of the grinding wheel dresser through hexagonal head screws (24).

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