Belt sander for grinding castings

Abstract

The utility model discloses a belt sander for grinding castings, which comprises a support frame, a driving mechanism, a transmission mechanism and a sanding belt mechanism, the driving mechanism, the transmission mechanism and the sanding belt mechanism are all mounted on the support frame, the driving mechanism is in transmission connection with the transmission mechanism, the transmission mechanism is in transmission connection with the sanding belt mechanism, and the driving mechanism comprises a driving motor and a driving wheel. The output end of the driving motor is fixed to the driving wheel. The abrasive belt grinding device has the advantages that by arranging the movable adjusting frame capable of sliding and the driven wheels, the grinding position of the abrasive belt can be rapidly adjusted, and the abrasive belt grinding device meets the machining requirements of castings of different sizes; the tensioning adjusting frame is matched with the telescopic adjusting frame, the tensioning force of the abrasive belt can be accurately controlled, and the grinding stability is improved; a locking hand lever is matched with an insertion hole, so that the position after adjustment is fixed and reliable, and vibration deviation in the machining process is avoided; the whole structure is compact, transmission efficiency is high, operation is easy and convenient, and production efficiency and machining quality are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of belt sander technology, specifically a belt sander for grinding castings. Background Technology

[0002] Surface grinding is a critical process in casting production. Traditional belt abrasive machines often suffer from problems such as inconvenient belt tension adjustment, low precision in grinding position adjustment, and insufficient equipment stability, resulting in low processing efficiency and unstable grinding quality. In existing technologies, some belt abrasive machines use a fixed belt structure, which is difficult to adapt to the processing requirements of castings of different sizes; while some adjustable structures suffer from complex adjustment operations and poor reliability. Therefore, there is an urgent need for a compact, easily adjustable, and highly stable belt abrasive machine for casting grinding.

[0003] Therefore, it is necessary to propose a belt abrasive machine for grinding castings to address the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a belt abrasive machine for grinding castings, which optimizes the transmission structure and adjustment mechanism to achieve precise control of belt tension and flexible adjustment of grinding position, thereby improving processing efficiency and quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A belt abrasive machine for grinding castings includes a support frame, a drive mechanism, a transmission mechanism, and a belt abrasive mechanism. The drive mechanism, transmission mechanism, and belt abrasive mechanism are all mounted on the support frame. The drive mechanism is driven by the transmission mechanism, and the transmission mechanism is driven by the belt abrasive mechanism.

[0007] Preferably, the drive mechanism includes a drive motor and a drive wheel, and the output end of the drive motor is fixed to the drive wheel.

[0008] Preferably, the transmission mechanism includes a driven wheel, a sanding belt main wheel, and a mounting base. The driven wheel and the sanding belt main wheel are respectively mounted on both sides of the mounting base, and the driven wheel is connected to the sanding belt main wheel via a rotating shaft.

[0009] Preferably, the abrasive belt mechanism includes a fixed base, a movable adjustment frame, and a tension adjustment frame, wherein the movable adjustment frame is movably connected to the fixed base, and the tension adjustment frame is installed on the upper part of the fixed base.

[0010] Preferably, the end of the movable adjustment frame is provided with two sets of sanding belt driven wheels, the tension adjustment frame is provided with sanding belt auxiliary wheels, and a sanding belt is wound between the sanding belt main wheel, the sanding belt driven wheel, and the sanding belt auxiliary wheel.

[0011] Preferably, a sliding cavity is provided in the upper part of the fixed base, and the movable adjustment frame includes a sliding rod for sliding connection with the sliding cavity and a C-shaped frame for installing the sanding belt driven wheel.

[0012] Preferably, the fixed base is provided with a locking lever on its side, and the sliding rod is provided with a socket on its side that engages with the locking lever.

[0013] Preferably, a telescopic adjustment frame is provided between the tension adjustment frame and the fixed base. The telescopic adjustment frame includes a fixed cylinder, a spring, a cylinder cover, and a screw. The cylinder cover is connected to the fixed cylinder through the screw. The screw passes through the fixed base, the fixed cylinder, and the cylinder cover in sequence and is threadedly connected.

[0014] Compared with the prior art, the advantages of this utility model are as follows: by setting a sliding movable adjustment frame and multiple sets of driven wheels, the grinding position of the abrasive belt can be quickly adjusted to adapt to the processing needs of castings of different sizes; the tension adjustment frame, in conjunction with the telescopic adjustment frame, can accurately control the tension of the abrasive belt and improve grinding stability; the locking lever and the socket design ensure that the adjusted position is fixed and reliable, avoiding vibration and displacement during processing; the overall structure is compact, the transmission efficiency is high, the operation is simple, and the production efficiency and processing quality are significantly improved. Attached Figure Description

[0015] Figures 1 to 3 This is a schematic diagram of the structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the drive mechanism structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the transmission mechanism structure of this utility model;

[0018] Figure 6 This is a schematic diagram of the connection structure between the fixed base and the movable adjustment frame of this utility model;

[0019] Figure 7 This is a schematic diagram of the movable adjustment frame structure of this utility model;

[0020] Figure 8 This is a schematic diagram of the tension adjustment frame structure of this utility model;

[0021] Figure 9 This is a schematic diagram of the telescopic adjustment frame structure of this utility model.

[0022] In the attached diagram, the following are the reference numerals: 1. Support frame; 2. Drive mechanism; 21. Drive motor; 22. Drive wheel; 3. Transmission mechanism; 31. Mounting base; 32. Driven wheel; 33. Sanding belt main wheel; 34. Rotating shaft; 4. Sanding belt mechanism; 41. Fixed base; 411. Sliding cavity; 412. Locking lever; 42. Moving adjustment frame; 421. Sliding rod; 422. C-shaped frame; 423. Sanding belt driven wheel; 424. Insertion hole; 43. Tension adjustment frame; 431. Sanding belt auxiliary wheel; 5. Telescopic adjustment frame; 51. Fixed cylinder; 52. Spring; 53. Cylinder cover; 54. Screw; 55. Sanding belt. Detailed Implementation

[0023] 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 protection scope of the present utility model.

[0024] like Figures 1 to 9 As shown, this embodiment provides a technical solution: a belt abrasive machine for grinding castings, including a support frame 1, a drive mechanism 2, a transmission mechanism 3, and a belt abrasive mechanism 4. The drive mechanism 2, the transmission mechanism 3, and the belt abrasive mechanism 4 are all mounted on the support frame 1. The drive mechanism 2 is connected to the transmission mechanism 3, and the transmission mechanism 3 is connected to the belt abrasive mechanism 4.

[0025] Furthermore, the drive mechanism 2 includes a drive motor 21 and a drive wheel 22, with the output end of the drive motor 21 fixed to the drive wheel 22.

[0026] The above solution has the following advantages: the direct connection between the drive motor 21 and the drive wheel 22 reduces power loss and improves transmission efficiency; the fixed connection (such as key connection) between the motor output end and the drive wheel 22 ensures that there is no slippage during the transmission process and guarantees the stability of the sanding belt 55.

[0027] Furthermore, the transmission mechanism 3 includes a driven wheel 32, a sanding belt main wheel 33, and a mounting base 31. The driven wheel 32 and the sanding belt main wheel 33 are respectively mounted on both sides of the mounting base 31. The driven wheel 32 is connected to the sanding belt main wheel 33 through a rotating shaft 34.

[0028] The above scheme has the following advantages: the driven wheel 32 and the main wheel 33 of the sand belt are driven by the rotating shaft 34 to form a stable transmission chain, avoiding the elastic deformation problem of traditional belt drive; the layout design on both sides of the mounting base 31 makes the structure more compact and occupies less space.

[0029] Furthermore, the sanding belt mechanism 4 includes a fixed base 41, a movable adjustment frame 42, and a tension adjustment frame 43. The movable adjustment frame 42 is movably connected to the fixed base 41, and the tension adjustment frame 43 is installed on the upper part of the fixed base 41.

[0030] The above scheme has the following advantages: the movable connection (such as sliding connection) between the movable adjustment frame 42 and the fixed base 41 enables flexible adjustment of the grinding position of the abrasive belt 55; the setting of the tension adjustment frame 43 provides a structural basis for adjusting the tension of the abrasive belt 55.

[0031] Furthermore, the end of the movable adjustment frame 42 is provided with two sets of sanding belt driven wheels 423, the tension adjustment frame 43 is provided with sanding belt auxiliary wheels 431, and a sanding belt 55 is wound between the sanding belt main wheel 33, the sanding belt driven wheels 423, and the sanding belt auxiliary wheels 431.

[0032] The above scheme has the following benefits: the two sets of driven wheels 423 form a double support structure, which enhances the stability of the sanding belt 55; the cooperation between the sanding belt auxiliary wheel 431, the main wheel 33, and the driven wheel 423 optimizes the wrap angle of the sanding belt 55 and improves the grinding contact area and uniformity.

[0033] Furthermore, a sliding cavity 411 is provided in the upper part of the fixed base 41, and the movable adjustment frame 42 includes a sliding rod 421 for sliding connection with the sliding cavity 411 and a C-shaped frame 422 for mounting the sanding belt driven wheel 423.

[0034] The above scheme has the following advantages: the sliding fit between the sliding cavity 411 and the sliding rod 421 (such as the dovetail groove structure) enables the high-precision linear displacement of the movable adjustment frame 42; the design of the C-shaped frame 422 facilitates the installation and replacement of the sand belt driven wheel 423.

[0035] Furthermore, a locking lever 412 is provided on the side of the fixed base 41, and an insertion hole 424 is provided on the side of the sliding rod 421 to cooperate with and connect with the locking lever 412.

[0036] The above solution has the following advantages: the detachable connection between the locking lever 412 and the socket 424 (such as a pin-type structure) allows the adjusted position to be locked quickly, preventing displacement deviation caused by processing vibration; multiple sets of sockets 424 (such as those distributed along the axial direction of the sliding rod 421) provide multi-level adjustment and positioning functions.

[0037] Furthermore, a telescopic adjustment frame 5 is provided between the tension adjustment frame 43 and the fixed base 41. The telescopic adjustment frame 5 includes a fixed cylinder 51, a spring 52, a cylinder cover 53 and a screw 54. The cylinder cover 53 is connected to the fixed cylinder 51 through the screw 54. The screw 54 passes through the fixed base 41, the fixed cylinder 51 and the cylinder cover 53 in sequence and is threadedly connected.

[0038] The above-mentioned solution has the following advantages: the combination of spring 52 and screw 54 forms an elastic tensioning mechanism, which can automatically compensate for the tension force according to the wear of the sanding belt 55; the thread adjustment of the cylinder cover 53 and screw 54 (such as the helix angle design) realizes the fine control of the tension force (such as ±0.5N·m adjustment accuracy); the nested structure of the fixed cylinder 51 and screw 54 avoids the spring 52 from being exposed, thus improving safety.

[0039] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a sliding movable adjustment frame 42 and multiple sets of driven wheels 423, the grinding position of the abrasive belt 55 can be quickly adjusted to adapt to the processing requirements of castings of different sizes; the tension adjustment frame 43, in conjunction with the telescopic adjustment frame 5, can precisely control the tension of the abrasive belt 55 and improve grinding stability; the design of the locking lever 412 and the insertion hole 424 ensures that the adjusted position is fixed and reliable, avoiding vibration and displacement during processing; the overall structure is compact, the transmission efficiency is high, the operation is simple, and the production efficiency and processing quality are significantly improved.

[0040] Working principle:

[0041] The belt sander includes a support frame 1, on which a drive mechanism 2, a transmission mechanism 3 and a belt sanding mechanism 4 are mounted. The drive mechanism 2 includes a drive motor 21 and a drive wheel 22. The drive motor 21 is fixed to the support frame 1 by bolts, and its output shaft is keyed to the drive wheel 22.

[0042] The mounting base 31 of the transmission mechanism 3 is fixed to the support frame 1. The driven wheel 32 and the sanding belt main wheel 33 are respectively mounted on both sides of the mounting base 31 through bearings. The driven wheel 32 and the sanding belt main wheel 33 are connected by a rotating shaft 34. The driving wheel 22 and the driven wheel 32 are driven by a belt (not shown in the figure).

[0043] The fixed seat 41 of the sanding belt mechanism 4 is bolted to the support frame 1. The sliding rod 421 of the movable adjustment frame 42 is slidably engaged with the sliding cavity 411 of the fixed seat 41. Two sets of sanding belt driven wheels 423 are mounted on the end of the sliding rod 421 through the C-shaped frame 422. The tension adjustment frame 43 is installed on the top of the fixed seat 41 through the telescopic adjustment frame 5. The fixed cylinder 51 of the telescopic adjustment frame 5 is welded to the fixed seat 41. The cylinder cover 53 is connected to the fixed cylinder 51 through the screw 54. The screw 54 passes through the fixed seat 41 and is threadedly engaged with the cylinder cover 53. The spring 52 is sleeved on the outside of the screw 54 and is located between the fixed cylinder 51 and the cylinder cover 53.

[0044] The sanding belt 55 is sequentially wound around the main sanding belt pulley 33, the driven sanding belt pulley 423, and the auxiliary sanding belt pulley 431. The tension of the sanding belt 55 is adjusted by rotating the screw 54 to adjust the compression of the spring 52. The movable adjustment bracket 42 can slide along the sliding cavity 411, and its position is locked by inserting the locking lever 412 into the insertion hole 424 of the sliding rod 421.

[0045] According to the casting size, slide the adjustment bracket 42 to the appropriate position and fix it with the locking lever 412; rotate the screw 54 to adjust the tension of the sand belt 55 to ensure smooth operation of the sand belt 55; start the drive motor 21, and the sand belt 55 rotates with the main wheel 33 to grind the casting to be processed.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A belt sander for casting grinding, characterized by: It includes support frame (1), drive mechanism (2), transmission mechanism (3) and abrasive belt mechanism (4), drive mechanism (2), transmission mechanism (3) and abrasive belt mechanism (4) are installed on support frame (1), drive mechanism (2) is connected with transmission mechanism (3), transmission mechanism (3) is connected with abrasive belt mechanism (4).

2. The belt sander for grinding a casting according to claim 1, wherein: The drive mechanism (2) includes drive motor (21) and driving wheel (22), the output end of the drive motor (21) is fixed to the driving wheel (22).

3. The belt sander for grinding a casting according to claim 2, wherein: The transmission mechanism (3) includes driven wheel (32), abrasive belt main wheel (33) and mounting seat (31), the driven wheel (32), abrasive belt main wheel (33) are installed on both sides of mounting seat (31) respectively, the driven wheel (32) is connected with abrasive belt main wheel (33) through rotating shaft (34).

4. The belt sander for grinding a casting according to claim 3, wherein: The abrasive belt mechanism (4) includes fixed seat (41), mobile adjusting frame (42) and tension adjusting frame (43), the mobile adjusting frame (42) is movably connected with the fixed seat (41), the tension adjusting frame (43) is installed on the upper portion of the fixed seat (41).

5. The belt sander for grinding a casting according to claim 4, wherein: The end of the mobile adjusting frame (42) is provided with two groups of abrasive belt driven wheels (423), the tension adjusting frame (43) is provided with abrasive belt auxiliary wheel (431), the abrasive belt main wheel (33), abrasive belt driven wheel (423), abrasive belt auxiliary wheel (431) are wound with abrasive belt (55) between them.

6. The belt sander for grinding a casting according to claim 5, wherein: The upper portion of the fixed seat (41) is provided with sliding cavity (411), the mobile adjusting frame (42) includes sliding rod (421) for sliding connection with the sliding cavity (411) and C-shaped frame (422) for installing abrasive belt driven wheel (423).

7. The belt sander for grinding a casting according to claim 6, wherein: The side of the fixed seat (41) is provided with locking hand lever (412), the side of the sliding rod (421) is provided with insertion hole (424) matched with the locking hand lever (412).

8. The belt sander for grinding a casting according to claim 7, wherein: The tension adjusting frame (43) and the fixed seat (41) are provided with telescopic adjusting frame (5), the telescopic adjusting frame (5) includes fixed cylinder (51), spring (52), cylinder cover (53) and screw rod (54), the cylinder cover (53) is connected with the fixed cylinder (51) through the screw rod (54), the screw rod (54) is threaded into the fixed seat (41), the fixed cylinder (51) and the cylinder cover (53) in sequence.

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