Grinding mechanism capable of adjusting grinding force

Abstract

The utility model relates to a grinding mechanism capable of adjusting grinding force, which comprises a machine base, a door frame is arranged on the machine base, a hand-cranking lead screw module which is vertically arranged is transversely connected to a cross beam of the door frame in a sliding mode, a pipe barrel is installed at the front end of a sliding table of the hand-cranking lead screw module, a spring is arranged in the pipe barrel, and the spring is connected with the hand-cranking lead screw module in a sliding mode. An adjusting mechanism used for pushing the spring downwards is arranged at the upper end of the pipe barrel, and a barrel cover connected with the lower end of the spring and used for installing a polishing workpiece is arranged on the lower side of the pipe barrel. The grinding mechanism is convenient to adjust the grinding force and reduces the labor intensity of workers.

Description

Technical Field

[0001] The utility model relates to a grinding mechanism with adjustable grinding force. Background Art

[0002] Currently, most small metal parts are polished by manually clamping the metal castings and directly contacting them with high-speed rotating polishing discs and other grinding equipment. The casting polishing process in foundries generates a large amount of sparks and dust. The metal dust and the physical exertion of manual labor are extremely harmful to the physical and mental health of employees. In addition, manual polishing is time-consuming.

[0003] Furthermore, manual grinding requires workers to maintain a single posture for extended periods, which can be detrimental to their health. Furthermore, the high labor intensity and harsh working environment keep labor costs high, making it difficult to recruit long-term workers. This makes manual grinding unable to meet the requirements of large-scale, high-efficiency, high-quality, environmentally friendly, and continuous grinding.

[0004] To improve grinding efficiency and protect user health and safety, foundries also use mechanical equipment for grinding. However, while some mechanical devices solve the problem of simple, repetitive labor, they don't improve grinding quality. For example, the grinding devices proposed in patents such as "A Boss Grinding Tool" offer simple operation and high grinding efficiency, but they lack sufficient grinding force.

[0005] Since controlling the grinding force is the key in the mechanical grinding process, and most existing mechanical grinding devices are difficult to control the grinding force, the polished surface will be uneven, and the loading process and finished products still need manual inspection, and the overall grinding cost has not been reduced.

[0006] For this purpose, a grinding mechanism with adjustable grinding force is required. Utility Model Content

[0007] The purpose of the utility model is to provide a grinding mechanism with adjustable grinding force, which is convenient for adjusting the grinding force and reduces the labor intensity of workers.

[0008] The technical solution of the present utility model is: a grinding mechanism with adjustable grinding force, comprising a machine base, a door frame is arranged on the machine base, a hand-crank screw module arranged vertically is connected to the crossbeam of the door frame for horizontal sliding, a tube is installed at the front end of the slide of the hand-crank screw module, a spring is arranged in the tube, an adjustment mechanism for pushing the spring downward is provided at the upper end of the tube, and a tube cover connected to the lower end of the spring and used for mounting the grinding workpiece is provided on the lower side of the tube.

[0009] Furthermore, the machine base is provided with a support column, and a grinding workbench for supporting the sanding belt is laterally provided at the upper end of the support column.

[0010] Furthermore, the gantry includes columns fixed on both sides of the rear portion of the machine base, and a crossbeam is installed between the upper ends of the two columns.

[0011] Furthermore, the hand-cranked screw module includes a slide connected to the crossbeam in a transverse sliding manner, the slide is vertically slidably connected to the slide, and the slide is vertically rotatably connected to a screw that passes through the slide and is screwed to the slide, and a handwheel is fixed to the upper end of the screw.

[0012] Furthermore, the upper and lower ends of the slide are fixed with forward-protruding fixed plates, and a pair of guide rods that movably cooperate with the slide are vertically fixed between the two fixed plates. The upper and lower parts of the screw rod are respectively rotatably connected to the corresponding fixed plates.

[0013] Furthermore, a clamping block is installed on the upper side of the fixing plate located on the upper side and is sleeved on the outer side of the upper end of the screw rod. A transverse groove is opened on one side of the clamping block and an adjustable handle is longitudinally screwed.

[0014] Furthermore, the adjustment mechanism includes a tube cover installed on the upper end of the tube, a butterfly screw is vertically threaded on the tube cover, and a circular pad is provided in the tube, which abuts against the upper end of the spring and the lower end of the butterfly screw.

[0015] Furthermore, the tube is fixedly connected to the slide fixing piece and the tube fixing piece on the outside of the tube via a clamp.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The grinding mechanism is convenient for adjusting the grinding force and is easy to use, which is beneficial to making the workpiece surface uniform and improving the surface accuracy of the workpiece surface.

[0018] 2. The grinding mechanism helps to reduce the labor intensity of workers, reduce the input of labor costs, and improve production and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is an enlarged view of the hand-cranked screw module of the utility model;

[0021] In the figure: 1-polishing workpiece 10-machine base 11-support column 12-polishing workbench 20-gantry 21-column 22-crossbeam 30-hand screw module 31-slide 32-slide 33-screw 34-handwheel 35-fixing plate 36-guide rod 37-clamping block 38-adjustable handle 40-tube 41-spring 42-tube cover 43-tube cover 44-butterfly screw 45-circular pad 46-slide fixing part 47-tube fixing part. DETAILED DESCRIPTION

[0022] To make the above features and advantages of the present invention more clearly understood, embodiments are given below with reference to the accompanying drawings for detailed description, but the present invention is not limited thereto.

[0023] refer to Figure 1 and Figure 2

[0024] A grinding mechanism with adjustable grinding force includes a machine base 10, a gantry 20 is provided on the machine base, a hand screw module 30 is vertically provided and is laterally slidably connected to the crossbeam of the gantry, a tube 40 is installed at the front end of the slide of the hand screw module, a spring 41 is provided in the tube, and an adjustment mechanism for pushing the spring downward is provided at the upper end of the tube, thereby adjusting the downward grinding force; a tube cover 42 connected to the lower end of the spring and used for mounting the grinding workpiece 1 is provided on the lower side of the tube.

[0025] In this embodiment, the machine base is provided with a support column 11, the upper end of which is transversely mounted with a sanding table 12 for supporting the abrasive belt. A sanding mechanism (not shown) is mounted on the machine base, with the sanding belt's working section positioned above the sanding table. This mechanism supports the working section of the sanding belt via the sanding table and withstands the downward pressure of the adjustment mechanism.

[0026] In this embodiment, the gantry includes columns 21 fixed on both sides of the rear portion of the machine base, and a crossbeam 22 is installed between the upper ends of the two columns.

[0027] In this embodiment, the hand-cranked screw module includes a slide 31 that is laterally slidably connected to the crossbeam, and the slide 32 is vertically slidably connected to the slide. The slide is vertically rotatably connected with a screw 33 that passes through the slide and is screwed to the slide. A handwheel 34 is fixed to the upper end of the screw. By rotating the handwheel, the screw drives the slide to rise and fall, thereby adjusting the height of the tube.

[0028] In this embodiment, in order to better realize the lifting and lowering of the slide, the upper and lower ends of the slide are fixed with forward-protruding fixed plates 35, and a pair of guide rods 36 that are movably matched with the slide are vertically fixed between the two fixed plates. The guide rods located on the left and right sides of the slide play the role of stabilizing the slider; the upper and lower parts of the screw rod are respectively rotatably connected to the corresponding fixed plates.

[0029] In this embodiment, in order to lock the screw after the slide is adjusted to a good position, a clamping block 37 is installed on the upper side of the fixed plate on the upper side and is placed on the outer side of the upper end of the screw. A transverse groove connected to the screw is opened on one side of the clamping block, and an adjustable handle 38 is longitudinally screwed on the transverse groove side of the clamping block. By rotating the adjustable handle, the clamping block can lock the screw to prevent the slide from loosening.

[0030] In this embodiment, the adjustment mechanism includes a tube cover 43 mounted on the upper end of the tube, with a butterfly screw 44 vertically threaded onto the tube cover. A circular pad 45 is disposed within the tube, abutting the upper end of the spring and the lower end of the butterfly screw. As the butterfly screw rotates, the circular pad compresses the spring, maintaining a certain spring force within its deformation range. This spring force is then transmitted to the workpiece being ground, maintaining a certain grinding force between the workpiece and the abrasive belt.

[0031] In this embodiment, a slide fixing part 46 is fixed to the front end surface of the slide, and a tube fixing part 47 is installed on the slide fixing part via bolts. The slide fixing part and the tube fixing part are clamped on the outside of the tube, thereby realizing the connection and fixation between the tube and the slide.

[0032] In this embodiment, the upper portion of the barrel cover has a guide portion that extends into the barrel, and the guide portion is provided with an anti-slip structure, such as an anti-slip flange on the upper portion of the guide portion and a limit flange in the inner cavity of the lower end of the barrel, or the guide portion is actually provided with an anti-slip guide groove that cooperates with the barrel. The barrel cover can be buckled onto the upper portion of the grinding workpiece, or a hand-tightening chuck or hand-tightening claw is provided in the barrel cover, thereby engaging the grinding workpiece with the barrel under the action of the barrel cover.

[0033] In another embodiment, the circular backing plate of the adjustment mechanism is rotatably connected to the lower end of the butterfly screw, which is fixedly connected to the upper end of the spring. The tube cover is shell-shaped and fixed to the lower end of the tube, and the tube cover can be placed on the upper portion of the grinding workpiece. By rotating the butterfly screw downward, the spring passes through the tube cover and directly abuts the grinding workpiece.

[0034] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously not possible to use an integrated molding process).

[0035] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the above-mentioned utility model to express positional relationships or shapes include states or shapes that are approximate, similar or close thereto.

[0036] Any component provided by the present invention may be assembled from a plurality of separate components, or may be a separate component manufactured by an integral forming process.

[0037] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A grinding mechanism with adjustable grinding force, comprising a machine base, characterized in that: A gantry is provided on the machine base, and a vertically arranged hand-crank screw module is horizontally slidably connected to the crossbeam of the gantry. A tube is installed at the front end of the slide of the hand-crank screw module, and a spring is provided in the tube. An adjusting mechanism for pushing the spring downward is provided at the upper end of the tube, and a tube cover connected to the lower end of the spring and used for installing the grinding workpiece is provided on the lower side of the tube.

2. The grinding mechanism with adjustable grinding force according to claim 1, characterized in that: The machine base is provided with a support column, and a grinding workbench for supporting the sanding belt is laterally provided at the upper end of the support column.

3. The grinding mechanism with adjustable grinding force according to claim 1 or 2, characterized in that: The door frame includes columns fixed on both sides of the rear part of the machine base, and a crossbeam is installed between the upper ends of the two columns.

4. The grinding mechanism with adjustable grinding force according to claim 1, characterized in that: The hand-cranked screw module includes a slide connected to the crossbeam in a transverse sliding manner, the slide is vertically slidably connected to the slide, a screw passing through the slide and screwed to the slide is vertically rotatably connected to the slide, and a handwheel is fixed to the upper end of the screw.

5. The grinding mechanism with adjustable grinding force according to claim 4, characterized in that: The upper and lower ends of the slide are fixed with forward-protruding fixed plates, and a pair of guide rods that movably cooperate with the slide are vertically fixed between the two fixed plates. The upper and lower parts of the screw rod are respectively rotatably connected to the corresponding fixed plates.

6. The grinding mechanism with adjustable grinding force according to claim 5, characterized in that: A clamping block is installed on the upper side of the fixing plate located on the upper side and is sleeved on the outer side of the upper end of the screw rod. A transverse groove is opened on one side of the clamping block and an adjustable handle is longitudinally screwed.

7. The grinding mechanism with adjustable grinding force according to claim 1, 2, 4, 5 or 6, characterized in that: The adjustment mechanism includes a tube cover installed on the upper end of the tube, a butterfly screw is vertically screwed on the tube cover, and a circular pad is provided in the tube to abut against the upper end of the spring and the lower end of the butterfly screw.

8. The grinding mechanism with adjustable grinding force according to claim 1, 2, 4, 5 or 6, characterized in that: The tube is fixedly connected to the slideway fixing piece and the tube fixing piece on the outside of the tube via a clamp.

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