A bench grinder that is easy to maintain

Abstract

The utility model belongs to the field of industrial processing, specifically speaking is an easy maintenance bench grinder, including work table, the top of work table swing joint has the connecting plate, the top fixed mounting of connecting plate has the grinder main part, the inside of connecting plate is provided with positioning mechanism, positioning mechanism and work table cooperation uses, through setting positioning mechanism, through pressing down the rotary table to remove the positioning of rotary table, subsequently rotates the rotary table, makes the rotary table drive the runner rotation through the fixed block, and then makes the runner drive two insertion rods to slide in the inner chamber of positioning groove, thereby through the runner can drive two insertion rods to be inserted reliably in the inside fixed of work table, and vice versa can remove the locking quickly, not only has saved the traditional bolt fixed mode tedious tightening and loosening step, also avoided the risk of bolt loss, the staff removes the bench grinder conveniently, thereby to the efficiency of daily maintenance such as the body cleaning, internal overhaul has brought the promotion.

Description

Technical Field

[0001] This utility model relates to the field of industrial processing, specifically an easy-to-maintain benchtop grinder. Background Technology

[0002] A bench grinder is a basic power tool that is fixedly mounted on a workbench. It uses a motor to drive two grinding wheels mounted on the ends of the shaft to rotate at high speed. The abrasive on the surface of the grinding wheels is used to grind, dress, polish or cut materials such as metal and wood. It has long been an indispensable piece of equipment in the fields of machining, metal repair and tool manufacturing.

[0003] Currently, most benchtop grinders in existing technology are fixed to the workbench with bolts. When maintenance work such as checking the internal motor or replacing carbon brushes is required, multiple fastening bolts must be loosened with tools to remove the entire machine from the workbench. This process is not only cumbersome and time-consuming, but also prone to bolt stripping or decreased installation accuracy due to repeated disassembly and assembly, seriously affecting the efficiency and convenience of daily maintenance. Therefore, a benchtop grinder that is easy to maintain is proposed to address the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, such as the need to loosen multiple bolts with tools to remove the entire machine from the workbench during maintenance operations like inspecting the internal motor or replacing carbon brushes, this invention proposes an easy-to-maintain benchtop grinder.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an easy-to-maintain benchtop grinder, including a workbench, a connecting plate movably connected to the top of the workbench, a grinder body fixedly installed on the top of the connecting plate, and a positioning mechanism provided inside the connecting plate, which is used in conjunction with the workbench;

[0006] The positioning mechanism includes two mounting rods fixedly connected to both sides inside the connecting plate. A rotating wheel is rotatably mounted on the surface of each mounting rod, and a connecting rod is rotatably connected to both ends of each rotating wheel. Two insert rods are slidably connected inside the connecting plate. One end of each connecting rod is rotatably connected to one end of each insert rod, and the other end of each insert rod passes through the connecting plate and is slidably connected to the inner cavity of the connecting plate. Two positioning slots are formed inside the worktable, and the other ends of each insert rod are movably connected to the inner cavities of the two positioning slots. A limit assembly is provided on the top of the connecting plate, and the limit assembly works in conjunction with the rotating wheel.

[0007] Preferably, a limiting block is fixedly connected to the surface of the mounting rod, and a limiting groove is formed inside the rotating wheel, with the inner cavity of the limiting groove slidingly connected to the surface of the limiting block.

[0008] Preferably, the surface of the insertion rod is provided with a sliding groove, and a slider is fixedly connected inside the connecting plate, with the surface of the slider slidably connected to the inner cavity of the sliding groove.

[0009] Preferably, the limiting assembly includes two sleeves fixedly connected to the top of the connecting plate, a turntable slidably connected inside the sleeves, a plurality of first teeth fixedly connected inside the sleeves, a plurality of second teeth fixedly connected to the top of the turntable, the plurality of first teeth and the plurality of second teeth cooperating with each other, a fixing block fixedly connected to the top of the rotating wheel, two slots opened on the top of the fixing block, and two fixing rods fixedly connected to the bottom of the turntable, the surface of the fixing rods slidably connected to the inner cavity of the slots.

[0010] Preferably, a spring is provided on the top of the fixing block, one end of the spring is fixedly connected to the bottom of the turntable, and the other end of the spring is fixedly connected to the top of the fixing block.

[0011] Preferably, a sleeve rod is fixedly connected to the top of the fixed block, and an inner rod is slidably connected inside the sleeve rod. One end of the inner rod passes through the sleeve rod and is slidably connected to the inner cavity of the sleeve rod. One end of the inner rod is fixedly connected to the bottom of the turntable.

[0012] Preferably, a stop block is fixedly connected inside the sleeve rod, and a protrusion is fixedly connected to the other end of the inner rod, with the stop block and the protrusion working together.

[0013] The advantages of this utility model are:

[0014] This invention features a positioning mechanism. By pressing down on the turntable to release its positioning, and then rotating the turntable, the turntable drives the rotating wheel via the fixed block. This rotating wheel then causes the two insert rods to slide within the positioning groove. Thus, rotating the rotating wheel reliably inserts the two insert rods into the worktable for secure fixing. Conversely, turning the wheel quickly releases the lock. This not only eliminates the tedious tightening and loosening steps of traditional bolt fixing methods but also avoids the risk of lost bolts or stripped threads. It also makes it easier for workers to remove the grinding machine, thereby improving the efficiency of daily maintenance such as machine cleaning and internal inspection. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0016] Figure 1This is a schematic diagram of the easy-to-maintain benchtop grinder of this utility model;

[0017] Figure 2 This is a schematic diagram of the positioning mechanism of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 4 This is a schematic diagram of the limiting component structure of this utility model;

[0020] Figure 5 This utility model Figure 4 A magnified structural diagram of part A.

[0021] In the diagram: 1. Workbench; 101. Connecting plate; 102. Grinding wheel body; 2. Positioning mechanism; 201. Mounting rod; 202. Rotary wheel; 203. Connecting rod; 204. Insert rod; 205. Positioning groove; 206. Limiting block; 207. Limiting groove; 208. Slide groove; 209. Slider; 3. Limiting assembly; 301. Sleeve; 302. Turntable; 303. First tooth; 304. Second tooth; 305. Fixing block; 306. Groove; 307. Fixing rod; 308. Spring; 309. Sleeve rod; 310. Inner rod; 311. Stop block; 312. Protrusion. Detailed Implementation

[0022] 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.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses an easy-to-maintain benchtop grinder. (Refer to...) Figure 1 and Figure 2 An easy-to-maintain benchtop grinder includes a workbench 1, a connecting plate 101 movably connected to the top of the workbench 1, a grinder body 102 fixedly installed on the top of the connecting plate 101, and a positioning mechanism 2 provided inside the connecting plate 101, which works in conjunction with the workbench 1.

[0025] The positioning mechanism 2 includes two mounting rods 201 fixedly connected to both sides inside the connecting plate 101. A rotating wheel 202 is rotatably sleeved on the surface of each mounting rod 201. A connecting rod 203 is rotatably connected to both ends of the rotating wheel 202. Two insert rods 204 are slidably connected inside the connecting plate 101. One end of each connecting rod 203 is rotatably connected to one end of each insert rod 204. The other end of each insert rod 204 passes through the connecting plate 101 and is slidably connected to the inner cavity of the connecting plate 101. Two positioning grooves 205 are opened inside the worktable 1. The other ends of each insert rod 204 are movably connected to the inner cavity of each positioning groove 205. A limit component 3 is provided on the top of the connecting plate 101. The limit component 3 is used in conjunction with the rotating wheel 202.

[0026] When maintenance is required on the grinding machine body 102, the limiting component 3 is released from restricting the rotating wheel 202. Then, the rotating wheel 202 is rotated, which drives the connecting rod 203 to move and makes one end of the connecting rod 203 rotate with the rotating wheel 202. This allows the other end of the connecting rod 203 to pull the insert rod 204 back from the inner cavity of the positioning groove 205 to the inner cavity of the connecting plate 101, thereby releasing the positioning of the grinding machine body 102. Then, the grinding machine body 102 can be directly removed from the top of the worktable 1. This method eliminates the tedious tightening and loosening steps of the traditional bolt fixing method, making it convenient for users to remove the grinding machine body 102 for maintenance.

[0027] Reference Figure 3 and Figure 4 A limiting block 206 is fixedly connected to the surface of the mounting rod 201, and a limiting groove 207 is formed inside the rotating wheel 202. The inner cavity of the limiting groove 207 is slidably connected to the surface of the limiting block 206. When the rotating wheel 202 is rotated, the position of the rotating wheel 202 is ensured by the stability of the limiting groove 207 and the limiting block 206, and the rotating wheel 202 is prevented from detaching from the mounting rod 201.

[0028] Reference Figure 3 and Figure 4 The surface of the insertion rod 204 is provided with a sliding groove 208, and a slider 209 is fixedly connected inside the connecting plate 101. The surface of the slider 209 is slidably connected to the inner cavity of the sliding groove 208. When the connecting rod 203 drives the insertion rod 204 to move, the stability of the sliding groove 208 and the slider 209 reduces the friction of the connecting plate 101 on the insertion rod 204, increases the smoothness of the insertion rod 204 sliding in the connecting plate 101, and avoids the insertion rod 204 having difficulty sliding in the inner cavity of the connecting plate 101.

[0029] Reference Figure 4 and Figure 5The limiting component 3 includes two sleeves 301 fixedly connected to the top of the connecting plate 101. A turntable 302 is slidably connected inside the sleeves 301. Several first teeth 303 are fixedly connected inside the sleeves 301. Several second teeth 304 are fixedly connected to the top of the turntable 302. The several first teeth 303 and several second teeth 304 cooperate with each other. A fixing block 305 is fixedly connected to the top of the rotating wheel 202. Two slots 306 are opened on the top of the fixing block 305. Two fixing rods 307 are fixedly connected to the bottom of the turntable 302. The surface of the fixing rods 307 is slidably connected to the inner cavity of the slots 306.

[0030] When it is necessary to rotate the grinding wheel 202, press the turntable 302 to cause the second tooth 304 to separate from the first tooth 303. Then, by pressing the turntable 302, insert the fixing rod 307 into the slot 306 of the fixing block 305. Then rotate the turntable 302. Through the stability of the fixing rod 307 and the slot 306, the turntable 302 drives the grinding wheel 202 to rotate through the fixing block 305. This causes the grinding wheel 202 to drive the insertion rod 204 to move through the connecting rod 203, thereby pulling the insertion rod 204 out of the inner cavity of the positioning slot 205 to release the positioning of the grinding wheel body 102.

[0031] Reference Figure 4 and Figure 5 A spring 308 is provided on the top of the fixing block 305. One end of the spring 308 is fixedly connected to the bottom of the turntable 302, and the other end of the spring 308 is fixedly connected to the top of the fixing block 305. After the insertion rod 204 is pulled out from the inner cavity of the positioning groove 205, the pressure on the turntable 302 is released. At this time, the spring 308 pushes the turntable 302 upward, so that the turntable 302 drives the second tooth 304 to re-mesh with the first tooth 303, so as to position the turntable 302 and prevent the turntable 302 from being mis-rotated due to movement or vibration, thereby ensuring the stability of the wheel 202 and preventing the wheel 202 from causing the insertion rod 204 to slide randomly.

[0032] Reference Figure 4 and Figure 5 A sleeve rod 309 is fixedly connected to the top of the fixed block 305. An inner rod 310 is slidably connected inside the sleeve rod 309. One end of the inner rod 310 passes through the sleeve rod 309 and is slidably connected to the inner cavity of the sleeve rod 309. One end of the inner rod 310 is fixedly connected to the bottom of the turntable 302. When the turntable 302 is pressed, the stability of the sleeve rod 309 and the inner rod 310 provides support for the spring 308, preventing the spring 308 from twisting.

[0033] Reference Figure 4 and Figure 5The sleeve rod 309 is fixedly connected to a stop block 311, and the other end of the inner rod 310 is fixedly connected to a protrusion 312. The stop block 311 and the protrusion 312 work together. When the spring 308 pushes the turntable 302 to rise, the turntable 302 drives the inner rod 310 to rise. The stability of the stop block 311 and the protrusion 312 ensures the position of the inner rod 310 and prevents the inner rod 310 from separating from the inner cavity of the sleeve rod 309.

[0034] Working principle: When maintenance is required on the grinding wheel body 102, press the turntable 302 to separate the second tooth 304 from the first tooth 303. Pressing the turntable 302 inserts the fixing rod 307 into the inner cavity of the slot 306. Then, rotate the turntable 302. Through the stabilization of the fixing rod 307 and the slot 306, the turntable 302 drives the rotating wheel 202 to rotate via the fixing block 305. The rotating wheel 202 drives one end of the connecting rod 203 to move and follow the rotation of the rotating wheel 202. The other end of the connecting rod 203 then pulls the insertion rod 204 back from the inner cavity of the positioning slot 205. The positioning of the grinding machine body 102 is released so that the grinding machine body 102 can be directly removed from the worktable 1 for maintenance and repair. After the insertion rod 204 is pulled out from the inner cavity of the positioning groove 205, the pressing on the turntable 302 is released. Then the spring 308 pushes the turntable 302 to rise, so that the turntable 302 drives the second tooth 304 to re-mesh with the first tooth 303, thereby positioning the turntable 302 and the grinding wheel 202, preventing the turntable 302 from being mis-rotated due to movement and vibration, thus ensuring the stability of the insertion rod 204 and preventing the insertion rod 204 from sliding randomly.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A benchtop grinder that is easy to maintain, characterized in that: Includes a workbench (1), the top of which is movably connected to a connecting plate (101), the top of which is fixedly mounted with a grinding wheel body (102), and the inside of the connecting plate (101) is provided with a positioning mechanism (2), which is used in conjunction with the workbench (1). The positioning mechanism (2) includes two mounting rods (201) fixedly connected to both sides inside the connecting plate (101). The surfaces of the two mounting rods (201) are rotatably fitted with rotating wheels (202). Both ends of the rotating wheels (202) are rotatably connected with connecting rods (203). The interior of the connecting plate (101) is slidably connected with two insert rods (204). One end of the two connecting rods (203) is rotatably connected to one end of the two insert rods (204). The other end of the insert rods (204) passes through the connecting plate (101) and is slidably connected to the inner cavity of the connecting plate (101). The interior of the worktable (1) has two positioning grooves (205). The other ends of the two insert rods (204) are movably connected to the inner cavities of the two positioning grooves (205). The top of the connecting plate (101) is provided with a limiting component (3). The limiting component (3) is used in conjunction with the rotating wheels (202).

2. The easy-to-maintain benchtop grinder according to claim 1, characterized in that: The mounting rod (201) is fixedly connected to a limiting block (206), and the inside of the rotating wheel (202) is provided with a limiting groove (207). The inner cavity of the limiting groove (207) is slidably connected to the surface of the limiting block (206).

3. The easy-to-maintain benchtop grinder according to claim 1, characterized in that: The surface of the insertion rod (204) is provided with a sliding groove (208), and a slider (209) is fixedly connected inside the connecting plate (101). The surface of the slider (209) is slidably connected to the inner cavity of the sliding groove (208).

4. The easy-to-maintain benchtop grinder according to claim 1, characterized in that: The limiting component (3) includes two sleeves (301) fixedly connected to the top of the connecting plate (101). A turntable (302) is slidably connected inside the sleeves (301). A plurality of first teeth (303) are fixedly connected inside the sleeves (301). A plurality of second teeth (304) are fixedly connected to the top of the turntable (302). The plurality of first teeth (303) and the plurality of second teeth (304) cooperate with each other. A fixing block (305) is fixedly connected to the top of the rotating wheel (202). Two slots (306) are opened on the top of the fixing block (305). Two fixing rods (307) are fixedly connected to the bottom of the turntable (302). The surface of the fixing rods (307) is slidably connected to the inner cavity of the slots (306).

5. The easy-to-maintain benchtop grinder according to claim 4, characterized in that: A spring (308) is provided on the top of the fixing block (305). One end of the spring (308) is fixedly connected to the bottom of the turntable (302), and the other end of the spring (308) is fixedly connected to the top of the fixing block (305).

6. The easy-to-maintain benchtop grinder according to claim 4, characterized in that: The top of the fixed block (305) is fixedly connected to a sleeve rod (309), and an inner rod (310) is slidably connected inside the sleeve rod (309). One end of the inner rod (310) passes through the sleeve rod (309) and is slidably connected to the inner cavity of the sleeve rod (309). One end of the inner rod (310) is fixedly connected to the bottom of the turntable (302).

7. The easy-to-maintain benchtop grinder according to claim 6, characterized in that: The sleeve rod (309) is fixedly connected to a stop block (311), and the other end of the inner rod (310) is fixedly connected to a protrusion (312). The stop block (311) and the protrusion (312) are used in conjunction.

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