Grinding mechanism with balancing device

Abstract

The utility model relates to a grinding mechanism with a balancing device, which comprises a machine base, a door frame is installed on the machine base, a sliding block capable of sliding up and down is installed on a cross beam of the door frame, a pipe barrel is arranged on the front side of the sliding block, the pipe barrel is located on the upper side of an abrasive belt mechanism, and the lower end of the pipe barrel is used for detachably installing a grinding workpiece. A balancing weight is installed at the upper end of the pipe barrel, one end of a steel wire rope is connected with the sliding block, and the other end of the steel wire rope bypasses a pulley assembly arranged on the portal and is used for being connected with a balancing weight. The grinding mechanism is favorable for adjusting and balancing the grinding force required during grinding.

Description

TECHNICAL FIELD

[0001] The utility model relates to a grinding mechanism with a balancing device. BACKGROUND

[0002] Casting is a very mature metal plastic process, and large-sized workpieces and complex-shaped mechanical parts generally adopt casting to obtain product blanks, and then are processed. At present, the methods for polishing the defects such as residual marks and flash of castings are mainly artificial method, thermal energy method, laser method and the like.

[0003] The industrial field has begun to use a large number of automatic equipment to replace manual work for dangerous and complex process machining work, and the cases of using industrial mechanical devices to polish workpieces in the field of casting processing are also gradually increasing.

[0004] However, according to the actual process of casting processing in the current foundry, the steps of processing the residual marks and other defects of the castings are mainly completed by manual work, especially the polishing of small metals, and the workers hold pneumatic polishers to polish the defects of the workpieces. This manual polishing method has the following problems: first, the processing efficiency is low, and the polishing quality is very unstable, and the same batch of workpieces cannot guarantee the same surface quality; second, the labor intensity of the workers is large, and long-term engagement in hand vibration operation will cause diseases in the hands and ears. Therefore, it is of practical significance to study the defect polishing technology of castings by industrial mechanical devices to replace manual work for various castings post-processing.

[0005] Since most of the existing mechanical polishing devices are difficult to control the polishing force, the surface is not completely uniform, the loading process and the finished product still need manual detection, and the entire polishing cost has not been reduced. For example, the patent "metal casting polishing and polishing equipment" proposes to drive the polishing rod to rotate by a driving motor, which facilitates the replacement of the polishing layer on the surface of the polishing rod at any time, although the maintenance cost is reduced, but the polishing force setting is slightly insufficient, and the entire polishing cost has not been reduced.

[0006] Therefore, a grinding mechanism with a balancing device is needed to improve the above problems. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at providing a grinding mechanism with a balancing device, which helps to adjust the polishing force required during balanced polishing.

[0008] The technical scheme of the utility model discloses a grinding mechanism with a balancing device, which comprises a base, a portal is installed on the base, a sliding block that can slide up and down is installed on the crossbeam of the portal, a pipe cylinder for detachably installing a workpiece to be polished is arranged on the front side of the sliding block and is located on the upper side of a sand belt mechanism and has a lower end, a counterweight is installed on the upper end of the pipe cylinder, one end of a steel wire rope is connected with the sliding block, and the other end of the steel wire rope is wound around a pulley assembly arranged on the portal and is used for being connected with the counterweight.

[0009] Further, a connecting plate is fixed on the front side of the crossbeam of the portal, guide rods that slide with the sliding block are vertically fixed on the two sides of the connecting plate, and a limiting plate is fixed on the lower ends of the two guide rods.

[0010] Further, the pulley assembly comprises a first pulley installed on the upper end of the connecting plate, a second pulley is installed on the upper end of a stand column on one side of the portal, one end of the steel wire rope is connected with the sliding block, and the other end of the steel wire rope is sequentially wound around the first pulley and the second pulley.

[0011] Further, the other end of the steel wire rope is connected with a counterweight connecting piece.

[0012] Further, an arc-shaped recess for the pipe cylinder is arranged on the front end of the sliding block, and a pipe cylinder fixing piece connected with the sliding block through bolts is arranged on the pipe cylinder.

[0013] Further, the sand belt mechanism comprises a horizontal installation plate vertically arranged on the base, four roller shafts are rotationally connected to the front side of the horizontal installation plate, one of the roller shafts is driven to rotate by a driving mechanism, a sand belt is arranged between the four roller shafts, and a support plate is horizontally fixed on the upper part of the horizontal installation plate and is located on the lower side of the working section of the sand belt.

[0014] Further, the driving mechanism comprises a driven pulley installed on the rear end of one of the roller shafts, a speed reducer motor is installed on the base, a driving pulley is installed on the output shaft of the speed reducer motor, and a transmission belt is arranged between the driving pulley and the driven pulley.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The grinding mechanism is compact in structure, the polishing downward pressure required for polishing can be balanced by increasing or reducing the counterweight at the other end of the steel wire rope, and the operation and use are simple. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view (hidden sand belt mechanism) of the utility model;

[0018] Fig. 2 It is a front view of the utility model;

[0019] Fig. 3 is a sectional view of the utility model;

[0020] In the figure: 1 - polishing workpiece 10 - base 20 - portal 21 - column 22 - crossbeam 23 - connecting plate 24 - guide rod 25 - limit plate 30 - sliding block 31 - sliding block connecting piece 32 - bolt 33 - pipe cylinder fixing piece 40 - abrasive belt mechanism 41 - transverse mounting plate 42 - roller shaft 43 - abrasive belt 44 - support plate 45 - driven pulley 46 - speed reducer motor 47 - driving pulley 48 - transmission belt 50 - pipe cylinder 51 - counterweight 60 - steel wire rope 61 - first pulley 62 - second pulley 63 - counterweight connecting piece. DETAILED DESCRIPTION

[0021] In order to make the above features and advantages of the utility model more obvious, the following examples are taken, and the detailed description is made as follows by combining with the drawings, but the utility model is not limited to this.

[0022] Reference Figs. 1 to 3

[0023] A kind of grinding mechanism with balancing device, including base 10, the base is installed with portal 20, the portal is composed of column 21 located at both sides and crossbeam 22 between the upper end of two columns. Crossbeam of the portal is installed with the sliding block 30 that can slide up and down, the front side of the sliding block is provided with the pipe cylinder 50 for the detachable installation polishing workpiece 1 in the upper side of abrasive belt mechanism 40 and the lower end, the upper end of the pipe cylinder is installed with the replaceable counterweight 51, downward pressure is formed by the gravity of counterweight 4, and then polishing down pressure with the size of counterweight 4 gravity. In order to adjust polishing down pressure, one end of steel wire rope 60 is connected with sliding block, the other end of steel wire rope is wound around pulley assembly arranged on portal and is used to be connected with counterweight.

[0024] In the embodiment, the front side of the crossbeam of the portal is fixed with connecting plate 23, the two sides of the connecting plate are respectively vertically fixed with guide rod 24 that is slidably matched with sliding block, limit plate 25 is fixed in the lower end of the two guide rods, and the sliding block is stably lifted by the two guide rods. The connecting plate and limit plate are respectively L-shaped and are connected and fixed with the crossbeam, which helps to ensure the stability of the connection and better bear gravity.

[0025] In the embodiment, in order to better install counterweight and change polishing down pressure, the pulley assembly includes first pulley 61 installed on the upper end of connecting plate, second pulley 62 is installed on the upper end of column at one side of portal, one end of steel wire rope is connected with sliding block, and the other end of steel wire rope is wound around first pulley and second pulley in sequence.

[0026] In the embodiment, the other end of the steel wire rope is connected with a counterweight connecting piece 63, such as a hook, so as to install and hang the counterweight.

[0027] In the embodiment, in order to realize the connection and fixation of the pipe cylinder and the sliding block, the front end of the sliding block is fixed with a sliding block connecting piece 31, the sliding block connecting piece is provided with an arc-shaped recess for the insertion of the arc surface of the pipe cylinder, and the pipe cylinder is buckled with a pipe cylinder fixing piece 33 connected with the sliding block connecting piece through a bolt 32, so that the pipe cylinder can stably follow the sliding block to rise and fall.

[0028] In the embodiment, the sand belt mechanism comprises a transversely installed plate 41 vertically arranged on the machine base, four longitudinally arranged roller shafts 42 are rotationally connected to the front side of the transversely installed plate, one of the roller shafts is driven to rotate by a driving mechanism, a sand belt 43 is arranged between the four roller shafts, and a support plate 44 is transversely fixed to the upper part of the transversely installed plate and located at the lower side of the sand belt working section, so as to support the sand belt and ensure that the sand belt working section is in a flat state, thereby better bearing the polishing downward pressure and completing the grinding.

[0029] In the embodiment, the driving mechanism comprises a driven pulley 45 installed at the rear end of one of the roller shafts, a speed reducer motor 46 is installed on the machine base, a driving pulley 47 is installed on the output shaft of the speed reducer motor, and a transmission belt 48 is arranged between the driving pulley and the driven pulley, so as to drive the sand belt to rotate.

[0030] In the embodiment, the lower end of the pipe cylinder can be provided with an existing clamping mechanism such as a hand chuck to realize the dismounting and mounting of the polished workpiece.

[0031] In use, in the initial polishing stage, the required polishing force is calculated, and the counterweight is responsible for the downward polishing downward pressure, when the polishing downward pressure needs to be changed, the other end of the steel wire rope is provided with a weight, and the steel wire is connected with the sliding block through the first pulley, so that the polishing downward pressure required for polishing is balanced by increasing or reducing the counterweight at the other end of the steel wire rope.

[0032] If the utility model discloses or involves mutually fixed connecting parts or structural members, then, except for another declaration, fixed connection can be understood as: detachable fixed connection (for example, using bolt or screw connection), and also can be understood as: non-detachable fixed connection (for example, riveting, welding), of course, the mutually fixed connection can also be replaced by an integral structure (for example, using casting process integral forming to manufacture), except for obviously unable to adopt integral forming process.

[0033] In addition, the terms used to represent the position relationship or shape in any of the technical solutions disclosed in the utility model above include the state or shape similar, similar or close to the same, except for another declaration.

[0034] Any component provided by the utility model can be assembled by multiple separate components, or can be a separate component manufactured by an integrated forming process.

[0035] The above is only the preferred embodiment of the utility model, and any change and modification made according to the patent application scope of the utility model should belong to the coverage of the utility model.

Claims

1. A grinding mechanism with balancing device, comprising a machine base, characterized in that The frame is installed on the base, the crossbeam of the frame is installed with a slider which can slide up and down, the front side of the slider is installed with a pipe cylinder which is located on the upper side of the sand belt mechanism and is used to detachably install the workpiece for polishing, the upper end of the pipe cylinder is installed with a counterweight, one end of a steel wire rope is connected with the slider, the other end of the steel wire rope is wound around a pulley assembly which is arranged on the frame and is used to be connected with the counterweight.

2. The grinding mechanism with balancing device according to claim 1, characterized in that The crossbeam of the frame is fixed with a connecting plate, the two sides of the connecting plate are respectively vertically fixed with guide rods which are in sliding cooperation with the slider, the lower ends of the two guide rods are fixed with limit plates.

3. A grinding mechanism with balancing device according to claim 1 or 2, characterized in that The pulley assembly comprises a first pulley which is installed on the upper end of the connecting plate, a second pulley which is installed on the upper end of the upright column which is located on one side of the frame, one end of the steel wire rope is connected with the slider, the other end of the steel wire rope is sequentially wound around the first pulley and the second pulley.

4. The grinding mechanism with balancing device according to claim 3, characterized in that The other end of the steel wire rope is connected with a counterweight connecting piece.

5. A grinding mechanism with balancing device according to claim 1, 2 or 4, characterized in that The front end of the slider is fixed with a slider connecting piece, the slider connecting piece is provided with an arc-shaped recess which is used for the arc surface of the pipe cylinder to be arranged, the pipe cylinder is buckled with a pipe cylinder fixing piece which is connected with the slider connecting piece through bolts.

6. A grinding mechanism with balancing device according to claim 1, 2 or 4, characterized in that The sand belt mechanism comprises a horizontal installation plate which is vertically arranged on the base, the front side of the horizontal installation plate is rotationally connected with four roller shafts and one of the roller shafts is driven to rotate by a driving mechanism, a sand belt is arranged around the four roller shafts, the upper part of the horizontal installation plate is transversely fixed with a support plate which is located on the lower side of the working section of the sand belt.

7. The grinding mechanism with balancing device according to claim 6, characterized in that The driving mechanism comprises a driven pulley which is installed on the rear end of one of the roller shafts, the base is installed with a speed reduction motor, the output shaft of the speed reduction motor is installed with a driving pulley, a transmission belt is arranged around the driving pulley and the driven pulley.

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