Grinding wheel production positioning mechanism

Abstract

The utility model discloses a grinding wheel production positioning mechanism, and relates to the technical field of grinding wheel production, the grinding wheel production positioning mechanism comprises a base, the base is provided with a positioning mechanism, the positioning mechanism comprises a rotating assembly, and the rotating assembly comprises a motor, a driving gear and a large gear ring; and the fixing assembly is installed at the top end of the large gear ring and used for fixing and positioning the grinding wheel, and the fixing assembly can be driven to rotate through the rotating assembly. According to the grinding wheel production positioning mechanism, the electric push rod stretches out and draws back according to instructions of the controller, when the electric push rod stretches out, the connecting shaft rod pushes the lifting block to ascend to fix the grinding wheel, in the process, counter-acting force generated by the electric push rod is transmitted to the pressure sensor through the mounting frame, and the pressure sensor monitors pressure in real time and feeds back signals to the controller; and the controller accurately controls the stroke of the electric push rod, so that the pressing force of the fixing assembly on the grinding wheel is accurately controlled, and the situation that the grinding wheel is damaged due to too large pressing force or is not firmly fixed due to too small pressing force is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a grinding wheel production technical field, concretely is a grinding wheel production positioning mechanism. BACKGROUND

[0002] Grinding wheel is also called consolidated abrasive, and the grinding wheel is consolidated abrasive that ordinary abrasive is consolidated into certain shape by binder and has certain strength, and it is generally composed of abrasive, binder and pore, and the three parts are often called three elements of consolidated abrasive, and according to the different classification of binder, the common ones are ceramic grinding wheel, resin grinding wheel and rubber grinding wheel.

[0003] In the prior art, such as the patent with the publication number CN218658515U, a positioning mechanism for grinding wheel production is disclosed, which comprises a detection table, the detection table is provided with a dial indicator, one side of the detection table is provided with a positioning mechanism, the positioning mechanism comprises a moving seat, a rotating seat is rotatably connected to the upper end of the moving seat through a bearing, the rotating seat is provided with a fixing assembly at the upper end, the fixing assembly comprises a driving chamber arranged in the rotating seat, a first motor is arranged in the driving chamber, the driving end of the first motor is provided with a rotating disc, the rotating disc is provided with a screw thread, the moving blocks are symmetrically connected to the screw thread, the moving blocks are slidably connected with guide rods, the guide rods are fixedly connected with the rotating seat at both ends, the rotating seat is inwardly recessed to form a movable groove matched with the moving blocks, the guide rods and the rotating disc, the upper end of each moving block is provided with a fixing block, the rotating seat is provided with a rotating assembly, the rotating assembly comprises a toothed belt arranged on the outer side of the rotating seat, which is convenient for fixing and positioning grinding wheels of different sizes, and the slope is arranged to make the grinding wheel more stable, thereby guaranteeing the use effect of the positioning mechanism.

[0004] In the above-mentioned patent, the device is fixed and positioned by four fixing blocks in the fixing assembly moving outward, and then the rotating assembly drives the fixing assembly to rotate, and cooperates with the dial indicator on the detection table to detect the roundness of the grinding wheel. However, when the four fixing blocks move outward to apply pressure to the grinding wheel, the pressing force cannot be accurately controlled, which may cause the grinding wheel to be excessively pressed and damaged. Therefore, the utility model provides a grinding wheel production positioning mechanism. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a grinding wheel production positioning mechanism, which solves the problem that the pressing force cannot be accurately controlled when the four fixing blocks move outward to apply pressure to the grinding wheel, which may cause the grinding wheel to be excessively pressed and damaged.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a grinding wheel production positioning mechanism, comprising a base, the base is provided with a positioning mechanism, the positioning mechanism comprises:

[0007] A rotating assembly, the rotating assembly comprises a motor, a driving gear and a large gear ring;

[0008] The fixing assembly is installed at the top end of the large gear ring, and is used for fixing and positioning the grinding wheel.

[0009] The lifting assembly is arranged below the fixing assembly, and is used for driving the fixing assembly to fix or loosen the grinding wheel.

[0010] Preferably, the top surface of the base is provided with a plurality of vertical columns near the edge, and a fixing plate is arranged between the end surfaces of the vertical columns.

[0011] Preferably, the motor is installed at the bottom of the fixing plate near the edge, and the output shaft of the motor is movably arranged through the bottom of the fixing plate and extends upward.

[0012] Preferably, the lifting block is provided with a connecting rod around the surface, and the connecting rod is rotatably arranged on the surface.

[0013] Preferably, the bottom surface of the rectangular seat is provided with an arc-shaped sliding block, and a plurality of rolling balls are movably arranged in the inner wall of the arc-shaped sliding block.

[0014] Preferably, the two side surfaces of the arc-shaped sliding block are provided with arc-shaped brush plates.

[0015] Beneficial effects

[0016] The sand wheel production positioning mechanism has the following beneficial effects compared with the prior art:

[0017] (1), the grinding wheel production positioning mechanism, the electric push rod is telescopic according to the controller instruction, when elongation, the connecting shaft rod promotes the lifting block to rise and fixes the grinding wheel, the reaction force generated by the electric push rod in this process is transmitted to the pressure sensor through the mounting bracket, the pressure sensor monitors the pressure in real time and feeds back the signal to the controller, the controller controls the stroke of the electric push rod accurately, so that the pressing force of the fixing assembly on the grinding wheel is accurately controlled, so as to prevent the grinding wheel from being damaged due to excessive pressing force or not being fixed firmly due to small pressing force.

[0018] (2), the grinding wheel production positioning mechanism, when the arc-shaped sliding block slides on the slide rail, the ball is between the arc-shaped sliding block and the slide rail, the sliding friction between the two is converted into rolling friction, which greatly reduces the friction. This makes the rectangular seat move more smoothly, reduces the energy loss of the lifting assembly operation, improves the pressure monitoring accuracy and reliability, and the arc-shaped brush plate is in close contact with the surface of the slide rail, which can timely remove the dust and other impurities that may be contaminated on the surface of the slide rail, effectively maintain the cleanliness of the slide rail, and ensure the good sliding fit between the arc-shaped sliding block and the slide rail. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional appearance schematic view of the utility model;

[0020] Figure 2 It is a three-dimensional appearance schematic view of the rotating assembly of the utility model;

[0021] Figure 3 It is a three-dimensional appearance schematic view of the fixing assembly of the utility model;

[0022] Figure 4 It is a three-dimensional appearance schematic view of the lifting assembly of the utility model.

[0023] In the drawing: 1, base; 11, stand; 12, fixed plate; 13, shield; 14, avoiding notch; 2, rotating assembly; 21, motor; 22, driving gear; 23, large gear ring; 3, fixing assembly; 31, lifting block; 32, circular hole; 33, connecting rod; 34, rectangular seat; 35, placing plate; 36, fixed column; 37, arc-shaped sliding block; 38, ball; 39, slide rail; 310, arc-shaped brush plate; 4, lifting assembly; 41, mounting bracket; 42, electric push rod; 43, connecting shaft rod; 44, pressure sensor; 5, controller. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] The utility model provides two technical schemes:

[0026] Figures 1-4 The first embodiment is shown: a grinding wheel production positioning mechanism, including base 1, be equipped with positioning mechanism on base 1, and positioning mechanism includes:

[0027] Rotary assembly 2, rotary assembly 2 includes motor 21, driving gear 22 and big gear ring 23;

[0028] Fixed assembly 3, fixed assembly 3 is installed at the top of big gear ring 23, is used for fixing and positioning grinding wheel, can drive fixed assembly 3 to rotate by rotary assembly 2, and fixed assembly 3 includes lifting block 31, and the round hole 32 is passed through and set up on lifting block 31;

[0029] Lifting assembly 4 is set up below fixed assembly 3, is used for driving fixed assembly 3 to fix or loosen action to grinding wheel, and fixed assembly 3 can rotate relative to lifting assembly 4, and lifting assembly 4 includes mounting bracket 41, and pressure sensor 44 is installed on the bottom surface of mounting bracket 41, and pressure sensor 44 is fixed on the top surface of base 1, and electric push rod 42 is installed on the inner top surface of mounting bracket 41, and the output end of electric push rod 42 is slidably penetrated through the inner top surface of electric push rod 42 and extends upwards, and connecting shaft 43 is installed on the telescopic end of electric push rod 42, and connecting shaft 43 is rotatably arranged in the round hole 32.

[0030] Specifically, electric push rod 42 telescopes according to the instruction of controller 5, when elongating, connecting shaft 43 pushes lifting block 31 to ascend and fix grinding wheel, and the reaction force generated by electric push rod 42 is transmitted to pressure sensor 44 through mounting bracket 41 in this process, and pressure sensor 44 monitors pressure in real time and feeds back signal to controller 5, and controller 5 controls the stroke of electric push rod 42 accurately accordingly, so as to accurately control the pressing force of fixed assembly 3 to grinding wheel, prevent grinding wheel from being damaged due to excessive pressing force or not fixed firmly due to small pressing force, and the rotation design of connecting shaft 43 in the round hole 32 ensures that lifting block 31 in fixed assembly 3 does not interfere with each other in lifting and rotating action.

[0031] In the embodiment, a plurality of stands 11 are installed on the top surface of base 1 close to the edge, a plurality of stands 11 are installed between the end faces of fixed plate 12, fixed plate 12 is installed on the end face of shroud 13, a plurality of avoiding notches 14 are passed through and set up on the end face of shroud 13, controller 5 is arranged on the top of shroud 13, and controller 5 is electrically connected with electric push rod 42 and pressure sensor 44.

[0032] Specifically, the shield 13 can effectively block the foreign matter such as dust from the outside into the inside, and protect the structural members such as the driving gear 22, the gear ring 23 and the slide rail 39, thereby prolonging the service life. The avoiding slot 14 on the shield 13 reserves the moving space for the moving components such as the connecting rod 33 and the rectangular seat 34, thereby avoiding the interference. The controller 5 serves as the hub, receives the signal of the pressure sensor 44 and controls the action of the electric push rod 42 according to the signal, thereby realizing the automatic and accurate operation of the whole positioning mechanism.

[0033] In the embodiment, the motor 21 is installed at the position close to the edge on the bottom of the fixed plate 12. The output shaft end of the motor 21 is movably penetrated through the bottom of the fixed plate 12 and extends upward. The output end of the motor 21 is fixedly connected with the end surface of the driving gear 22. The gear ring 23 is rotatably installed on the top end of the fixed plate 12 through the plane bearing, and is engaged with the driving gear 22.

[0034] Specifically, after the motor 21 is started, the power is transmitted to the driving gear 22 through the output shaft, and the gear ring 23 engaged with the driving gear 22 is driven to rotate. The gear ring 23 is stably rotated at the top end of the fixed plate 12 by means of the plane bearing. The plane bearing bears the weight of the gear ring 23 and greatly reduces the rotating friction, thereby ensuring the stability and accuracy of the rotation of the gear ring 23 for driving the fixed assembly 3 to rotate, which is beneficial to the grinding wheel roundness detection.

[0035] In the embodiment, the lifting block 31 is rotatably provided with the connecting rod 33 around the surface. The connecting rod 33 is rotatably provided with the rectangular seat 34 on the surface. The rectangular seat 34 is located inside the avoiding slot 14. The rectangular seat 34 is provided with the placement plate 35 on the top surface. The placement plate 35 is symmetrically provided with the fixed column 36 on the top surface.

[0036] Specifically, when the lifting block 31 is lifted under the action of the electric push rod 42, the vertical lifting movement of the lifting block 31 is converted into the horizontal outward movement of the rectangular seat 34 through the rotating connection structure of the connecting rod 33 and the rectangular seat 34. The placement plate 35 and the fixed column 36 move outward, thereby accurately fixing and positioning the grinding wheel placed thereon. The rectangular seat 34 is located inside the avoiding slot 14, thereby ensuring that the movement process is not hindered by the shield 13 and the fixing action is smoothly completed.

[0037] Figures 1-4 The second embodiment is shown. The main difference from the first embodiment is that the arc-shaped sliding block 37 is installed on the bottom surface of the rectangular seat 34. The arc-shaped sliding block 37 is movably embedded with a plurality of rolling balls 38 on the inner wall. The arc-shaped sliding block 37 is provided with the slide rail 39 inside. The surface of the slide rail 39 is in contact with the rolling balls 38. The slide rail 39 is fixed on the top end of the gear ring 23.

[0038] Specifically, when the arc-shaped slider 37 slides on the slide rail 39, the ball bearings 38 are interposed between the arc-shaped slider 37 and the slide rail 39, converting the sliding friction between the two into rolling friction, greatly reducing the friction. This makes the rectangular seat 34 move more smoothly, reducing the energy loss of the lifting assembly 4 operation, improving the accuracy and reliability of the pressure monitoring.

[0039] In this embodiment, the arc-shaped slider 37 is provided with arc-shaped brush plates 310 on both sides, and the inner side of the arc-shaped brush plate 310 is in contact with the surface of the slide rail 39.

[0040] Specifically, when the arc-shaped slider 37 slides on the slide rail 39, the arc-shaped brush plate 310 is in close contact with the surface of the slide rail 39, which timely removes dust and other impurities that may be contaminated on the surface of the slide rail 39, effectively maintaining the cleanliness of the slide rail 39, and ensuring the good sliding fit between the arc-shaped slider 37 and the slide rail 39.

[0041] Meanwhile, the contents not described in detail in the specification are all prior art known to those skilled in the art.

[0042] When working, the grinding wheel is sleeved on the fixed column 36 outside and placed on the placement plate 35, then the electric push rod 42 is started to push the lifting block 31 up through the connecting shaft 43, due to the rotating connection relationship between the connecting rod 33 and the rectangular seat 34, the lifting block 31 drives the connecting rod 33 to move during the lifting process, and then the rectangular seat 34 moves outward with the placement plate 35 and the fixed column 36, realizing the fixation and positioning of the grinding wheel. In this process, the electric push rod 42 drives the connecting shaft 43 to rise, driving the fixed assembly 3 to fix the grinding wheel, and the electric push rod 42 will generate a downward force, which will act on the pressure sensor 44 through the mounting bracket 41. The pressure sensor 44 monitors the pressure applied by the electric push rod 42 in real time and transmits the signal to the controller 5. When the pressure reaches the preset value, the controller 5 controls the electric push rod 42 to stop working, so as to accurately control the pressing force of the grinding wheel and avoid excessive pressure on the grinding wheel.

[0043] After the fixation is completed, the motor 21 is started to drive the driving gear 22 to rotate, the driving gear 22 is engaged with the large gear ring 23, the large gear ring 23 is rotated, and then the fixed assembly 3 is rotated as a whole. At this time, the fixed assembly 3 can rotate relative to the lifting assembly 4 through the cooperation of the circular hole 32 in the lifting block 31 and the connecting shaft 43, and then the detection device (such as the detection table and the dial gauge in the background art) is used to detect the roundness of the grinding wheel.

[0044] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0045] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A grinding wheel production positioning mechanism comprising a base (1), characterized in that: The base (1) is provided with a positioning mechanism, the positioning mechanism comprises: Rotary assembly (2), the rotary assembly (2) includes motor (21), driving gear (22) and big gear ring (23); Fixed assembly (3), the fixed assembly (3) is installed at the top of big gear ring (23), for fixing and positioning the grinding wheel, the fixed assembly (3) can be driven to rotate by rotary assembly (2), the fixed assembly (3) includes lifting block (31), the lifting block (31) is provided with a circular hole (32) through the top surface; Lifting assembly (4) is arranged below the fixed assembly (3), for driving the fixed assembly (3) to fix or loosen the grinding wheel, and the fixed assembly (3) can rotate relative to the lifting assembly (4), the lifting assembly (4) includes mounting frame (41), the bottom surface of the mounting frame (41) is provided with pressure sensor (44), and the pressure sensor (44) is fixed on the top surface of the base (1), the inner top surface of the mounting frame (41) is provided with electric push rod (42), the output end of the electric push rod (42) is slidably connected with the inner top surface of the electric push rod (42) and extends upward, the telescopic end of the electric push rod (42) is provided with connecting shaft (43), and the connecting shaft (43) is rotatably arranged in the circular hole (32).

2. The positioning mechanism for grinding wheel production according to claim 1, characterized in that: The top surface of the base (1) is provided with a plurality of vertical columns (11) near the edge, a plurality of the vertical columns (11) are provided with a fixed plate (12) between the end surfaces, the end surface of the fixed plate (12) is provided with a shroud (13), the end surface of the shroud (13) is provided with a plurality of avoiding notches (14), the top of the shroud (13) is provided with a controller (5), and the controller (5) is electrically connected with the electric push rod (42) and the pressure sensor (44).

3. The positioning mechanism for grinding wheel production according to claim 2, characterized in that: The motor (21) is installed at the edge of the bottom of the fixed plate (12), the output shaft end of the motor (21) is movably connected with the bottom of the fixed plate (12) and extends upward, and the output end of the motor (21) is fixedly connected with the end surface of the driving gear (22), the big gear ring (23) is rotatably installed at the top of the fixed plate (12) through the plane bearing, and the big gear ring (23) is engaged with the driving gear (22).

4. The positioning mechanism for grinding wheel production according to claim 2, characterized in that: The circumferential surface of the lifting block (31) is rotatably provided with a connecting rod (33), the surface of the connecting rod (33) is rotatably provided with a rectangular seat (34), and the rectangular seat (34) is located inside the avoiding notch (14), the top surface of the rectangular seat (34) is provided with a placing plate (35), and the top surface of the placing plate (35) is symmetrically provided with a fixed column (36).

5. The positioning mechanism for grinding wheel production according to claim 4, characterized in that: The bottom surface of the rectangular seat (34) is provided with an arc-shaped sliding block (37), a plurality of rolling balls (38) are movably embedded in the inner wall of the arc-shaped sliding block (37), the arc-shaped sliding block (37) is provided with a slide rail (39) inside, and the surface of the slide rail (39) is in contact with the rolling balls (38), and the slide rail (39) is fixed on the top of the big gear ring (23).

6. The positioning mechanism for grinding wheel production according to claim 5, characterized in that: The both side surfaces of the arc-shaped sliding block (37) are provided with arc-shaped brush plates (310), and the inner side of the arc-shaped brush plate (310) is in contact with the surface of the slide rail (39).

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