Pressing and grinding mechanism of reciprocating type double-sided grinding machine

Abstract

The utility model provides a material pressing and grinding mechanism of a reciprocating type double-sided grinding machine, which comprises a bottom plate capable of sliding along the front-back direction of the grinding machine, a support frame is connected onto the bottom plate, a material bearing table for supporting a workpiece is arranged on the support frame, and a positioning baffle is arranged at one end of the material bearing table. A first material pressing assembly capable of moving in the horizontal direction is arranged on the side, opposite to the positioning baffle, of the supporting frame, and a second material pressing assembly capable of ascending and descending in the vertical direction is further arranged on the portion, located above the material bearing table, of the supporting frame. And the driving assembly is used for driving the bottom plate to move back and forth so as to drive the workpiece to be fed into and moved out of the grinding channel. According to the material pressing and grinding mechanism of the reciprocating type double-sided grinding machine, a plurality of workpieces can be pressed, limited and ground at the same time, the working efficiency is effectively improved, the positioning stability of the workpieces is high, and the perpendicularity of grinding surfaces is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, and more specifically, to a pressing grinding mechanism for a reciprocating double-sided grinding machine. Background Technology

[0002] A grinding machine is a machine tool that uses abrasives to grind the surface of a workpiece. Most grinding machines use high-speed rotating grinding wheels for grinding, while a few use other abrasives and free abrasives such as oilstones, belt abrasives, honing machines, ultra-precision machining tools, belt grinders, lapping machines, and polishing machines.

[0003] Currently, the processing technology of magnets first adopts powder metallurgy for production. However, the surface roughness of the powder metallurgy products often does not meet the requirements. Therefore, it is necessary to perform end face grinding afterward to make its thickness, length or width dimensions meet the design requirements.

[0004] In the existing reciprocating grinding machine grinding structure, for example, patent CN219026908U discloses an automatic double-sided grinding machine. In this patent structure, the grinding method of the workpiece is a straight-through type. Specifically, the workpiece is limited by a limiting protrusion and a pressure rod in the grinding structure. The workpiece is pressed and limited between its end and the limiting protrusion by the movement of the pressure rod. The limiting structure is relatively simple. It can stably press and limit a single workpiece, but it cannot be used to press, limit and process multiple workpieces at the same time, resulting in low processing efficiency. Utility Model Content

[0005] To overcome at least one of the defects in the prior art, this utility model provides a clamping grinding mechanism for a reciprocating double-sided grinder, which can simultaneously clamp and limit multiple workpieces and perform grinding processing, effectively improving work efficiency and providing high positioning stability for the workpieces.

[0006] This utility model provides a pressing grinding mechanism for a reciprocating double-sided grinding machine: it is located between the feeding assembly and the discharging assembly on the front side of the grinding machine head, and is used to receive several workpieces arranged together at the outlet end of the feeding assembly, and to feed and remove them into and out of the grinding channel between two grinding discs on the rear side of the grinding machine head. It includes a base plate that can slide along the front-back direction of the grinding machine, a support frame connected to the base plate, a support frame with a workpiece support table, a positioning baffle at one end of the support table, a first pressing assembly that can move horizontally on the side of the support frame opposite to the positioning baffle, and a second pressing assembly that can be raised and lowered vertically on the support frame above the support table; it also includes a drive assembly connected to the grinding machine head, which is used to drive the base plate to move back and forth to feed and remove the workpieces into and out of the grinding channel.

[0007] Compared with the prior art, the blanking grinding mechanism of the reciprocating double-sided grinding machine of this utility model has the following advantages:

[0008] The feeding mechanism of this utility model includes a support platform for supporting multiple workpieces, with a positioning baffle at one end of the support platform and a horizontally movable first pressing component at the other end. When multiple workpieces arranged in a row are horizontally moved onto the support platform, the first pressing component drives the multiple workpieces to achieve horizontal positioning. Then, the second pressing component moves downward and presses against the upper surface of the multiple workpieces to achieve vertical positioning. Finally, the drive component drives the base plate to move towards the grinding channel, realizing simultaneous grinding of the two end faces of several workpieces. After grinding is completed, the drive component continues to drive the base plate to reverse and reset, realizing automatic removal of the workpieces. This structure not only achieves multi-directional stable positioning of multiple workpieces, but also effectively improves grinding efficiency, that is, multiple products can be ground at one time, and the horizontal bottom surface and vertical side plate of the workpiece are both positioned, effectively ensuring the verticality of the workpiece after grinding.

[0009] Furthermore, the drive assembly includes a drive gear and a rack, the rack being connected to the lower end surface of the base plate and extending along the sliding direction of the base plate, a drive motor being connected to the grinding machine frame, the drive gear being connected to the output shaft of the drive motor, and the drive gear meshing with the rack.

[0010] As an improvement, the top plate of the grinding machine frame is connected to two linear slide rails extending in the front-rear direction, and the lower end surface of the base plate is connected to two sets of sliders that are slidably connected to the two linear slide rails respectively.

[0011] In a further improvement, the support frame includes a horizontally arranged crossbar, the material receiving platform is connected to the upper surface of the front end of the crossbar, the rear end of the crossbar is connected to a vertically arranged fixing plate, the fixing plate is connected to a horizontally arranged first drive cylinder, the free end of the first drive cylinder is connected to a first actuating rod that moves in the horizontal direction, and the front end of the first actuating rod is connected to a first pressure block for horizontally pressing the rear end of the workpiece.

[0012] Furthermore, the second pressing assembly includes a second drive cylinder horizontally disposed on the fixed plate, the free end of the second drive cylinder being connected to a second actuating rod that moves in the horizontal direction, and a vertically liftable second pressing block disposed above the material receiving platform, the second actuating rod being used to drive the second pressing block to vertically press against the upper end of the workpiece.

[0013] In a further improvement, the crossbar is connected to two first vertical rods located on the front and rear sides of the material receiving platform, respectively. Each of the two first vertical rods has a first through hole at its upper end. The free end of the second actuating rod slides through the two first through holes. Each of the two first vertical rods has a vertically extending second through hole at its upper end, below the first through holes. A vertically movable rod is connected to each of the two second through holes. Two sets of linkage plates are hinged to the movable rod, with their upper ends hinged to the free end of the second actuating rod. Both sets of linkage plates are inclined towards one side of the fixed plate. The second pressure plate is connected to the lower end face of the movable rod. When the second actuating rod moves towards or away from the material receiving platform, the movable rod moves downwards to press the second pressure block against the upper surface of the workpiece or moves upwards to move the second pressure block away from the upper surface of the workpiece. A third through hole is also provided at the lower end of the first vertical rod near the fixed plate, and the free end of the first actuating rod slides through the third through hole.

[0014] Preferably, both the first and second pressure blocks have detachable rubber pads attached to the side closest to the workpiece.

[0015] Other improvements and advantages of this invention will be set forth in the detailed description that follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures particularly pointed out in the description and drawings. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the material clamping grinding mechanism of the reciprocating double-sided grinding machine of this utility model applied to the grinding machine.

[0017] Figure 2 This is a schematic diagram of the material pressing and grinding mechanism of the reciprocating double-sided grinding machine of this utility model;

[0018] Figure 3 This is a partial enlarged view of the pressure grinding mechanism of the reciprocating double-sided grinder of this utility model;

[0019] Figure 4 for Figure 2 Another schematic diagram of the pressure grinding mechanism of a reciprocating double-sided grinder.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Grinding machine frame; 2. Grinding disc; 3. Base plate; 4. Material support platform; 5. Positioning baffle; 6. Rack; 8. Linear slide rail; 9. Crossbar; 10. Fixing plate; 11. First drive cylinder; 12. First actuating rod; 13. First pressure block; 14. Second drive cylinder; 15. Second actuating rod; 16. Second pressure block; 17. First vertical rod; 18. First through hole; 19. Second through hole; 20. Movable rod; 21. Linkage plate; 22. Third through hole; 23. Second vertical rod; 24. Fourth through hole; 25. Feeding assembly; 26. Discharge assembly. Detailed Implementation

[0022] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0023] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "fixed" and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0024] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] See Figures 1-4 As shown in the embodiment of this application, a pressing grinding mechanism for a reciprocating double-sided grinding machine is disclosed. It is located between the feeding assembly 25 and the discharging assembly 26, which are distributed on the left and right sides of the front side of the grinding machine frame 1. It is used to receive a number of workpieces arranged together at the outlet end of the feeding assembly 25 and to feed the entire row of workpieces into the grinding channel between the two grinding discs 2 on the rear side of the grinding machine frame 1 for grinding. After the grinding is completed, the feeding mechanism moves the entire row of workpieces out of the grinding channel to the initial position. At this time, the feeding assembly 25 continues to move the next row of workpieces to the feeding mechanism, while the workpieces that have been ground in the previous row are squeezed out onto the discharging assembly 26.

[0026] Specifically, the pressing grinding mechanism includes a base plate 3 that can slide along the front-back direction of the grinding machine. A support frame is connected to the base plate 3. A support table 4 for supporting the workpiece is provided on the support frame. A positioning baffle 5 is provided at one end of the support table 4. A first pressing component that can move in the horizontal direction is provided on the side of the support frame opposite to the positioning baffle 5. A second pressing component that can be raised and lowered in the vertical direction is also provided on the support frame above the support table 4. The mechanism also includes a drive component connected to the grinding machine frame 1. The drive component is used to drive the base plate 3 to move back and forth to drive the workpiece to be fed into and removed from the grinding channel. When several neatly arranged workpieces on the feeding assembly 25 enter the receiving table 4, the first pressure assembly moves horizontally until it presses against the side of the workpiece away from the positioning baffle 5, thus limiting the horizontal movement of the workpieces. Then, the second pressing assembly moves down to press against the upper end face of the workpieces, further limiting the vertical movement of the workpieces. Finally, the drive assembly drives the base plate 3 to move towards the grinding channel, so that the two end faces of the workpieces are ground synchronously. After the grinding is completed, the drive assembly continues to drive the base plate 3 to reverse and reset, so that the workpieces are automatically removed.

[0027] Most importantly, in this embodiment, when positioning the workpiece, the workpiece is clamped and limited in both the horizontal and vertical directions, and the horizontal bottom surface and vertical side surface of the workpiece have a reference, thereby ensuring that the workpiece is positioned stably and reliably. As a result, the vertical accuracy of the workpiece after grinding is much higher than that of the traditional straight-through double-end grinding method.

[0028] In this embodiment, see Appendix Figure 1 and 4 The drive assembly includes a drive gear and a rack 6. The rack 6 is connected to the lower end surface of the base plate 3 and extends along the sliding direction of the base plate 3. In addition, a drive motor (not shown in the figure) is connected to the grinding machine frame 1. The drive gear is connected to the output shaft of the drive motor and meshes with the rack 6. The forward and reverse rotation of the drive motor drives the gear to move the rack 6 in the direction closer to and away from the grinding channel, realizing the feeding and transfer of several workpieces. The structure is simple and the drive is stable and reliable.

[0029] In this structure, in order to further ensure the stability of the back-and-forth movement of the base plate 3, two linear slide rails 8 extending in the front-and-back direction are connected to the top plate of the grinding machine frame 1, and two sets of slider groups that are slidably connected to the two linear slide rails 8 are connected to the lower end surface of the base plate 3.

[0030] For more details in this embodiment, please refer to the appendix. Figure 3The support frame includes a horizontally arranged crossbar 9, and a material receiving platform 4 is connected to the upper surface of the front end of the crossbar 9. The first pressing assembly includes a first drive cylinder 11, a first actuating rod 12, and a first pressing block 13. The rear end of the crossbar 9 is connected to a vertically arranged fixed plate 10. The first drive cylinder 11 is horizontally connected to the fixed plate 10. The first actuating rod 12 is connected to the free end of the first drive cylinder 11. The first pressing block 13 is connected to the front end of the first actuating component. When several workpieces are transferred to the material receiving platform 4, the first drive cylinder 11 drives the first actuating cylinder to move forward until the first pressing block 13 presses against the rear end of the last workpiece to achieve horizontal pressing and limiting of multiple workpieces.

[0031] Similarly, in this embodiment, the second pressing assembly includes a second drive cylinder 14 horizontally disposed on the fixed plate 10. The free end of the second drive cylinder 14 is connected to a second actuating rod 15 that moves in the horizontal direction. A vertically liftable second pressing block 16 is disposed above the receiving platform 4. The second actuating rod 15 is used to drive the second pressing block 16 to move up and down to realize vertical pressing and limiting and releasing of the limit for multiple workpieces. In subsequent operations, the workpieces on the receiving platform 4 can only be unloaded after the horizontal and vertical limits are released.

[0032] See appendix for further details. Figure 3 Two first vertical rods 17 are connected to the crossbar 9, located on the front and rear sides of the material receiving platform 4 respectively. Each of the two first vertical rods 17 has a first through hole 18 at its upper end. The free end of the second actuating rod 15 slides through the two first through holes 18. Each of the two first vertical rods 17 has a vertically extending second through hole 19 at its upper end and below the first through holes 18. A vertically movable movable rod 20 is connected to each of the two second through holes 19. Two sets of linkage plates 21 are hinged to the movable rod 20, and the upper ends of the two sets of linkage plates 21 are respectively hinged to the second actuating rod 15. The free end of 5, and both sets of linkage plates 21 are inclined toward one side of the fixed plate 10 to form a parallelogram driving structure. The second pressure plate is connected to the lower end face of the movable rod 20. When the second actuating rod 15 moves toward the direction close to the material support table 4, the movable rod 20 moves down to drive the second pressure block 16 to press against the upper surface of the workpiece, realizing vertical pressing limit; or moves up to drive the second pressure block 16 away from the upper surface of the workpiece; when the second actuating rod 15 moves away from the material support table 4, the movable rod 20 moves up to reset and release the vertical limit on multiple workpieces.

[0033] On another note, in the above structure, a third through hole 22 is provided at the lower end of the first vertical rod 17 near the fixed plate 10. The free end of the first actuating rod 12 slides through the third through hole 22 to guide and limit the horizontal movement of the first actuating rod 12, thus ensuring the stability of its horizontal movement.

[0034] In this embodiment, the base plate 3 has a relatively large span in the length direction, meaning the lengths of the first actuating rod 12 and the second braking rod are relatively large. To further ensure the smooth movement of the two actuating rods, a second vertical rod 23 is added between the first vertical rod 17 on the side of the horizontal rod 9 closest to the fixed plate 10 and the fixed plate 10. The second vertical rod has a fourth through hole 24 for horizontal sliding engagement of the second actuating rod 15 and the first actuating rod 12, respectively. (See attached diagram) Figure 2 As shown.

[0035] In addition, in this embodiment, rubber pads are detachably connected to the side of the first pressure block 13 and the second pressure block 16 closest to the workpiece. The relatively soft rubber material directly contacts the workpiece surface, which can avoid damage to the outer surface of the workpiece.

[0036] In the description of this application, the reference to the term "this embodiment" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A pressing grinding mechanism for a reciprocating double-sided grinding machine, located between a feeding assembly (25) and a discharging assembly (26) on the front side of the grinding machine head (1), for receiving a plurality of workpieces arranged together at the outlet end of the feeding assembly (25) and feeding them into and removing them from the grinding channel between two grinding discs (2) on the rear side of the grinding machine head (1), characterized in that: The system includes a base plate (3) that can slide along the front-back direction of the grinding machine. A support frame is connected to the base plate (3). A support platform (4) for supporting the workpiece is provided on the support frame. A positioning baffle (5) is provided at one end of the support platform (4). A first pressing component that can move in the horizontal direction is provided on the side of the support frame opposite to the positioning baffle (5). A second pressing component that can be raised and lowered in the vertical direction is also provided on the support frame above the support platform (4). The system also includes a drive component connected to the grinding machine frame (1). The drive component is used to drive the base plate (3) to move back and forth to drive the workpiece into and out of the grinding channel.

2. The material clamping grinding mechanism of the reciprocating double-sided grinding machine according to claim 1, characterized in that: The drive assembly includes a drive gear and a rack (6). The rack (6) is connected to the lower end surface of the base plate (3) and extends along the sliding direction of the base plate (3). A drive motor is connected to the grinding machine frame (1). The drive gear is connected to the output shaft of the drive motor and meshes with the rack (6).

3. The material clamping grinding mechanism of the reciprocating double-sided grinding machine according to claim 2, characterized in that: The top plate of the grinding machine frame (1) is connected to two linear slide rails (8) extending in the front-back direction, and the lower end surface of the base plate (3) is connected to two sets of sliders that are slidably connected to the two linear slide rails (8).

4. The material clamping grinding mechanism of the reciprocating double-sided grinding machine according to claim 1, characterized in that: The support frame includes a horizontally arranged crossbar (9), the material receiving platform (4) is connected to the upper surface of the front end of the crossbar (9), the rear end of the crossbar (9) is connected to a vertically arranged fixing plate (10), the fixing plate (10) is connected to a horizontally arranged first drive cylinder (11), the free end of the first drive cylinder (11) is connected to a first actuating rod (12) that moves in the horizontal direction, and the front end of the first actuating rod (12) is connected to a first pressure block (13) for horizontally pressing the rear end of the workpiece.

5. The blanking grinding mechanism of the reciprocating double-sided grinding machine according to claim 4, characterized in that: The second pressing assembly includes a second drive cylinder (14) horizontally disposed on the fixed plate (10). The free end of the second drive cylinder (14) is connected to a second actuating rod (15) that moves in the horizontal direction. A vertically liftable second pressing block (16) is disposed above the material receiving platform (4). The second actuating rod (15) is used to drive the second pressing block (16) to vertically press against the upper end of the workpiece.

6. The blanking grinding mechanism of the reciprocating double-sided grinding machine according to claim 5, characterized in that: Two first vertical rods (17) are connected to the crossbar (9) and located on the front and rear sides of the support platform (4). The upper ends of the two first vertical rods (17) are provided with first through holes (18). The free end of the second actuating rod (15) slides through the two first through holes (18). The upper ends of the two first vertical rods (17) and below the first through holes (18) are provided with vertically extending second through holes (19). Vertically movable movable rods (20) are connected to the two second through holes (19). Two sets of linkage plates (21) are hinged to the movable rods (20). The upper ends of the two sets of linkage plates (21) are respectively hinged to the first vertical rods (4). The free ends of the two actuator rods (15) are inclined toward one side of the fixed plate (10), and the second pressure plate is connected to the lower end face of the movable rod (20). When the second actuator rod (15) moves toward the material support platform (4), the movable rod (20) moves down to drive the second pressure block (16) to press against the upper surface of the workpiece or moves up to drive the second pressure block (16) away from the upper surface of the workpiece. The lower end of the first vertical rod (17) near the fixed plate (10) is also provided with a third through hole (22), and the free end of the first actuator rod (12) slides through the third through hole (22).

7. The material clamping grinding mechanism of the reciprocating double-sided grinding machine according to claim 6, characterized in that: Both the first pressure block (13) and the second pressure block (16) have rubber pads detachably connected to the side of the workpiece.

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