A spindle grinding head traverse assembly for an integrated grinding machine

Abstract

The present invention discloses a spindle grinding head transverse movement assembly of an opening and grinding integrated machine, comprising a spindle grinding head mounting seat, a reciprocating mechanism being arranged on the spindle grinding head mounting seat, the reciprocating mechanism comprising a forward drive assembly, a reverse drive assembly and a steering assembly, the forward drive assembly comprising a slide rail, a bearing limit plate and a limit connecting plate, the slide rail is provided with a slide groove, the spindle grinding head mounting seat is provided with a slider, the slider is located inside the slide groove, and two bearing limit plates are arranged. The spindle grinding head transverse movement assembly of the opening and grinding integrated machine of the present invention changes the moving direction of the spindle grinding head in a very short time by changing the magnetic poles between a plurality of electromagnets, and there is no need to change the rotation direction of the servo motor, thereby avoiding damage to the servo motor. Compared with the traditional spindle grinding head transverse movement assembly, the present invention has more advantages in processing workpieces with smooth and regular surfaces such as plates, and has higher production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical production and processing, and in particular to a spindle grinding head lateral movement component of an integrated grinding machine. Background Art

[0002] In plate processing, workers need to grind and drill holes in the plates as required, and often use punching equipment and grinding equipment. When it is necessary to grind and drill holes in the plates, since drilling and grinding are performed on different machines, the plates need to be frequently switched between the punching equipment and the grinding equipment. In order to improve efficiency, plate processing manufacturers often use all-in-one punching and grinding machines for processing.

[0003] Traditional drilling and grinding machines generally use a motor to drive a screw mechanism to drive a spindle grinding head. Most plates are workpieces with smooth surfaces. Therefore, the spindle grinding head only needs to grind back and forth on the surface of the plate several times to finely grind the surface of the workpiece. However, there is often a pause time at the moment of the round trip, and the motor needs to reverse and then drive the screw mechanism, which increases the time for workpiece processing and does not meet the manufacturer's pursuit of high efficiency. Summary of the invention

[0004] In order to solve the deficiencies mentioned in the above-mentioned background technology, the purpose of the present invention is to provide a spindle grinding head lateral movement assembly for an integrated opening and grinding machine. By changing the magnetic poles between multiple electromagnets, the moving direction of the spindle grinding head can be changed in a very short time. There is no need to change the rotation direction of the servo motor, thereby avoiding damage to the servo motor. Compared with traditional spindle grinding head lateral movement assemblies, the present invention has more advantages in processing workpieces with smooth and regular surfaces such as plates, and has higher production efficiency.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A spindle grinding head traverse assembly of an opening and grinding integrated machine, comprising a spindle grinding head mounting seat, a reciprocating mechanism being arranged on the spindle grinding head mounting seat, the reciprocating mechanism comprising a forward drive assembly, a reverse drive assembly and a steering assembly, the forward drive assembly comprising a slide rail, a bearing limit plate and a limit connecting plate, a slide groove being arranged on the slide rail, a slider being arranged on the spindle grinding head mounting seat, the slider being located inside the slide groove, two bearing limit plates being arranged, the slide rail being fixedly mounted on one of the bearing limit plates, and the limit connecting plate being fixedly mounted between the two bearing limit plates;

[0007] The gear train is configured to be coupled to the first gear and to provide a means for rotating the gears so as to move the gears relative to the first gear, wherein the gear train is configured to be coupled to the first gear train and to provide a means for rotating the gears relative to the first gear.

[0008] As a preferred solution of the present invention, a servo motor is fixedly installed on the side of the bearing limit plate away from the slide rail, the output end of the servo motor is connected to the first active rotating shaft, the axis lines of the first active gear and the first passive rotating shaft coincide, the first passive side gear and the first active side gear are meshed with each other, and the tooth plate and the first passive gear are meshed with each other.

[0009] As a preferred solution of the present invention, the reverse drive component includes a second active rotating shaft, which is movably mounted on a bearing limit plate away from the slide rail, a second active rotating shaft is fixedly connected to a second active gear, a limiting slide bar is fixedly connected to the second active rotating shaft and located on a side of the second active gear close to the slide rail, a second active side gear is sleeved on the second active rotating shaft and located on a side of the second active gear close to the slide rail, a second passive rotating shaft is movably mounted on the bearing limit plate close to the slide rail, a second passive rotating shaft is fixedly connected to a second passive gear, and an end of the second passive rotating shaft close to the second active side gear is fixedly connected to the second passive side gear.

[0010] As a preferred solution of the present invention, the first driving gear and the second driving gear are meshed with each other, the limiting slide bar on the first driving shaft is used to limit the circumferential offset between the first driving side gear and the first driving shaft, the limiting slide bar on the second driving shaft is used to limit the circumferential offset between the second driving side gear and the second driving shaft, the axis of the second driving gear and the second passive shaft coincide, the second passive side gear and the second driving side gear are meshed with each other, and the tooth plate and the second passive gear are meshed with each other.

[0011] As a preferred solution of the present invention, the steering assembly includes a toggle pile, which is fixedly mounted on the limiting connecting plate and located between the first active rotating shaft and the second active rotating shaft. A toggle rod is sleeved on the toggle pile, and the toggle rod is slidably connected to the toggle pile. A toggle block is symmetrically arranged on one side of the toggle rod close to the limiting connecting plate, and the sliding block is slidably connected to the toggle rod. The first active side gear and the second active side gear are both circumferentially provided with an engaging groove, and the toggle block is located in the engaging groove.

[0012] As a preferred solution of the present invention, a first main electromagnet and a second main electromagnet are symmetrically arranged on the bearing limit plate away from the slide rail, and a first secondary electromagnet and a second secondary electromagnet are symmetrically arranged on the toggle rod, the first main electromagnet and the first secondary electromagnet are adapted to each other, and the second main electromagnet and the second secondary electromagnet are adapted to each other.

[0013] The use principle of a spindle grinding head transverse movement assembly of an integrated grinding machine includes the following steps:

[0014] S0, the spindle grinding head moves in the X direction through the reciprocating mechanism, and another set of screw drive mechanism is set to control the spindle grinding head to move in the Y direction.

[0015] S1, measure the X-direction length a of the machining surface of the workpiece to be machined, and input the value into the PLC control cabinet, power on all electromagnets, the first main electromagnet and the first auxiliary electromagnet have the same magnetic poles, the second main electromagnet and the second auxiliary electromagnet have the same magnetic poles, at this time the distance between the first main electromagnet and the first auxiliary electromagnet is the same as the distance between the second main electromagnet and the second auxiliary electromagnet, the first active side gear and the second active side gear are both in a disengaged state,

[0016] S2, positive movement in the X direction, at this time, the first main electromagnet and the first auxiliary electromagnet have the same magnetic pole, and the first main electromagnet and the first auxiliary electromagnet have magnetic poles away from each other, so that the toggle block on the first active side gear drives the first active side gear close to the slide rail until it meshes with the first passive side gear, the second main electromagnet and the second auxiliary electromagnet have opposite magnetic poles, and the second main electromagnet and the second auxiliary electromagnet have magnetic poles close to each other, so that the toggle block on the second active side gear drives the second active side gear away from the slide rail, at this time, the first active shaft and the first passive shaft rotate synchronously, and the first passive gear on the first passive shaft drives the spindle grinding head mounting seat on the gear plate to start moving positively along the X direction,

[0017] S3, reverse movement in the X direction. When the distance moved by the spindle grinding head is equal to a, the PLC control cabinet changes the current direction of the first main electromagnet and the second main electromagnet, thereby changing the magnetic pole. At this time, the magnetic poles of the first main electromagnet and the first auxiliary electromagnet are opposite, and the magnetic poles of the first main electromagnet and the first auxiliary electromagnet are close to each other, driving the first active side gear and the first passive side gear to disengage. The magnetic poles of the second main electromagnet and the second auxiliary electromagnet are opposite, and the second main electromagnet and the second auxiliary electromagnet are away from each other, driving the second active side gear and the second passive side gear to engage. Since the first active gear is engaged with the second active gear, the rotation directions of the first active shaft and the second active shaft are opposite, so that the second passive gear drives the spindle grinding head mounting seat on the gear plate to start moving in the opposite direction along the X direction.

[0018] The beneficial effects of the present invention are:

[0019] The present invention changes the moving direction of the spindle grinding head in a very short time by changing the magnetic poles between a plurality of electromagnets, without changing the rotation direction of the servo motor, thereby avoiding damage to the servo motor. Compared with the traditional spindle grinding head transverse movement assembly, the present invention has more advantages in processing workpieces with smooth and regular surfaces such as plates, and has higher production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the reciprocating mechanism of the present invention when moving in the X direction;

[0023] Figure 3 It is a schematic diagram of the structure of the forward driving mechanism in the present invention;

[0024] Figure 4 is a schematic diagram of the position of the limit slide bar in the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the reverse drive mechanism in the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the steering assembly in the present invention.

[0027] In the figure:

[0028] 1. Spindle grinding head mounting seat; 2. Reciprocating mechanism; 3. Forward drive assembly; 4. Reverse drive assembly; 5. Steering assembly; 6. Slide rail; 7. Bearing limit plate; 8. Limit connecting plate; 9. Slide groove; 10. Slider; 11. First active shaft; 12. First active gear; 13. Limit slide bar; 14. First active side gear; 15. First passive shaft; 16. First passive gear; 17. First passive side gear; 18. Tooth plate; 19. Servo motor; 20. Second active shaft; 21. Second active gear; 22. Second active side gear; 23. Second passive shaft; 24. Second passive gear; 25. Second passive side gear; 26. Toggle pile; 27. Toggle rod; 28. Toggle block; 29. ​​Engaging groove; 30. First main electromagnet; 31. Second main electromagnet; 32. First auxiliary electromagnet; 33. Second auxiliary electromagnet. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] like Figure 1-Figure 6 As shown, a spindle grinding head traverse assembly of an opening and grinding integrated machine comprises a spindle grinding head mounting seat 1, a reciprocating mechanism 2 is arranged on the spindle grinding head mounting seat 1, the reciprocating mechanism 2 comprises a forward drive assembly 3, a reverse drive assembly 4 and a steering assembly 5, the forward drive assembly 3 comprises a slide rail 6, a bearing limit plate 7 and a limit connecting plate 8, a slide groove 9 is arranged on the slide rail 6, a slider 10 is arranged on the spindle grinding head mounting seat 1, the slider 10 is located inside the slide groove 9, two bearing limit plates 7 are arranged, the slide rail 6 is fixedly mounted on one of the bearing limit plates 7, and the limit connecting plate 8 is fixedly mounted between the two bearing limit plates 7;

[0032] A first active rotating shaft 11 runs through the bearing limiting plate 7 away from the slide rail 6, a first active gear 12 is fixedly connected to the first active rotating shaft 11 and located between the two bearing limiting plates 7, a limiting sliding bar 13 is fixedly connected to the first active rotating shaft 11 and located on the side of the first active gear 12 close to the slide rail 6, a first active side gear 14 is sleeved on the first active rotating shaft 11 and located on the side of the first active gear 12 close to the slide rail 6, a first passive rotating shaft 15 is movably installed on the bearing limiting plate 7 close to the slide rail 6, a first passive rotating shaft 15 is fixedly connected to the first passive gear 16, and a first passive side gear 17 is fixedly connected to one end of the first passive rotating shaft 15 close to the first active side gear 14, and a toothed plate 18 is fixedly connected to the spindle grinding head mounting seat 1.

[0033] As a preferred solution of the present invention, a servo motor 19 is fixedly installed on the side of the bearing limit plate 7 away from the slide rail 6, the output end of the servo motor 19 is connected to the first active rotating shaft 11, the axis lines of the first active gear 12 and the first passive rotating shaft 15 coincide, the first passive side gear 17 is meshed with the first active side gear 14, and the tooth plate 18 is meshed with the first passive gear 16.

[0034] As a preferred solution of the present invention, the reverse drive assembly 4 includes a second active rotating shaft 20, which is movably mounted on a bearing limit plate 7 away from the slide rail 6, a second active rotating shaft 20 is fixedly connected to a second active gear 21, a limiting slide bar 13 is fixedly connected to the second active rotating shaft 20 and located on the side of the second active gear 21 close to the slide rail 6, a second active side gear 22 is sleeved on the second active rotating shaft 20 and located on the side of the second active gear 21 close to the slide rail 6, a second passive rotating shaft 23 is movably mounted on the bearing limit plate 7 close to the slide rail 6, a second passive rotating shaft 23 is fixedly connected to a second passive gear 24, and a second passive rotating shaft 23 is fixedly connected to an end of the second passive rotating shaft 23 close to the second active side gear 22.

[0035] As a preferred embodiment of the present invention, the first driving gear 12 and the second driving gear 21 are meshed with each other, the upper limit slide bar 13 of the first driving shaft 11 is used to limit the circumferential offset between the first driving side gear 14 and the first driving shaft 11, the upper limit slide bar 13 of the second driving shaft 20 is used to limit the circumferential offset between the second driving side gear 22 and the second driving shaft 20, the axis line of the second driving gear 21 and the second passive shaft 23 coincides, the second passive side gear 25 and the second driving side gear 22 are meshed with each other, and the tooth plate 18 and the second passive gear 24 are meshed with each other.

[0036] As a preferred embodiment of the present invention, the steering assembly 5 includes a toggle pile 26, which is fixedly mounted on the limiting connecting plate 8 and located between the first active rotating shaft 11 and the second active rotating shaft 20. A toggle rod 27 is sleeved on the toggle pile 26, and the toggle rod 27 is slidably connected to the toggle pile 26. A toggle block 28 is symmetrically arranged on one side of the toggle rod 27 close to the limiting connecting plate 8, and the sliding block is slidably connected to the toggle rod 27. The first active side gear 14 and the second active side gear 22 are both circumferentially provided with an interlocking groove 29, and the toggle block 28 is located in the interlocking groove 29.

[0037] As a preferred solution of the present invention, a first main electromagnet 30 and a second main electromagnet 31 are symmetrically arranged on the bearing limit plate 7 away from the slide rail 6, and a first auxiliary electromagnet 32 ​​and a second auxiliary electromagnet 33 are symmetrically arranged on the toggle rod 27. The first main electromagnet 30 and the first auxiliary electromagnet 32 ​​are adapted to each other, and the second main electromagnet 31 and the second auxiliary electromagnet 33 are adapted to each other.

[0038] The use principle of a spindle grinding head transverse movement assembly of an integrated grinding machine includes the following steps:

[0039] S0, control the spindle grinding head to move in the X direction through the reciprocating mechanism 2, and set another set of screw drive mechanism to control the spindle grinding head to move in the Y direction,

[0040] S1, measure the X-direction length a of the machining surface of the workpiece to be machined, and input the value into the PLC control cabinet, power on all electromagnets, the first main electromagnet 30 and the first auxiliary electromagnet 32 ​​have the same magnetic poles, the second main electromagnet 31 and the second auxiliary electromagnet 33 have the same magnetic poles, at this time, the distance between the first main electromagnet 30 and the first auxiliary electromagnet 32 ​​is the same as the distance between the second main electromagnet 31 and the second auxiliary electromagnet 33, the first active side gear 14 and the second active side gear 22 are both in a disengaged state,

[0041] S2, positive movement in the X direction, at this time, the first main electromagnet 30 and the first auxiliary electromagnet 32 ​​have the same magnetic poles, and the first main electromagnet 30 and the first auxiliary electromagnet 32 ​​are far away from each other, so that the toggle block 28 on the first active side gear 14 drives the first active side gear 14 to approach the slide rail 6 until it meshes with the first passive side gear 17, the second main electromagnet 31 and the second auxiliary electromagnet 33 have opposite magnetic poles, and the second main electromagnet 31 and the second auxiliary electromagnet 33 are close to each other, so that the toggle block 28 on the second active side gear 22 drives the second active side gear 22 away from the slide rail 6, at this time, the first active shaft 11 and the first passive shaft 15 rotate synchronously, and the first passive gear 16 on the first passive shaft 15 drives the spindle grinding head mounting seat 1 on the gear plate 18 to start moving positively along the X direction,

[0042] S3, reverse movement in the X direction. When the distance moved by the spindle grinding head is equal to a, the PLC control cabinet changes the current direction of the first main electromagnet 30 and the second main electromagnet 31, thereby changing the magnetic pole. At this time, the magnetic poles of the first main electromagnet 30 and the first auxiliary electromagnet 32 ​​are opposite, and the magnetic poles of the first main electromagnet 30 and the first auxiliary electromagnet 32 ​​are close to each other, driving the first active side gear 14 and the first passive side gear 17 to disengage. The magnetic poles of the second main electromagnet 31 and the second auxiliary electromagnet 33 are opposite, and the second main electromagnet 31 and the second auxiliary electromagnet 33 are away from each other, driving the second active side gear 22 and the second passive side gear 25 to engage. Since the first active gear 12 is engaged with the second active gear 21, the rotation directions of the first active shaft 11 and the second active shaft 20 are opposite, so that the second passive gear 24 drives the spindle grinding head mounting seat 1 on the gear plate 18 to start moving in the opposite direction along the X direction.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

[0045] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, simple improvements, etc. made to the essential contents of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spindle grinding head traverse assembly for a grinding machine, characterized in that: The invention comprises a spindle grinding head mounting seat (1), a reciprocating mechanism (2) being arranged on the spindle grinding head mounting seat (1), the reciprocating mechanism (2) comprising a forward drive assembly (3), a reverse drive assembly (4) and a steering assembly (5), the forward drive assembly (3) comprising a slide rail (6), a bearing limit plate (7) and a limit connecting plate (8), the slide rail (6) being provided with a slide groove (9), the spindle grinding head mounting seat (1) being provided with a slider (10), the slider (10) being located inside the slide groove (9), two bearing limit plates (7) being provided, the slide rail (6) being fixedly mounted on one of the bearing limit plates (7), and the limit connecting plate (8) being fixedly mounted between the two bearing limit plates (7); A first active rotating shaft (11) passes through the bearing limit plate (7) away from the slide rail (6); a first active gear (12) is fixedly connected to the first active rotating shaft (11) and located between the two bearing limit plates (7); a limiting sliding bar (13) is fixedly connected to the first active rotating shaft (11) and located on a side of the first active gear (12) close to the slide rail (6); a first active side gear (14) is sleeved on the first active rotating shaft (11) and located on a side of the first active gear (12) close to the slide rail (6); a first passive rotating shaft (15) is movably mounted on the bearing limit plate (7) close to the slide rail (6); a first passive rotating shaft (15) is fixedly connected to a first passive gear (16); an end of the first passive rotating shaft (15) close to the first active side gear (14) is fixedly connected to a first passive side gear (17); and a tooth plate (18) is fixedly connected to the spindle grinding head mounting seat (1); The reverse drive assembly (4) comprises a second active rotating shaft (20), the second active rotating shaft (20) being movably mounted on a bearing limiting plate (7) away from the slide rail (6), a second active gear (21) being fixedly connected to the second active rotating shaft (20), a limiting sliding bar (13) being fixedly connected to the second active rotating shaft (20) at a side of the second active gear (21) close to the slide rail (6), a second active side gear (22) being sleeved on the second active rotating shaft (20) at a side of the second active gear (21) close to the slide rail (6), a second passive rotating shaft (23) being movably mounted on the bearing limiting plate (7) close to the slide rail (6), a second passive rotating shaft (23) being fixedly connected to a second passive gear (24), and a second passive rotating shaft (23) being fixedly connected to an end of the second passive rotating shaft (23) close to the second active side gear (22) being fixedly connected to a second passive side gear (25); The first driving gear (12) and the second driving gear (21) are meshed with each other, the limiting slide bar (13) on the first driving shaft (11) is used to limit the circumferential offset between the first driving side gear (14) and the first driving shaft (11), the limiting slide bar (13) on the second driving shaft (20) is used to limit the circumferential offset between the second driving side gear (22) and the second driving shaft (20), the axis lines of the second driving gear (21) and the second passive shaft (23) coincide, the second passive side gear (25) and the second driving side gear (22) are meshed with each other, and the toothed plate (18) and the second passive gear (24) are meshed with each other; The steering assembly (5) comprises a toggle post (26), the toggle post (26) being fixedly mounted on the limit connecting plate (8) and being located between the first active rotating shaft (11) and the second active rotating shaft (20), a toggle rod (27) being sleeved on the toggle post (26), the toggle rod (27) being slidably connected to the toggle post (26), a toggle block (28) being symmetrically arranged on one side of the toggle rod (27) close to the limit connecting plate (8), the toggle block (28) being slidably connected to the toggle rod (27), the first active side gear (14) and the second active side gear (22) both being circumferentially provided with an engaging groove (29), the toggle block (28) being located in the engaging groove (29).

2. The spindle grinding head traverse assembly of the grinding machine according to claim 1, characterized in that: A servo motor (19) is fixedly mounted on the side of the bearing stop plate (7) away from the slide rail (6), the output end of the servo motor (19) is connected to the first driving shaft (11), the axis lines of the first driving gear (12) and the first passive shaft (15) coincide, the first passive side gear (17) and the first driving side gear (14) are meshed with each other, and the toothed plate (18) and the first passive gear (16) are meshed with each other.

3. The spindle grinding head traverse assembly of the grinding machine according to claim 1, characterized in that: A first main electromagnet (30) and a second main electromagnet (31) are symmetrically arranged on the bearing limit plate (7) away from the slide rail (6), and a first auxiliary electromagnet (32) and a second auxiliary electromagnet (33) are symmetrically arranged on the toggle rod (27); the first main electromagnet (30) and the first auxiliary electromagnet (32) are adapted to each other, and the second main electromagnet (31) and the second auxiliary electromagnet (33) are adapted to each other.

4. A method for using a spindle grinding head traverse assembly of an opening and grinding machine, comprising a spindle grinding head traverse assembly of an opening and grinding machine according to any one of claims 1 to 3, characterized in that: The steps include: S0, the reciprocating mechanism (2) is used to control the movement of the spindle grinding head in the X direction, and another set of screw drive mechanisms is set to control the movement of the spindle grinding head in the Y direction. S1, measuring the X-direction length a of the machining surface of the workpiece to be machined, and inputting the value into the PLC control cabinet, and then powering on. The first main electromagnet (30) and the first auxiliary electromagnet (32) have the same magnetic poles, and the second main electromagnet (31) and the second auxiliary electromagnet (33) have the same magnetic poles. At this time, the distance between the magnetic poles of the first main electromagnet (30) and the first auxiliary electromagnet (32) is the same as the distance between the magnetic poles of the second main electromagnet (31) and the second auxiliary electromagnet (33). The first active side gear (14) and the second active side gear (22) are both in a disengaged state. S2, positive movement in the X direction, at this time, the magnetic poles of the first main electromagnet (30) and the first auxiliary electromagnet (32) are the same, and the magnetic poles of the first main electromagnet (30) and the first auxiliary electromagnet (32) are away from each other, so that the toggle block (28) on the first active side gear (14) drives the first active side gear (14) to approach the slide rail (6) until it meshes with the first passive side gear (17), the magnetic poles of the second main electromagnet (31) and the second auxiliary electromagnet (33) are opposite, and the magnetic poles of the second main electromagnet (31) and the second auxiliary electromagnet (33) are close to each other, so that the toggle block (28) on the second active side gear (22) drives the second active side gear (22) away from the slide rail (6), at this time, the first active shaft (11) and the first passive shaft (15) rotate synchronously, and the first passive gear (16) on the first passive shaft (15) drives the spindle grinding head mounting seat (1) on the gear plate (18) to start moving positively along the X direction, S3, reverse movement in the X direction. When the distance moved by the spindle grinding head is equal to a, the PLC control cabinet changes the current direction of the first main electromagnet (30) and the second main electromagnet (31), thereby changing the magnetic poles. At this time, the magnetic poles of the first main electromagnet (30) and the first auxiliary electromagnet (32) are opposite, and the magnetic poles of the first main electromagnet (30) and the first auxiliary electromagnet (32) are close to each other, driving the first active side gear (14) and the first passive side gear (17) to disengage, and the second main electromagnet (31) and the second auxiliary electromagnet (32) are disengaged. The magnetic poles of the auxiliary electromagnet (33) are opposite, and the second main electromagnet (31) and the second auxiliary electromagnet (33) move away from each other, driving the second active side gear (22) to mesh with the second passive side gear (25). Since the first active gear (12) and the second active gear (21) are meshed, the first active rotating shaft (11) and the second active rotating shaft (20) rotate in opposite directions, so that the second passive gear (24) drives the spindle grinding head mounting seat (1) on the gear plate (18) to start moving in the opposite direction along the X direction.

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