Processing tool structure of double-end surface grinder

Abstract

The application provides a machining tool structure of a double-end-face grinding machine, which comprises a mounting seat, a rotating disc provided rotatably on the mounting seat and provided with a plurality of mounting stations, and a fixing seat movably provided on the mounting station, the rotating disc is located between double grinding tools, and the machining tool structure further comprises: a moving unit, which comprises a moving piece slidably provided on the mounting station and a supporting frame fixedly provided on the mounting seat, the fixing seat is provided with an adjusting groove forming an included angle with the height direction of the fixing seat, the moving piece is slidably provided in the adjusting groove, the supporting frame is provided with a pressing part, and a fixing unit, which comprises two fixing plates rotatably provided at one end of the fixing seat and an adjusting piece in transmission connection with the two fixing plates, is used for making the two fixing plates form a plane or an included angle. Through extrusion type fixing of the moving unit, the position of the moving piece on the supporting frame can be adjusted, different sizes of workpieces can be conveniently pressed and fixed, the angle between the two fixing plates can be adjusted through the adjusting piece, and different workpieces can be conveniently pressed and fixed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of double-end surface grinding machine tooling, in particular to a machining tooling structure of a double-end surface grinding machine. BACKGROUND

[0002] A double-end surface grinding machine is a high-efficiency planar machining machine tool that simultaneously grinds two parallel end surfaces in one machining process. According to the structure, it can be divided into horizontal and vertical types, and according to the feeding mode, it can be divided into through type, rotary table type, and reciprocating type. At present, when processing workpieces made of neodymium iron boron material, due to the characteristics of neodymium iron boron, high-frequency vibration cannot be used for feeding, so manual feeding is generally used. In order to facilitate feeding of the workpiece, the size of the work station in the rotary table used for processing is generally larger than the workpiece, so as to facilitate feeding. However, after the workpiece is placed in the work station, due to the gap between the workpiece and the work station, when the rotary table carrying the workpiece moves to the double grinding tool, the workpiece is easy to vibrate, and since the workpiece made of neodymium iron boron material is brittle, it is easy to be damaged when vibrating, and the yield is not high.

[0003] In view of the above problems, the patent "CN217513523U" discloses "a feeding rotary table applied to a double-end surface grinding machine". The pressing assembly of the rotary table is telescopic along the width direction of the mounting groove, so that the width of the workpiece positioning channel is adjustable, which is used to realize clamping or releasing of the workpiece, can ensure the positioning stability during the workpiece transfer process, and the clamping and positioning control of the workpiece is stable, without manual participation, thereby effectively improving the precision and processing efficiency of the workpiece grinding process.

[0004] However, in use, it is found that the pressing block and the positioning plate are both plate structures, which can meet the fixing of rectangular workpieces to a certain extent, but for arc-shaped workpieces (such as cylindrical workpieces), the plate structure is in line contact with the arc-shaped workpiece, which is easy to deviate during polishing, and cannot meet the stable fixing, and the universality is not high. Secondly, when fixing workpieces of different sizes (diameters), it is necessary to disassemble and install the bolts one by one to replace the positioning plate, which is relatively troublesome to operate. SUMMARY

[0005] In view of the deficiencies in the prior art, the present application provides a machining tooling structure of a double-end surface grinding machine, which solves the problems of low universality of the pressing block and inconvenience of fixing workpieces of different sizes in the prior art.

[0006] According to an embodiment of the present application, the machining tooling structure of the double-end surface grinding machine comprises a mounting seat, a rotary table rotatably arranged on the mounting seat and provided with a plurality of mounting stations, and a fixing seat movably arranged in the mounting station, the rotary table is located between the double grinding tools, and the machining tooling structure further comprises:

[0007] The activity unit comprises a movable part slidingly arranged on the mounting station and a supporting frame fixedly arranged on the mounting base, the mounting base is provided with an adjusting groove forming an included angle with the height direction of the mounting base, the movable part slidingly passes through the adjusting groove, the supporting frame is provided with a pressing part, and when the movable part abuts against the pressing part, the movable part moves along a first direction, so that the mounting base moves along a second direction perpendicular to the first direction.

[0008] The fixed unit comprises two fixed plates rotatingly arranged at one end of the mounting base and an adjusting part in transmission connection with the two fixed plates, and is used for making the two fixed plates form a plane or an included angle.

[0009] Preferably, the movable part comprises:

[0010] The adjusting base is provided with a pressing rod, the pressing rod slidingly passes through the adjusting groove, one side of the opening of the mounting station is provided with a mounting block, and the adjusting base slidingly connects with the mounting block;

[0011] A spring is arranged in the adjusting base and abuts between the inner side of the adjusting base and the mounting block.

[0012] Preferably, the adjusting part comprises:

[0013] A fixed part is arranged at one end of the mounting base and forms a cavity in the interior thereof;

[0014] Two gears are respectively arranged on the rotating shafts of the two fixed plates and are in meshing engagement;

[0015] A worm wheel is arranged on the rotating shaft of one of the fixed plates; and

[0016] A worm is arranged in the fixed part and extends into the cavity and is in meshing engagement with the worm wheel.

[0017] Preferably, the top of the adjusting base is provided with a guide wheel, and the guide wheel abuts against the pressing part.

[0018] Preferably, the pressing part is in a stepped or inclined shape, the top surface of the adjusting base is provided with a mounting groove, the guide wheel slidingly connects with the mounting groove, a screw rod is arranged in the mounting groove and is in threaded connection with the guide wheel.

[0019] Preferably, the two end portions of the pressing part are provided with guide inclined surfaces.

[0020] Preferably, the bottom end of the mounting station and the inner side of the mounting block are provided with limiting grooves, the top surface and the bottom surface of the mounting base are provided with cylindrical bearings, and the plurality of cylindrical bearings are respectively in rolling abutment with the limiting grooves.

[0021] Preferably, the side surface of the mounting station is provided with a positioning hole, and one end of the mounting base is provided with a positioning rod passing through the positioning hole.

[0022] Preferably, a roller is arranged on the pressing rod and is in rolling abutment with the inner side surface of the adjusting groove.

[0023] Preferably, two limiting blocks are arranged in the cavity, and the two fixing plates abut on the two limiting blocks when the two fixing plates form a plane.

[0024] Compared with the prior art, the present application has the following beneficial effects:

[0025] Under the action of the moving unit, the workpiece is placed on the mounting station through the cooperation of the moving part and the support frame, and when the rotating disc rotates, the moving part makes a circular motion along the edge of the rotating disc, so that the moving part abuts on the support frame, the moving part is extruded to move in the first direction, so that the other end of the moving part slides in the adjusting groove and extrudes the fixed seat, so that the fixed seat moves in the second direction perpendicular to the first direction, so that the fixed seat automatically presses and fixes the workpiece in the mounting station, ensuring the stability of the workpiece during processing; secondly, through the extrusion type fixing of the moving unit, the position of the moving part on the support frame can be adjusted, so as to change the displacement of the moving part caused by extrusion, and then control the distance of the second direction displacement of the fixed seat, so as to facilitate the pressing and fixing of workpieces of different sizes; thirdly, under the cooperation of the fixing unit, the angle between the two fixing plates can be adjusted through the adjusting part, when the rectangular workpiece is pressed and fixed, the two fixing plates can be adjusted to form a plane through the adjusting part, when the cylindrical workpiece is clamped, the two fixing plates are adjusted to form an included angle through the adjusting part, and the formed included angle is clamped on the cylindrical workpiece through the movement of the fixed seat, which increases the contact area between the cylindrical workpiece and the fixed seat, ensures the stability of the fixing, and improves the versatility, facilitating the pressing and fixing of different workpieces. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a three-dimensional structure schematic diagram of the embodiment of the present application.

[0027] Figure 2 It is a planar structure schematic diagram of the rotating disc in the embodiment of the present application.

[0028] Figure 3 It is Figure 2 It is an enlarged structure schematic diagram of the A area.

[0029] Figure 4 It is an exploded structure schematic diagram of the extrusion rod and the adjusting groove, and the guide wheel and the screw in the embodiment of the present application.

[0030] Figure 5 It is a cross-sectional structure schematic diagram of the fixed part in the embodiment of the present application, mainly showing the state diagram of the fixing plate forming a plane.

[0031] Figure 6 It is a cross-sectional structure schematic diagram of the fixed part in the embodiment of the present application, mainly showing the state diagram of the fixing plate forming an included angle.

[0032] Figure 7 Figure 1 is a schematic view of the cooperation state of the worm gear and the worm in the embodiment of the present application.

[0033] In the above figure: 1, double grinding machine tool; 2, mounting seat; 21, support frame; 22, extrusion part; 221, guide slope; 3, rotating disc; 31, mounting station; 32, mounting block; 33, limiting groove; 34, positioning hole; 4, adjusting seat; 41, guide wheel; 42, spring; 43, mounting groove; 44, screw rod; 45, extrusion rod; 451, roller; 5, fixed seat; 51, adjusting groove; 52, cylindrical bearing; 53, positioning rod; 54, fixed part; 55, cavity; 551, limiting block; 6, fixed plate; 61, worm gear; 62, gear; 63, worm. DETAILED DESCRIPTION

[0034] The technical solutions in the present application will be further described below with reference to the drawings and embodiments.

[0035] As shown in Figures 1 to 4 the embodiment of the present application, a machining tool structure of double-face grinding machine is provided, which comprises a mounting seat 2, a rotating disc 3 rotatably arranged on the mounting seat 2 and provided with a plurality of mounting stations 31, and a fixed seat 5 movably arranged in the mounting station 31, the rotating disc 3 is located between the double grinding machine tools 1, and the machining tool structure further comprises:

[0036] a moving unit, which comprises a moving part slidably arranged in the mounting station 31 and a support frame 21 fixedly arranged on the mounting seat 2, the fixed seat 5 is provided with an adjusting groove 51 forming an included angle with the height direction of the fixed seat 5, the moving part is slidably arranged in the adjusting groove 51, the support frame 21 is provided with an extrusion part 22, and when the moving part abuts against the extrusion part 22, the moving part moves along a first direction, so that the fixed seat 5 moves along a second direction perpendicular to the first direction; and

[0037] a fixing unit, which comprises two fixed plates 6 rotatably arranged at one end of the fixed seat 5 and an adjusting part in transmission connection with the two fixed plates 6, for making the two fixed plates 6 form a plane or an included angle.

[0038] In the embodiment of the present application, firstly, when each workpiece is ground, the rotating disc 3 is started to drive the plurality of mounting stations 31 to do circular motion, and the workpieces are manually put into the empty mounting stations 31 in sequence, and then the workpieces are transmitted to the double grinding machine tools 1 between the moving mounting stations 31 for grinding.

[0039] Secondly, under the cooperation of the moving unit, through the cooperation of the moving part and the support frame 21, the support frame 21 is located on the side of the turntable 3 close to the double grinding machine cutter 1, and the side of the turntable 3 away from the double grinding machine cutter 1 is the artificial station, and the installation station 31 in the artificial station is not in a fixed state, so as to facilitate the artificial placing of the workpiece, and the placed workpiece is conveyed to the double grinding machine cutter 1 by the rotating turntable 3, and at the same time, the moving part makes a circular motion with the edge of the turntable 3, so that the moving part abuts on the extrusion part 22 in the support frame 21, and the moving part is extruded to move in the first direction (vertically downward), so that the other end of the moving part slides in the adjusting groove 51, and extrudes the fixed seat 5, so that the fixed seat 5 moves in the second direction (transversely) perpendicular to the first direction, so that the fixed seat 5 automatically presses and fixes the workpiece in the installation station 31, ensuring the stability of the workpiece during processing. The extrusion part 22 is in a stepped or inclined shape, which can adjust the position of the moving part in the support frame 21, so that the position of the moving part extruded by the extrusion part 22 changes, thereby changing the distance between the inside of the extrusion part 22 in the support frame 21 and the moving part, thereby changing the initial distance between the two to change the distance moved by the moving part after being extruded, thereby affecting the distance of the moving part sliding in the adjusting groove 51, indirectly changing the distance of the fixed seat 5 transversely sliding, so that the workpiece of different thickness or width can be pressed and fixed, which is convenient and fast, and does not need to adapt different types of positioning plates one by one, saving time and manpower.

[0040] Finally, under the cooperation of the fixing unit, the angle between the two fixed plates 6 can be adjusted by the adjusting part. When pressing and fixing the rectangular workpiece, the two fixed plates 6 can be adjusted to form a plane by the adjusting part. When clamping the cylindrical workpiece, the two fixed plates 6 are adjusted to form an included angle by the adjusting part, and the formed included angle is clamped on the cylindrical workpiece by the movement of the fixed seat 5, which increases the contact area between the cylindrical workpiece and the fixed seat 5, ensures the stability of the fixing, and improves the versatility. It is convenient to press and fix different workpieces. Through one tool structure, a variety of different types of workpieces can be clamped, which is convenient for processing.

[0041] As shown in Figure 3 the moving part comprises:

[0042] The adjusting seat 4 is provided with an extrusion rod 45, the extrusion rod 45 is movably arranged in the adjusting groove 51, and the opening side of the installation station 31 is provided with an installation block 32. The adjusting seat 4 is slidably clamped on the installation block 32.

[0043] The spring 42 is arranged in the adjusting seat 4 and abuts between the inside of the adjusting seat 4 and the installation block 32.

[0044] In the embodiment of the present application, the adjusting seat 4 is pressed by the supporting frame 21 and slides downward along the axis of the rotating disc 3 when the movable part is working, i.e. when the rotating disc 3 drives the movable part to move into the supporting frame 21, so that the pressing rod 45 slides in the adjusting groove 51, and the fixed seat 5 is limited in the horizontal direction, and the adjusting groove 51 is inclined, so that the fixed seat 5 moves horizontally in the mounting station 31 under the action of the inclined adjusting groove 51, thereby pressing and clamping the workpiece in the mounting station 31. When the adjusting seat 4 moves out of the supporting frame 21 under the continuous rotation of the rotating disc 3, the limiting of the adjusting seat 4 is released, and the adjusting seat 4 returns to the original position under the action of the spring 42, thereby facilitating the next workpiece to be placed.

[0045] As shown in Figures 5 to 7 , the adjusting part comprises:

[0046] The fixed part 54 is arranged at one end of the fixed seat 5, and a cavity 55 is formed in the fixed part 54;

[0047] The two gears 62 are arranged on the rotating shafts of the two fixed plates 6, and the two gears 62 are engaged;

[0048] The worm wheel 61 is arranged on the rotating shaft of one of the fixed plates 6; and

[0049] The worm 63 is arranged in the fixed part 54 and extends into the cavity 55 to engage with the worm wheel 61.

[0050] In the embodiment of the present application, when the angle between the two fixed plates 6 is adjusted by the adjusting part, in the initial state, i.e. when the rectangular workpiece is clamped, the angle between the two fixed plates 6 does not need to be adjusted, so that the two fixed plates 6 are arranged in a 180° plate structure, and the plate structure directly abuts against the side surface of the workpiece, thereby ensuring the stability of the clamping of the rectangular workpiece. When the cylindrical workpiece is clamped, the worm 63 is rotated to drive the worm wheel 61 engaged with the worm 63 to rotate, so that the worm wheel 61 drives one of the fixed plates 6 arranged thereon to rotate. Since the two fixed plates 6 are engaged by the gears 62, the two fixed plates 6 move synchronously inwardly or outwardly, so as to change the angle between the two fixed plates 6, and the formed angle is engaged with the circumferential side of the cylindrical workpiece, thereby increasing the contact area between the cylindrical workpiece and the two fixed plates 6, and ensuring the stability of the clamping of the cylindrical workpiece.

[0051] In order to improve the transmission efficiency of the adjusting seat 4, as shown in Figure 3 and Figure 4As shown, the top of the adjusting seat 4 is provided with a guide wheel 41, which is in abutment with the extrusion part 22. The guide wheel 41 is in rolling abutment with the support frame 21, which reduces the friction between the guide wheel 41 and the inner side of the support frame 21, indirectly improves the transmission efficiency, and also reduces the generation of noise.

[0052] As shown, the top surface of the adjusting seat 4 is provided with a mounting groove 43, the guide wheel 41 is slidingly connected in the mounting groove 43, a screw rod 44 is arranged in the mounting groove 43, and the screw rod 44 is in threaded connection with the guide wheel 41. Figure 4 In the embodiment of the present application, when the axial distance of the adjusting seat 4 is adjusted, the screw rod 44 is rotated to drive the guide wheel 41 to move along the axis of the rotating disc 3, so as to change the position of the guide wheel 41 on the support frame 21. As described above, the inner side of the support frame 21 is in a stepped or inclined shape. When it is in a stepped shape, the size of the workpiece is used to adjust the guide wheel 41 to correspond to one of the steps, so as to change the extrusion distance of the support frame 21 to the adjusting seat 4, thereby quickly changing the transverse sliding distance of the fixing seat 5. In other embodiments, the inner side of the support frame 21 can also be inclined. When the guide wheel 41 moves axially on the inner side of the support frame 21, the fixing distance of the fixing seat 5 can be adjusted, which is more accurate and suitable for workpieces of various sizes.

[0053] In order to improve the smoothness of the guide wheel 41 moving from the support frame 21 to the extrusion part 22, as shown in the figure, the two ends of the extrusion part 22 are provided with guide inclined surfaces 221. Through the gradual extrusion of the guide inclined surfaces 221, the guide wheel 41 moves from the support frame 21 to the extrusion part 22 more smoothly, so as to avoid impact and noise or damage.

[0054] Figure 3 As shown, the bottom end of the mounting station 31 and the inner side of the mounting block 32 are provided with limiting grooves 33, and the top surface and the bottom surface of the fixing seat 5 are provided with cylindrical bearings 52, and the plurality of cylindrical bearings 52 are in rolling abutment with the limiting grooves 33.

[0055] In the embodiment of the present application, since the transverse movement of the fixing seat 5 is formed by the movement and extrusion of the extrusion rod 45 in the adjusting groove 51, under the action of the plurality of cylindrical bearings 52, the friction between the upper and lower sides of the fixing seat 5 and the inside of the limiting groove 33 can be reduced, that is, the fixing seat 5 can be limited by the limiting groove 33, and the fixing seat 5 can also be helped to slide transversely by the cylindrical bearings 52, thereby improving the transmission efficiency of the fixing seat 5. Figure 3 In order to improve the limiting of the fixing seat 5, as shown in the figure, the two ends of the mounting block 32 are provided with limiting grooves 33, and the top surface and the bottom surface of the fixing seat 5 are provided with cylindrical bearings 52, and the plurality of cylindrical bearings 52 are in rolling abutment with the limiting grooves 33.

[0056]

[0057] Figure 3 ​​​As shown, the side of the installation station 31 is provided with a positioning hole 34, one end of the fixed seat 5 is provided with a positioning rod 53, and the positioning rod 53 is arranged in the positioning hole 34. Through the cooperation of the positioning hole 34 and the positioning rod 53, the fixed seat 5 can be limited in the axial direction of the positioning hole 34 at all times, thereby maintaining the stability of the structure.

[0058] In order to reduce the wear of the extrusion rod 45 or the inner side surface of the adjusting groove 51, as shown, Figure 4 As shown, the extrusion rod 45 is sleeved with a roller 451, and the roller 451 is in rolling contact with the inner side surface of the adjusting groove 51. When the extrusion rod 45 extrudes the inclined surface of the adjusting groove 51 through the pressure generated by the up and down, the roller 451 can roll and slide in the adjusting groove 51, thereby reducing the friction between the extrusion rod 45 and the inner side surface of the adjusting groove 51, and indirectly reducing the wear of the extrusion rod 45 or the inner side surface of the adjusting groove 51.

[0059] As shown, Figure 4 As shown, Figure 5 As shown, two limiting blocks 551 are arranged in the cavity 55, and the two fixed plates 6 are respectively abutted on the two limiting blocks 551 when the two fixed plates 6 are adjusted to be flat.

[0060] In the embodiment of the application, when the two fixed plates 6 are adjusted to be flat, the two fixed plates 6 are respectively abutted on the two limiting blocks 551, and when the side surface of the rectangular workpiece is pressed and fixed by the two fixed plates 6, the pressure can be shared by the limiting blocks 551, thereby reducing the pressure of the worm wheel 61 and the worm 63. Moreover, the limiting blocks 551 also have the function of limiting, so that the surfaces of the two fixed plates 6 are adjusted to be flat and cannot form an included angle inward, thereby ensuring the fit with the surface of the rectangular workpiece.

[0061] The implementation principle of the embodiment of the application is as follows:

[0062] According to the working state of the fixed seat 5 under actual conditions, when the cylindrical workpiece is pressed and fixed, the worm 63 is only needed to be rotated, so that the worm 63 drives the meshed worm wheel 61 to rotate, thereby driving one of the fixed plates 6 arranged on the worm wheel 61 to rotate. Since the two fixed plates 6 are meshed by the gear 62, the two fixed plates 6 are synchronously moved inward or outward, so as to change the angle between the two fixed plates 6. When the rectangular workpiece is machined, the worm 63 is reversed through the above steps, so that the two fixed plates 6 are 180°. According to the thickness, width or diameter of the workpiece, the movement distance of the fixed seat 5 is adjusted, the screw rod 44 is rotated in the installation groove 43, so that the guide wheel 41 moves along the axis of the rotating disc 3, thereby changing the position of the guide wheel 41 on the support frame 21.

[0063] Then the double grinding machine tool 1 and the rotating disc 3 of the multiple mounting stations 31 are started, so that the rotating disc 3 drives the multiple mounting stations 31 to do the circular motion, and the workpieces are put into the empty mounting stations 31 by hand in sequence, and the workpieces are transferred to the double grinding machine tool 1 by the movable mounting stations 31 for grinding, when the rotating disc 3 drives the movable mounting stations 31 to move into the supporting frame 21, the guide wheels 41 are pressed by the supporting frame 21 to slide along the axis of the rotating disc 3 downward, so that the pressing rods 45 slide in the adjusting grooves 51, the adjusting grooves 51 are arranged at an angle with the height direction of the fixed seat 5, and the fixed seat 5 is limited in the horizontal direction, so that the fixed seat 5 moves horizontally in the mounting station 31 under the action of the inclined adjusting grooves 51, so as to press and clamp the workpiece in the mounting station 31, when the guide wheels 41 move out of the supporting frame 21 in the continuous rotation of the rotating disc 3 (at this position, the conveying mechanism for the workpieces can be connected to convey the workpieces to the next station), the limiting of the adjusting seat 4 is released, and the adjusting seat 4 can return under the action of the spring 42, so as to facilitate the next workpiece to be put in.

[0064] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A machining tool structure of a double-end surface grinding machine, comprising a mounting base (2), a rotary disc (3) rotatably arranged on the mounting base (2) and provided with a plurality of mounting stations (31), and a fixing base (5) movably arranged on the mounting station (31), the rotary disc (3) being located between double grinding machine tools (1), characterized in that, The machining tool structure further comprises: a movable unit, comprising a movable piece slidingly arranged on the mounting station (31) and a support frame (21) fixedly arranged on the mounting base (2), the fixed base (5) is provided with an adjusting groove (51) forming an included angle with the height direction of the fixed base (5), the movable piece is slidingly arranged in the adjusting groove (51), the support frame (21) is provided with a pressing portion (22), when the movable piece abuts against the pressing portion (22), the movable piece moves in a first direction, so that the fixed base (5) moves in a second direction perpendicular to the first direction; and a fixed unit, comprising two fixed plates (6) rotatably arranged at one end of the fixed base (5) and an adjusting piece in transmission connection with the two fixed plates (6), for making the two fixed plates (6) form a plane or an included angle.

2. The processing tool structure of a dual-end surface grinding machine according to claim 1, wherein The movable piece comprises: an adjusting base (4) provided with a pressing rod (45), the pressing rod (45) is movably arranged in the adjusting groove (51), one side of the mounting station (31) is provided with a mounting block (32), the adjusting base (4) is slidingly connected with the mounting block (32); a spring (42) arranged in the adjusting base (4) and abutting against the inside of the adjusting base (4) and the mounting block (32).

3. The processing tool structure of a dual-end surface grinding machine according to claim 1, wherein The adjusting piece comprises: a fixed portion (54) arranged at one end of the fixed base (5) and having a cavity (55) formed in the inside thereof; two gears (62) respectively arranged on the rotating shafts of the two fixed plates (6), and the two gears (62) are in meshing engagement; a worm wheel (61) arranged on the rotating shaft of one of the fixed plates (6); and a worm (63) movably arranged in the fixed portion (54) and extending into the cavity (55) and in meshing engagement with the worm wheel (61).

4. The processing tool structure of a dual-end surface grinding machine according to claim 2, wherein The top of the adjusting base (4) is provided with a guide wheel (41) abutting against the pressing portion (22).

5. The processing tool structure of a double-disc grinding machine according to claim 4, wherein The pressing portion (22) is in a stepped or inclined shape, the top surface of the adjusting base (4) is provided with a mounting groove (43), the guide wheel (41) is slidingly connected with the mounting groove (43), a screw rod (44) is movably arranged in the mounting groove (43), and the screw rod (44) is in threaded connection with the guide wheel (41).

6. The processing tool structure of a dual facing grinding machine according to claim 5, wherein Both ends of the pressing portion (22) are provided with guide inclined surfaces (221).

7. The processing tool structure of a dual-end surface grinder according to claim 2, wherein The bottom end of the mounting station (31) and the inside of the mounting block (32) are provided with limiting grooves (33), the top surface and the bottom surface of the fixed base (5) are provided with cylindrical bearings (52), and a plurality of cylindrical bearings (52) are respectively in rolling contact with the limiting grooves (33).

8. The processing tool structure of a double-disc grinding machine according to claim 1 or 7, wherein The side surface of the mounting station (31) is provided with a positioning hole (34), one end of the fixed base (5) is provided with a positioning rod (53), and the positioning rod (53) is movably arranged in the positioning hole (34).

9. The processing tool structure of a dual-end surface grinding machine according to Claim 2, wherein The pressing rod (45) is provided with a roller (451) sleeved thereon, and the roller (451) is in rolling contact with the inside surface of the adjusting groove (51).

10. The processing tool structure of a dual-end surface grinding machine according to claim 3, wherein Two limiting blocks (551) are arranged in the cavity (55) correspondingly, and the two fixing plates (6) abut on the two limiting blocks (551) respectively when the two fixing plates (6) form a plane.

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