Automatic reversing polisher

By introducing a guide reversing structure into the grinder, the automatic 90-degree reversing of the workpiece during travel is solved, and the problems of low efficiency and high cost in the prior art are improved, and the grinding efficiency and equipment utilization rate are improved.

CN223012788UActive Publication Date: 2025-06-24ZHONGSHAN QISHAN MASCH EQUIP CO LTD
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Patent Information

Application Number
CN202422003294.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-16
Publication Date
2025-06-24
Estimated Expiration
2034-08-16

AI Technical Summary

Technical Problem

Existing grinders require 90-degree reversal of workpieces through reversing robots, which is complex, inefficient and increases equipment costs.

Method used

An automatic commutation grinder is designed to achieve 90-degree commutation during the workpiece travel through guidance, abolishing the commutation manipulator and adopting a guide commutation structure.

Benefits of technology

Improves grinding efficiency, reduces equipment costs, and simplifies the reversing process of workpieces.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223012788U_ABST
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Abstract

The utility model discloses an automatic reversing polisher which comprises a machine base, a left side face and right side face polishing device, a front side face and rear side face polishing device, a workpiece carrying device and a guiding reversing structure. The left-right side face grinding device and the front-back side face grinding device are arranged on the machine base and are sequentially arranged in the front-back direction. The workpiece carrying device comprises a workpiece carrier and a carrier conveying mechanism, the carrier conveying mechanism is arranged on the machine base, the workpiece carrier is arranged on the carrier conveying mechanism, and the carrier conveying mechanism is used for driving the workpiece carrier to sequentially pass through the left and right side face grinding device and the front and rear side face grinding device. The guiding and reversing structure is arranged on the machine base and is configured to guide the workpiece carrier to rotate by 90 degrees when the workpiece carrier passes through the position between the left and right side face grinding device and the front and rear side face grinding device. The automatic reversing grinding machine is low in cost and high in efficiency.
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Description

Technical Field

[0001] The utility model relates to grinding equipment, in particular to an automatic reversing grinding machine. Background Art

[0002] There are some existing square shell workpieces, which have left and right side surfaces and front and back side surfaces. An existing grinding machine for the above workpieces is provided with a left and right side surface grinding device, a front and back side surface grinding device and a reversing manipulator. The reversing manipulator is arranged between the left and right side surface grinding device and the front and back side surface grinding device. The workpiece is sequentially moved to the left and right side surface grinding device, the reversing manipulator and the front and back side surface grinding device through a workpiece conveying device, and the processes of grinding the left and right side surfaces of the workpiece, reversing the workpiece by 90 degrees and grinding the front and back side surfaces of the workpiece are sequentially completed. For the aforementioned grinding machine, it is necessary to use a reversing manipulator to turn the workpiece by 90 degrees. Specifically, the reversing manipulator needs to grasp the workpiece and then rotate it for reversing, and then place the workpiece back after reversing. The above action process is relatively complicated, with low efficiency, and the reversing manipulator also increases the equipment cost of the grinding machine. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides an automatic reversing grinding machine, which realizes the 90-degree reversing of the workpiece during the movement of the workpiece through a guiding method, thereby avoiding the use of a reversing manipulator for reversing, with low cost and high efficiency.

[0004] The automatic reversing grinding machine according to an embodiment of the utility model includes: a machine base; a left and right side surface grinding device arranged on the machine base and used for grinding the left and right side surfaces of the workpiece; a front and back side surface grinding device arranged on the machine base and used for grinding the front and back side surfaces of the workpiece; the front and back side surface grinding device and the left and right side surface grinding device are sequentially arranged in the front and back direction; a workpiece conveying device including a workpiece carrier and a carrier conveying mechanism, the carrier conveying mechanism is arranged on the machine base, the workpiece carrier is arranged on the carrier conveying mechanism, and the carrier conveying mechanism is used for driving the workpiece carrier to sequentially pass through the left and right side surface grinding device and the front and back side surface grinding device; a guiding and reversing structure arranged on the machine base, and the guiding and reversing structure is configured to guide the workpiece carrier or the workpiece on the workpiece carrier to rotate 90 degrees when the workpiece carrier passes through the position between the left and right side surface grinding device and the front and back side surface grinding device.

[0005] The automatic reversing grinding machine according to the embodiments of the present utility model has at least the following beneficial effects: when grinding a workpiece, the workpiece is first loaded on a workpiece carrier, and then the workpiece carrier is driven to move back and forth by a carrier transportation mechanism, so that it sequentially passes through the left and right side grinding devices and the front and rear side grinding devices. When passing through the left and right side grinding devices, the left and right sides of the workpiece are ground. When passing through the position between the left and right side grinding devices and the front and rear side grinding devices, the workpiece carrier or the workpiece is guided and reversed by a guiding and reversing structure and rotated by 90 degrees, realizing the guiding and reversing of the workpiece during the movement process. Then the workpiece passes through the front and rear side grinding devices to complete the grinding of the front and rear sides. The automatic reversing grinding machine according to the embodiments of the present utility model realizes reversing during the movement process of the workpiece through the guiding and reversing structure. Compared with the method of using a reversing manipulator, there is no process of grasping and releasing the workpiece, and the efficiency is higher. Moreover, canceling the use of a reversing manipulator and adopting a guiding structure for reversing also makes the equipment cost lower.

[0006] According to some embodiments of the present utility model, the workpiece carrier is rotatably arranged, and the guiding and reversing structure includes a first guiding track and a second guiding track. The first guiding track and the second guiding track are arranged in sequence in the front-rear direction. The first guiding track and the second guiding track are respectively arranged corresponding to the left and right side grinding devices and the front and rear side grinding devices. The first guiding track is used to guide and hold the workpiece carrier at a first angular position, and the second guiding track is used to guide and hold the workpiece carrier at a second angular position. The angular position difference between the second angular position and the first angular position is 90 degrees.

[0007] According to some embodiments of the present utility model, the carrier transportation mechanism includes an annular conveyor belt strip and a conveying drive structure for driving the conveyor belt strip to move in a cycle. The conveyor belt strip is arranged in the front-rear direction. A plurality of workpiece carriers are arranged along the conveyor belt strip and arranged on the conveyor belt strip. The conveyor belt strip passes through the left and right side grinding devices and the front and rear side grinding devices. The two ends of the conveyor belt strip in the front-rear direction respectively extend outside the left and right side grinding devices and the front and rear side grinding devices.

[0008] According to some embodiments of the present utility model, the first guiding track and the second guiding track are respectively provided with a first guiding groove and a second guiding groove extending in the front-back direction. Both ends of each of the first guiding groove and the second guiding groove are open and form an input end opening and an output end opening. The input end openings of each of the first guiding groove and the second guiding groove are of a tapered flared structure. The first guiding groove and the second guiding groove are located on the moving path of the workpiece carrier. The workpiece carrier is provided with four rollers, and the rollers are cross-distributed around the rotation axis of the workpiece carrier. Among the cross-distributed rollers, two of the rollers that are radially opposite along the rotation axis of the workpiece carrier are the first rollers, and the other two rollers are the second rollers. The two first rollers are used to cooperate with the first guiding groove, and the diameter of the first rollers is adapted to the width of the first guiding groove. The distance L1 between the mutually facing ends of the two first rollers is less than the maximum width S1 of the input end opening of the first guiding groove. The two second rollers are used to cooperate with the second guiding groove, and the diameter of the second rollers is adapted to the width of the second guiding groove. The distance L2 between the mutually facing ends of the two second rollers is less than the maximum width S2 of the input end opening of the second guiding groove.

[0009] According to some embodiments of the present utility model, the rotation axis of the workpiece carrier, the axes of the first rollers, and the axes of the second rollers are all arranged vertically. The two first rollers and the first guiding groove are at a first height position, and the two second rollers and the second guiding groove are at a second height position, and the second height position is not equal to the first height position.

[0010] According to some embodiments of the present utility model, the workpiece carrier is provided with a cross connecting plate. The two first rollers and the two second rollers are connected to the four ends of the cross connecting plate, and the first rollers and the second rollers are respectively located on the upper and lower sides of the cross connecting plate.

[0011] According to some embodiments of the present utility model, the left and right side surface grinding devices and the front and back side surface grinding devices each include a frame and two grinding assemblies arranged on the frame. The grinding assemblies are provided with grinding parts for grinding workpieces. The frames are arranged on the machine base, and the two grinding assemblies are opposite to each other left and right and are respectively arranged on the left and right sides of the moving path of the workpiece carrier.

[0012] According to some embodiments of the present utility model, the left and right side surface grinding devices and the front and back side surface grinding devices are respectively provided with a left and right adjustment mechanism for adjusting the left and right positions of the grinding assemblies, and an up and down adjustment mechanism for adjusting the up and down positions of the grinding assemblies.

[0013] According to some embodiments of the present utility model, the left and right side surface grinding devices and the front and rear side surface grinding devices are respectively provided with an up-and-down driving mechanism for driving the grinding assembly to reciprocate up and down.

[0014] According to some embodiments of the present utility model, the left and right side surface grinding devices and the front and rear side surface grinding devices are respectively provided with upper limit strips. The upper limit strips extend in the front-rear direction and are arranged on the upper side of the moving path of the workpiece carrier for limiting the workpiece.

[0015] The additional aspects and advantages of the present utility model will be partly given in the following description, partly become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0017] Figure 1 is a three-dimensional schematic diagram of an embodiment of the present utility model;

[0018] Figure 2 is an exploded schematic diagram of an embodiment of the present utility model;

[0019] Figure 3 is a structural schematic diagram of partial components of an embodiment of the present utility model;

[0020] Figure 4 is a three-dimensional schematic diagram of a workpiece carrier of an embodiment of the present utility model;

[0021] Figure 5 is Figure 3 a top view of the shown structure;

[0022] Figure 6 is Figure 5 an enlarged schematic diagram of part A of

[0023] Figure 7 is Figure 5 an enlarged schematic diagram of part B of

[0024] Figure 8 is a structural schematic diagram of the left and right side surface grinding devices and the front and rear side surface grinding devices of an embodiment of the present utility model.

[0025] Reference numerals:

[0026] Machine base 100;

[0027] Left and right side surface grinding device 200;

[0028] Front and rear side surface grinding device 300;

[0029] Workpiece carrier device 400, workpiece carrier 410, carrier transportation mechanism 420, conveyor belt strip 421, conveying drive structure 422, fixed seat 423, first roller 411, second roller 412, cross connection disk 413;

[0030] Guide and commutation structure 500, first guide track 510, second guide track 520, first guide groove 511, second guide groove 521;

[0031] Frame 610, grinding assembly 620, left - right adjustment mechanism 630, up - down adjustment mechanism 640, up - down drive mechanism 650, upper limit strip 660. Specific embodiments

[0032] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0033] In the description of the present utility model, it should be understood that for the orientation description, such as the up, down, front, back, left, right, etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation of the present utility model.

[0034] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more. Understand greater than, less than, exceeding, etc. as not including the present number, and understand above, below, within, etc. as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0035] In the description of the present utility model, unless otherwise clearly defined, words such as set, install, connect, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0036] Refer to Figures 1 to 8, an automatic reversing grinding machine, which includes: a machine base 100, a left and right side surface grinding device 200, a front and rear side surface grinding device 300, a workpiece conveying device 400, and a guiding and reversing structure 500. The left and right side surface grinding device 200 is arranged on the machine base 100 and is used for grinding the left and right side surfaces of the workpiece. The front and rear side surface grinding device 300 is arranged on the machine base 100 and is used for grinding the front and rear side surfaces of the workpiece; the front and rear side surface grinding device 300 and the left and right side surface grinding device 200 are arranged in sequence in the front and rear directions. The workpiece conveying device 400 includes a workpiece carrier 410 and a carrier conveying mechanism 420. The carrier conveying mechanism 420 is arranged on the machine base 100, and the workpiece carrier 410 is arranged on the carrier conveying mechanism 420. The carrier conveying mechanism 420 is used to drive the workpiece carrier 410 to sequentially pass through the left and right side surface grinding device 200 and the front and rear side surface grinding device 300. The guiding and reversing structure 500 is arranged on the machine base 100, and the guiding and reversing structure 500 is configured to guide the workpiece carrier 410 to rotate 90 degrees when the workpiece carrier 410 passes through the position between the left and right side surface grinding device 200 and the front and rear side surface grinding device 300.

[0037] When grinding the workpiece, the workpiece is first loaded on the workpiece carrier 410, and then the carrier conveying mechanism 420 drives the workpiece carrier 410 to move back and forth, so that it sequentially passes through the left and right side surface grinding device 200 and the front and rear side surface grinding device 300. When passing through the left and right side surface grinding device 200, the left and right side surfaces of the workpiece are ground. When passing through the position between the left and right side surface grinding device 200 and the front and rear side surface grinding device 300, the workpiece carrier 410 is guided by the guiding and reversing structure 500 to rotate 90 degrees, realizing the guiding and reversing of the workpiece during the traveling process. Then the workpiece passes through the front and rear side surface grinding device 300 to complete the grinding of the front and rear side surfaces. The automatic reversing grinding machine of the embodiment of the present invention realizes reversing during the traveling process of the workpiece through the guiding and reversing structure 500. Compared with the method of using a reversing manipulator, there is no process of grasping and placing the workpiece, and the efficiency is higher. Moreover, the use of a guiding structure for reversing instead of a reversing manipulator also makes the equipment cost lower.

[0038] In the embodiment, the guiding and reversing structure 500 is used to guide the workpiece carrier 410 to rotate 90 degrees. It can be imagined that in some embodiments, the guiding and reversing structure 500 can also be used to guide the workpiece to rotate 90 degrees, which can be specifically configured according to the actual situation.

[0039] In an embodiment, the workpiece carrier 410 is rotatably arranged. The guiding and commutation structure 500 includes a first guiding track 510 and a second guiding track 520. The first guiding track 510 and the second guiding track 520 are arranged in sequence in the front-rear direction. The first guiding track 510 and the second guiding track 520 are respectively arranged corresponding to the left and right side surface grinding devices 200 and the front and rear side surface grinding devices 300. The first guiding track 510 is used to guide and hold the workpiece carrier 410 at a first angular position, and the second guiding track 520 is used to guide and hold the workpiece carrier 410 at a second angular position. The angular position difference between the second angular position and the first angular position is 90 degrees. When the workpiece carrier 410 passes through the left and right side surface grinding devices 200, it can cooperate with the corresponding first guiding track 510 to be held at the first angular position, ensuring the stability of the angular position during the grinding of the left and right side surfaces. When the workpiece carrier 410 passes through the front and rear side surface grinding devices 300, it is switched to the second angular position through the second guiding track 520, and the second angular position and the first angular position differ by 90 degrees, thereby realizing commutation. At the same time, the workpiece carrier 410 can be held at a stable angular position through the second guiding track 520. With the above structure, the rotatable workpiece carrier 410 can maintain the angular position through the first guiding track 510 and the second guiding track 520, effectively ensuring the grinding quality.

[0040] In an embodiment, the carrier transportation mechanism 420 includes an annular conveyor belt strip 421 and a conveying drive structure 422 for driving the conveyor belt strip 421 to move in a cycle. The conveyor belt strip 421 is arranged in the front-rear direction. A plurality of workpiece carriers 410 are arranged along the conveyor belt strip 421 and arranged on the conveyor belt strip 421. The conveyor belt strip 421 passes through the left and right side surface grinding devices 200 and the front and rear side surface grinding devices 300. The two ends of the conveyor belt strip 421 in the front-rear direction respectively extend outside the left and right side surface grinding devices 200 and the front and rear side surface grinding devices 300. Driven by the conveying drive structure 422, the conveyor belt strip 421 moves in a cycle, driving each workpiece carrier 410 to pass through the left and right side surface grinding devices 200 and the front and rear side surface grinding devices 300 in turn to grind the workpiece. Workers or the loading manipulator can load workpieces onto the workpiece carrier 410 at one end of the conveyor belt strip 421 in the front-rear direction. The completed ground workpieces can be sent out from the other end of the conveyor belt strip 421 in the front-rear direction, and then collected through a collection box, manually or by a manipulator.

[0041] In the embodiment, a fixing seat 423 corresponding to the workpiece carrier 410 one by one is arranged on the conveyor belt strip 421, and the workpiece carrier 410 is pivotally connected to the corresponding fixing seat 423 so as to be rotatable. In the embodiment, the carrier transportation mechanism 420 is specifically a chain conveyor, then the conveyor belt strip 421 is specifically a chain, and the conveying drive structure 422 is specifically a structure for driving the chain to move in a cycle, which specifically includes a motor and a plurality of sprockets. The chain is tensioned on the sprockets, and the motor drives one of the sprockets to rotate, so that the chain can move in a cycle. Of course, it can be imagined that the conveyor belt strip 421 is not limited to using a chain. For example, it can also be a conveyor belt or a chain plate, and the conveying drive structure 422 can be arranged corresponding to the corresponding structure.

[0042] In the embodiment, the first guiding track 510 and the second guiding track 520 are respectively provided with a first guiding groove 511 and a second guiding groove 521 extending in the front-rear direction. Both ends of each of the first guiding groove 511 and the second guiding groove 521 are open and form an input end opening and an output end opening. The input end openings of the first guiding groove 511 and the second guiding groove 521 are both tapered flared structures. The first guiding groove 511 and the second guiding groove 521 are located on the moving path of the workpiece carrier 410. The workpiece carrier 410 is provided with four rollers, and the rollers are cross-distributed around the rotation axis of the workpiece carrier 410. Among the cross-distributed rollers, two of the rollers radially opposite along the rotation axis of the workpiece carrier 410 are the first rollers 411, and the other two rollers are the second rollers 412. The two first rollers 411 are used to cooperate with the first guiding groove 511, and the diameter of the first rollers 411 is adapted to the width of the first guiding groove 511. The distance L1 between the mutually facing ends of the two first rollers 411 is less than the maximum width S1 of the input end opening of the first guiding groove 511. The two second rollers 412 are used to cooperate with the second guiding groove 521, and the diameter of the second rollers 412 is adapted to the width of the second guiding groove 521. The distance L2 between the mutually facing ends of the two second rollers 412 is less than the maximum width S2 of the input end opening of the second guiding groove 521.

[0043] When the workpiece carrier 410 moves forward and backward, it can enter the first guide groove 511 through the input end opening of the first guide groove 511. If the two first rollers 411 maintain the front-to-back arrangement, they can directly enter the first guide groove 511. The two first rollers 411 can be guided and moved along the first guide groove 511. If the two first rollers 411 do not maintain the front-to-back arrangement, they can be guided by the conical expansion input end opening and rotated to the correct angle position to enter the first guide groove 511, which is the first angle position mentioned above. When the workpiece carrier 410 leaves the first guide groove 511, the two second rollers 412 are in the left-right arrangement state. When the workpiece carrier 410 enters the second guide groove 521, the two second rollers 412 correct their positions through the same conical expansion input end opening of the second guide groove 521. The two second rollers 412 can be changed to the front-to-back arrangement state to enter the second guide groove 521. At this time, the workpiece carrier 410 is in the second angle position mentioned above. Through the above structure, the workpiece carrier 410 can maintain a first angle position at the first guide rail 510 and maintain a second angle position at the second guide rail 520. At the same time, the workpiece carrier 410 can automatically guide and rotate 90 degrees to complete the reversal when moving from the first guide rail 510 to the second guide rail 520. The above structure has a simple setting of the guide structure and is easy to implement.

[0044] It is conceivable that the guide reversing structure 500 is not limited to the above-mentioned embodiments. For example, in some embodiments, the guide reversing structure 500 is a dial wheel or a dial handle. When the workpiece carrier 410 passes through the dial wheel or the dial handle, the dial wheel or the dial handle drives the workpiece carrier 410 to rotate 90 degrees, thereby achieving reversal. It is understandable that in the art, there are many other embodiments for guiding a component to rotate a predetermined angle, and those skilled in the art can configure according to actual conditions.

[0045] In the embodiment, the rotation axis of the workpiece carrier 410, the axis of the first roller 411 and the axis of the second roller 412 are all arranged vertically, the two first rollers 411 and the first guide groove 511 are at a first height position, the two second rollers 412 and the second guide groove 521 are at a second height position, and the second height position is not at the same height as the first height position. With the above structure, the first guide groove 511 and the second guide groove 521 are arranged staggered up and down, which can ensure the corresponding matching arrangement with the first roller 411 and the second roller 412, thereby ensuring the orderly operation of the mechanism.

[0046] In an embodiment, the workpiece carrier 410 is provided with a cross connecting plate 413. Two first rollers 411 and two second rollers 412 are connected to four ends of the cross connecting plate 413. The first rollers 411 and the second rollers 412 are respectively located on the upper and lower sides of the cross connecting plate 413. With the above structure, by installing the first rollers 411 and the second rollers 412 on the upper and lower sides of the cross connecting plate 413, different height positions can be simply formed, and the installation of the first rollers 411 and the second rollers 412 is convenient.

[0047] In an embodiment, the left and right side grinding device 200 and the front and back side grinding device 300 each include a frame 610 and two grinding assemblies 620 provided on the frame 610. The grinding assembly 620 is provided with a grinding part for grinding the workpiece. The frame 610 is arranged on the machine base 100. The two grinding assemblies 620 are opposite to each other left and right and are respectively arranged on the left and right sides of the moving path of the workpiece carrier 410. With the above structure, the left and right side grinding device 200 and the front and back side grinding device 300 both use two sets of grinding assemblies 620 opposite to each other left and right for grinding, and can grind two sides simultaneously, with high efficiency.

[0048] In an embodiment, the grinding part can be a sand belt or a grinding wheel. When the grinding part is a sand belt, the grinding assembly 620 can be provided with a motor, a driving wheel and a driven wheel. The driving wheel and the driven wheel are rotatably arranged, and the motor drives the driving wheel to rotate. The sand belt is tensioned between the driving wheel and the driven wheel. When the grinding part is a grinding wheel, the grinding assembly 620 can be provided with a motor, and the grinding wheel is connected to the main shaft of the motor, so as to drive the grinding wheel to rotate for grinding.

[0049] In an embodiment, the left and right side grinding device 200 and the front and back side grinding device 300 are each provided with a left and right adjusting mechanism 630 for adjusting the left and right positions of the grinding assembly 620, and an up and down adjusting mechanism 640 for adjusting the up and down positions of the grinding assembly 620. With the above structure, the position of the grinding assembly 620 can be conveniently adjusted to adapt to the workpiece.

[0050] In an embodiment, the left and right and up and down positions of the grinding assembly 620 can be adjusted by setting a lead screw adjusting mechanism or a screw adjusting mechanism. It can be imagined that in this field, there are many implementation ways to realize the position adjustment of components, and those skilled in the art can configure according to the actual situation.

[0051] In an embodiment, the left and right side surface grinding devices 200 and the front and rear side surface grinding devices 300 are respectively provided with an up-and-down driving mechanism 650 for driving the grinding assembly 620 to reciprocate up and down. With the above structure, when grinding the side surface of the workpiece, the grinding part of the grinding assembly 620 can move up and down to achieve reciprocating grinding up and down, improving the grinding quality and efficiency. In the embodiment, the grinding assembly 620 is slidably arranged up and down on the frame 610. The up-and-down driving mechanism 650 may specifically include a motor and a connecting rod group. The motor is connected to the grinding assembly 620 through the connecting rod group to form a crank-slider mechanism, so as to drive the grinding assembly 620 to move up and down. Of course, it can be imagined that it is not limited to using the above structure to drive the grinding assembly 620 to move up and down. For example, the up-and-down driving mechanism 650 uses a cylinder, an electric push rod, etc. It can be imagined that in this field, there are many implementation ways for the driving part to move up and down, and those skilled in the art can configure according to the actual situation.

[0052] In an embodiment, the left and right side surface grinding devices 200 and the front and rear side surface grinding devices 300 are respectively provided with an upper limit strip 660. The upper limit strip 660 extends in the front-rear direction and is arranged on the upper side of the moving path of the workpiece carrier 410 for limiting the workpiece. The workpiece can be limited by the upper limit strip 660, which can effectively ensure the position stability of the workpiece, thus ensuring the grinding quality.

[0053] The technical features of the above embodiments can be combined arbitrarily. For the sake of brief description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0054] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. An automatic reversing grinding machine, characterized in that: include: A machine base (100); A left and right side grinding device (200), which is arranged on the machine base (100) and is used for grinding the left and right sides of a workpiece; A front and rear side grinding device (300) is arranged on the machine base (100) and is used to grind the front and rear sides of the workpiece; the front and rear side grinding device (300) and the left and right side grinding device (200) are arranged in sequence in the front-to-back direction; A workpiece carrier (400), comprising a workpiece carrier (410) and a carrier transport mechanism (420), wherein the carrier transport mechanism (420) is arranged on the machine base (100), the workpiece carrier (410) is arranged on the carrier transport mechanism (420), and the carrier transport mechanism (420) is used to drive the workpiece carrier (410) to sequentially pass through the left and right side grinding devices (200) and the front and rear side grinding devices (300); A guide reversing structure (500) is disposed on the machine base (100), and the guide reversing structure (500) is configured to guide the workpiece carrier (410) or the workpiece on the workpiece carrier (410) to rotate 90 degrees when the workpiece carrier (410) passes through a position between the left and right side grinding devices (200) and the front and rear side grinding devices (300).

2. The automatic reversing grinding machine according to claim 1, characterized in that: The workpiece carrier (410) is rotatably arranged, and the guide reversing structure (500) includes a first guide rail (510) and a second guide rail (520), the first guide rail (510) and the second guide rail (520) are arranged sequentially in the front-to-back direction, the first guide rail (510) and the second guide rail (520) are respectively arranged corresponding to the left and right side grinding devices (200) and the front and rear side grinding devices (300), the first guide rail (510) is used to guide and maintain the workpiece carrier (410) at a first angular position, and the second guide rail (520) is used to guide and maintain the workpiece carrier (410) at a second angular position, and the angular position difference between the second angular position and the first angular position is 90 degrees.

3. The automatic reversing grinding machine according to claim 1 or 2, characterized in that: The carrier transport mechanism (420) includes an annular conveyor belt (421) and a conveying drive structure (422) for driving the conveyor belt (421) to circulate, the conveyor belt (421) is arranged along the front-to-back direction, a plurality of workpiece carriers (410) are arranged along the conveyor belt (421) and arranged on the conveyor belt (421), the conveyor belt (421) passes through the left and right side grinding devices (200) and the front and rear side grinding devices (300), and the two ends of the conveyor belt (421) in the front-to-back direction extend out of the left and right side grinding devices (200) and the front and rear side grinding devices (300), respectively.

4. The automatic reversing grinding machine according to claim 2, characterized in that: The first guide rail (510) and the second guide rail (520) are respectively provided with a first guide groove (511) and a second guide groove (521) extending in the front-rear direction; both ends of the first guide groove (511) and the second guide groove (521) are respectively provided with openings and are formed with an input end opening and an output end opening; the input end openings of the first guide groove (511) and the second guide groove (521) are respectively tapered expansion structures; the first guide groove (511) and the second guide groove (521) are located in the moving path of the workpiece carrier (410); The workpiece carrier (410) is provided with four rollers, which are cross-distributed around the rotation axis of the workpiece carrier (410), and among the cross-distributed rollers, two of the rollers radially opposite to each other along the rotation axis of the workpiece carrier (410) are first rollers (411), and the other two rollers are second rollers (412); The two first rollers (411) are used to cooperate with the first guide groove (511), the diameter of the first rollers (411) is adapted to the width of the first guide groove (511), and the distance L1 between the ends of the two first rollers (411) that are away from each other is smaller than the maximum width S1 of the input end opening of the first guide groove (511); The two second rollers (412) are used to cooperate with the second guide groove (521); the diameter of the second rollers (412) is adapted to the width of the second guide groove (521); and the distance L2 between the ends of the two second rollers (412) that are away from each other is smaller than the maximum width S2 of the input end opening of the second guide groove (521).

5. The automatic reversing grinding machine according to claim 4, characterized in that: The rotation axis of the workpiece carrier (410), the axis of the first roller (411) and the axis of the second roller (412) are all arranged up and down, the two first rollers (411) and the first guide groove (511) are at a first height position, the two second rollers (412) and the second guide groove (521) are at a second height position, and the second height position is not at the same height as the first height position.

6. The automatic reversing grinding machine according to claim 5, characterized in that: The workpiece carrier (410) is provided with a cross connection plate (413), two first rollers (411) and two second rollers (412) are connected to four ends of the cross connection plate (413), and the first rollers (411) and the second rollers (412) are respectively located on the upper and lower sides of the cross connection plate (413).

7. The automatic reversing grinding machine according to claim 1, characterized in that: The left and right side grinding devices (200) and the front and rear side grinding devices (300) respectively include a frame (610) and two grinding assemblies (620) arranged on the frame (610), wherein the grinding assemblies (620) are provided with a grinding portion for grinding a workpiece, and the frame (610) is arranged on the machine base (100). The two grinding assemblies (620) are opposite to each other on the left and right sides and are respectively arranged on the left and right sides of the moving path of the workpiece carrier (410).

8. The automatic reversing grinding machine according to claim 7, characterized in that: The left and right side grinding devices (200) and the front and rear side grinding devices (300) are respectively provided with a left and right adjustment mechanism (630) for adjusting the left and right position of the grinding assembly (620), and an up and down adjustment mechanism (640) for adjusting the up and down position of the grinding assembly (620).

9. The automatic reversing grinding machine according to claim 7, characterized in that: The left and right side grinding devices (200) and the front and rear side grinding devices (300) are respectively provided with an up and down driving mechanism (650) for driving the grinding assembly (620) to reciprocate up and down.

10. The automatic reversing grinding machine according to claim 7, characterized in that: The left and right side grinding devices (200) and the front and rear side grinding devices (300) are respectively provided with upper limit bars (660), the upper limit bars (660) extending in the front-rear direction, the upper limit bars (660) being arranged on the upper side of the moving path of the workpiece carrier (410) and used for limiting the position of the workpiece.