A cross feed structure for a bench grinder

Abstract

The utility model discloses a kind of transverse feeding structure for bench grinder, it is related to bench grinder technical field.The utility model includes pedestal, the pedestal upper portion is provided with placing mechanism, the left side and right side of the placing mechanism are provided with shielding mechanism, the inside of the pedestal is hollowly arranged, and feeding mechanism is arranged in the cavity in the pedestal.The utility model is provided with feeding mechanism, specifically is the sprocket of right side is rotated by starting motor, then chain is driven and moves with fixed block, and fixed block is moved by the sliding groove of U-shaped plate on push axle, at this time, workbench is pushed and fed horizontally, when fixed block moves to the outside of sprocket, because push axle slides in the sliding groove on U-shaped plate, thus can make fixed block drive push axle smoothly move to the rear position of sprocket, to drive workbench reverse feed, this process is more smooth, greatly reduce the situation of stagnation, and avoid the inertia generated after switching moving direction stops, improve the service life of equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of bench grinders, and in particular relates to a transverse feed structure for bench grinders. Background Technology

[0002] The transverse feed mechanism of a bench grinder is a mechanism used to control the movement of the grinding wheel relative to the workpiece in the horizontal direction (i.e., transverse).

[0003] Traditional table grinders typically use a motor-driven lead screw to move the table. When the lead screw moves the table to its limit position, the motor needs to reverse the lead screw to move the table in the opposite direction, repeating this process to achieve transverse reciprocating motion. However, this method causes the table to pause during the transition between reciprocating motions, resulting in an uneven reciprocating motion. Furthermore, the pauses, due to inertia, cause some impact, which can slightly damage the lead screw and motor, thus reducing their service life. Therefore, we propose a transverse feed structure for table grinders. Utility Model Content

[0004] The purpose of this invention is to provide a transverse feed structure for a bench grinder. Specifically, the feed mechanism involves starting a motor to drive the right-side sprocket, which in turn drives the chain and a fixed block. The fixed block then pushes a U-shaped plate via a push shaft, causing the worktable to be fed laterally. When the fixed block moves to the outside of the sprocket, the push shaft slides within a groove on the U-shaped plate, allowing the fixed block to smoothly move the push shaft to a position behind the sprocket, thus driving the worktable to feed in the opposite direction. This process is smoother, significantly reducing stalling and avoiding inertia after stopping during direction changes, effectively improving the equipment's lifespan. It solves the problem that traditional bench grinder transverse feed structures typically use a motor-driven lead screw to move the worktable, which can cause stalling during reciprocating motion, resulting in less smooth reciprocating movements.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a transverse feed structure for a bench grinder, comprising a machine base, a placement mechanism on top of the machine base, and shielding mechanisms on the left and right sides of the placement mechanism. The machine base has an internal cavity, and a feed mechanism is disposed within the cavity. The feed mechanism includes two support plates fixedly connected to the inner wall cavity of the machine base. A motor is fixedly connected to the bottom of the support plate on the right side, which can be understood as the motor being mounted on the support plate by bolts. A sprocket is disposed above both support plates. The bottom of the sprocket on the left side is rotatably connected to the support plate on the left side via a connecting shaft. The sprocket on the right side is fixedly connected to the top output end of the motor by bolts. A chain is meshed and driven by the outer sides of the two sprockets. A fixing block is fixedly connected to the outer surface of the chain, and a push shaft is fixedly connected to the top of the fixing block, which can be understood as the push shaft being welded to the top of the fixing block.

[0007] Furthermore, two limiting protrusions are fixedly connected to the outer surface of the push shaft, and L-shaped stabilizing frames are slidably limited and fitted on the front and back sides of the inner wall of the chain. The bottom of the two L-shaped stabilizing frames is fixedly connected to the top of the two support plates. The stabilizing frames can be fixed to the support plates by bolts or by welding. The L-shaped stabilizing frames can limit and support the chain.

[0008] Furthermore, the placement mechanism includes a workbench, with a U-shaped plate fixedly connected to the bottom of the workbench. A groove is provided inside the U-shaped plate, and the push shaft is slidably limited and fitted inside the groove. The top and bottom of the two limiting protrusions are distributed on the inner side and bottom of the U-shaped plate. The limiting protrusions are installed on the push shaft by bolts, which facilitates subsequent maintenance and other work, and also facilitates subsequent assembly. The limiting protrusions play a limiting role for the push shaft.

[0009] Furthermore, ball bearing sliders and limit blocks are fixedly connected to the four corners of the bottom of the worktable, and rubber buffer pads are fixedly connected to the outer sides of each of the four limit blocks. Two slide rails are fixedly connected to the top of the machine base. The ball bearing sliders are slidably connected to the slide rails through balls. Limit blocks are fixedly connected to the left and right sides of the slide rails. The bottom of the limit blocks is fixedly connected to the top of the machine base, and rubber buffer pads are fixedly connected to the outer sides of the limit blocks. The rubber buffer pads can effectively buffer each other after they come into contact, avoiding severe collisions. Furthermore, the two blocks will not come into contact during normal lateral feed of the worktable.

[0010] Furthermore, the shielding mechanism includes a shielding plate and a fixed base. The top of the fixed base is fixedly connected to the bottom of the workbench, and a positioning groove is provided inside the fixed base. Both the positioning groove and the positioning insert are L-shaped, which can support the shielding plate after it is installed on the fixed base, facilitating the subsequent installation of bolts.

[0011] Furthermore, a positioning insert is fixedly connected to the side of the baffle plate near the fixed base. The positioning insert engages with the positioning groove. Several insertion holes are provided inside the side of the baffle plate near the fixed base. Several threaded holes corresponding to the insertion holes are provided on the side of the fixed base near the baffle plate. The baffle plate is inclined, with the side of the baffle plate near the worktable higher than the side away from the worktable. The insertion holes are used to insert bolts, which are then connected to the threaded holes on the fixed base to install and fix the baffle plate. The inclined baffle plate can guide and discharge debris.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model, through the setting of a feeding mechanism, specifically, starts the motor to drive the right-side sprocket to rotate, which in turn drives the chain and moves the fixed block together. The fixed block then pushes the U-shaped plate to move through the push shaft. At this time, the worktable is pushed laterally for feeding. When the fixed block moves to the outside of the sprocket, the push shaft slides in the groove on the U-shaped plate, which allows the fixed block to drive the push shaft to move smoothly to the rear position of the sprocket, thereby driving the worktable to feed in the opposite direction. This process is smoother, greatly reduces the occurrence of stagnation, and avoids the inertia generated after changing the direction of movement and stopping, effectively improving the service life of the equipment.

[0014] 2. This utility model uses an L-shaped stabilizer to limit the chain during transmission, reducing chain vibration and making the transmission more stable. It also supports and limits the chain, keeping it taut and preventing it from sagging, thus improving transmission stability.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the base of this utility model;

[0019] Figure 3This is a schematic diagram of the bottom structure of the workbench of this utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the U-shaped plate of this utility model;

[0021] Figure 5 This is a schematic diagram of the overall structure of the shielding plate of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Base; 2. Placement mechanism; 21. Worktable; 22. U-shaped plate; 23. Slide groove; 24. Ball bearing slider; 25. Limiting block one; 26. Rubber buffer pad one; 3. Covering mechanism; 31. Covering plate; 311. Positioning insert; 312. Insertion hole; 32. Fixed seat; 33. Positioning groove; 4. Feeding mechanism; 41. Support plate; 42. Motor; 43. Sprocket; 44. Chain; 441. Fixed block; 442. Push shaft; 443. Limiting protrusion ring; 45. L-shaped stabilizer; 5. Slide rail; 51. Limiting block two; 52. Rubber buffer pad two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figures 1-5As shown, this utility model is a transverse feed structure for a bench grinder, including a machine base 1. A placement mechanism 2 is arranged on the top of the machine base 1. A blocking mechanism 3 is arranged on the left and right sides of the placement mechanism 2. The machine base 1 has an internal cavity. A feed mechanism 4 is arranged in the cavity of the machine base 1. The feed mechanism 4 includes two support plates 41 fixedly connected to the inner wall cavity of the machine base 1. A motor 42 is fixedly connected to the bottom of the support plate 41 on the right side. A sprocket 43 is arranged on the top of each of the two support plates 41. The bottom of the sprocket 43 on the left side is rotatably connected to the support plate 41 on the left side through a connecting shaft. The sprocket 43 on the right side is fixedly connected to the top output end of the motor 42 by bolts. A chain 44 is meshed and driven by the outer sides of the two sprockets 43. The outer surface of the chain 44 is fixed. A fixed block 441 is connected, and a push shaft 442 is fixedly connected to the top of the fixed block 441. When the start motor 42 drives the right sprocket 43 to rotate, the chain 44 is driven and drives the fixed block 441 to move together. The fixed block 441 then pushes the U-shaped plate 22 to move through the push shaft 442. At this time, the worktable 21 is pushed laterally for feeding. When the fixed block 441 moves to the outside of the sprocket 43, the push shaft 442 slides in the groove 23 on the U-shaped plate 22, so the fixed block 441 can drive the push shaft 442 to move smoothly to the position behind the sprocket 43, thereby driving the worktable 21 to feed in the opposite direction. This process is smoother, greatly reduces the occurrence of stagnation, and avoids the inertia generated after changing the direction of movement and stopping, effectively improving the service life of the equipment.

[0026] Two limiting protrusions 443 are fixedly connected to the outer surface of the push shaft 442. L-shaped stabilizers 45 are slidably limited on the front and back of the inner wall of the chain 44. The bottom of the two L-shaped stabilizers 45 is fixedly connected to the top of the two support plates 41. When the chain 44 is in motion, the L-shaped stabilizers 45 are used to limit the chain 44, so that the chain 44 can reduce vibration and be more stable during the transmission process. They also support and limit the chain 44, so that the chain 44 is always in a taut state. The support of the chain 44 can prevent the chain 44 from falling and improve the stability during transmission.

[0027] The placement mechanism 2 includes a workbench 21, with a U-shaped plate 22 fixedly connected to the bottom of the workbench 21. A groove 23 is provided inside the U-shaped plate 22, and a push shaft 442 is slidably limited and fitted inside the groove 23. Two limiting protrusions 443 are distributed on the top and bottom of the U-shaped plate 22.

[0028] The bottom of the worktable 21 is fixedly connected to four corners with ball sliders 24 and limit blocks 25 respectively. Rubber buffer pads 26 are fixedly connected to the outside of each of the four limit blocks 25. Two slide rails 5 are fixedly connected to the top of the machine base 1. The ball sliders 24 are slidably connected to the slide rails 5 through balls. Limit blocks 51 are fixedly connected to the left and right sides of the slide rails 5. The bottom of the limit blocks 51 is fixedly connected to the top of the machine base 1. Rubber buffer pads 52 are fixedly connected to the outside of the limit blocks 51.

[0029] The shielding mechanism 3 includes a shielding plate 31 and a fixed base 32. The top of the fixed base 32 is fixedly connected to the bottom of the worktable 21, and a positioning groove 33 is provided inside the fixed base 32. The shielding plate 31 acts as a shield to the inside of the machine base 1, greatly reducing the entry of debris into the machine base 1.

[0030] A positioning insert 311 is fixedly connected to the side of the baffle plate 31 near the fixed base 32. The positioning insert 311 is positioned and engaged with the positioning groove 33. Several insertion holes 312 are opened inside the side of the baffle plate 31 near the fixed base 32. Several threaded holes corresponding to the insertion holes 312 are opened on the side of the fixed base 32 near the baffle plate 31. The baffle plate 31 is inclined, and the side of the baffle plate 31 near the worktable 21 is higher than the side away from the worktable 21.

[0031] One specific application of this embodiment is:

[0032] In use, the baffle plate 31 is inserted into the positioning groove 33 on the fixing base 32 via the positioning insert 311. Then, several bolts are inserted into the insertion holes 312 and threadedly connected to the fixing base 32, thus fixing the baffle plate 31. The baffle plate 31 then acts as a shield for the inside of the machine base 1, significantly reducing the entry of debris into the machine base 1. This design also facilitates subsequent replacement or maintenance of the baffle plate 31. When the machine base 1 needs to be fed laterally, the motor 42 is started, driving the right-side sprocket 43 to rotate, thus driving the chain 44. Chain 44 drives the left sprocket 43 to rotate. During transmission, L-shaped stabilizer 45 limits the chain 44, reducing vibration and making the transmission more stable. It also supports and limits the chain 44. At the same time, chain 44 drives fixed block 441 to move together. Fixed block 441 pushes U-shaped plate 22 to move through push shaft 442. U-shaped plate 22 drives worktable 21 to move horizontally. Ball slider 24 slides on slide rail 5, making the worktable 21 move more smoothly.

[0033] When the fixed block 441 moves to the left and moves to the outside of the sprocket 43, the push shaft 442 slides in the groove 23 on the U-shaped plate 22, so the fixed block 441 can drive the push shaft 442 to move smoothly to the rear position of the sprocket 43. After the fixed block 441 moves to the rear, it drives the U-shaped plate 22 to move to the right, so that the worktable 21 moves to the right and completes the switching in the opposite direction. This process is smoother and greatly reduces the occurrence of stagnation. The worktable 21 is reciprocated left and right by the continuous rotation of the right sprocket 43. Two limiting protrusions 443 are set on the push shaft 442 to limit the push shaft 442, so that the push shaft 442 is always in the groove 23 and avoids the situation of disengagement.

[0034] When the worktable 21 moves laterally, the baffle 31 always blocks the top of the machine base 1, thereby reducing the amount of debris entering the machine base 1 during grinding. The rubber buffer pad 26 and the rubber buffer pad 52 can effectively buffer the two when they come into contact, avoiding serious collisions. Furthermore, the two will not come into contact when the worktable 21 is feeding laterally.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate 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 the present invention. 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 any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A transverse feed structure for a bench grinder, comprising a machine base (1), characterized in that: A placement mechanism (2) is provided above the base (1). A shielding mechanism (3) is provided on the left and right sides of the placement mechanism (2). The base (1) is hollow inside. A feeding mechanism (4) is provided in the hollow inside the base (1). The feeding mechanism (4) includes two support plates (41) fixedly connected to the inner wall cavity of the base (1). A motor (42) is fixedly connected to the bottom of the support plate (41) on the right side. A sprocket (43) is provided above the two support plates (41). The bottom of the sprocket (43) on the left side is rotatably connected to the support plate (41) on the left side through a connecting shaft. The sprocket (43) on the right side is fixedly connected to the top output end of the motor (42) through bolts. A chain (44) is meshed and driven on the outer side of the two sprockets (43). A fixing block (441) is fixedly connected to the outer surface of the chain (44). A push shaft (442) is fixedly connected to the top of the fixing block (441).

2. The transverse feed structure for a bench grinder according to claim 1, characterized in that, Two limiting protrusions (443) are fixedly connected to the outer surface of the push shaft (442). The inner wall of the chain (44) is slidably limited by L-shaped stabilizers (45) on both the front and back sides. The bottom of the two L-shaped stabilizers (45) is fixedly connected to the top of the two support plates (41).

3. The transverse feed structure for a bench grinder according to claim 2, characterized in that, The placement mechanism (2) includes a workbench (21), a U-shaped plate (22) is fixedly connected to the bottom of the workbench (21), a groove (23) is provided inside the U-shaped plate (22), the push shaft (442) is slidably limited and fitted inside the groove (23), and the top and bottom of the two limiting protrusions (443) are distributed on the inner side and bottom of the U-shaped plate (22).

4. The transverse feed structure for a bench grinder according to claim 3, characterized in that, The bottom four corners of the workbench (21) are respectively fixedly connected to ball sliders (24) and limit blocks (25). Rubber buffer pads (26) are fixedly connected to the outside of the four limit blocks (25). The top of the machine base (1) is fixedly connected to two slide rails (5). The ball sliders (24) are slidably connected to the slide rails (5) through balls.

5. The transverse feed structure for a bench grinder according to claim 4, characterized in that, Limiting blocks 2 (51) are fixedly connected to the left and right sides of the slide rail (5). The bottom of the limiting block 2 (51) is fixedly connected to the top of the base (1). A rubber buffer pad 2 (52) is fixedly connected to the outside of the limiting block 2 (51).

6. The transverse feed structure for a bench grinder according to claim 4, characterized in that, The shielding mechanism (3) includes a shielding plate (31) and a fixed seat (32). The top of the fixed seat (32) is fixedly connected to the bottom of the workbench (21), and a positioning groove (33) is provided inside the fixed seat (32).

7. The transverse feed structure for a bench grinder according to claim 6, characterized in that, The side of the baffle plate (31) near the fixed base (32) is fixedly connected to a positioning insert (311), the positioning insert (311) is positioned and engaged with the positioning groove (33), the side of the baffle plate (31) near the fixed base (32) has several insertion holes (312), and the side of the fixed base (32) near the baffle plate (31) has several threaded holes corresponding to the insertion holes (312).

8. The transverse feed structure for a bench grinder according to claim 7, characterized in that, The shield (31) is inclined, and the side of the shield (31) closer to the workbench (21) is higher than the side farther away from the workbench (21).

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