Device for automatically grinding surfaces of special-shaped parts

Abstract

The utility model discloses a device for automatically grinding the surface of a special-shaped part, which comprises a bottom plate, a support guide rail block is fixed on the bottom plate, a fixed block is arranged on the support guide rail block, abrasive paper is detachably arranged below the fixed block, a motor is arranged on the fixed block, and the motor drives a screw rod mechanism to work after speed reduction. A nut seat of the lead screw mechanism is connected with a baffle, the baffle is installed at one end of a jig, the jig is arranged on the bottom plate between the two supporting guide rails in a sliding mode, and a workpiece to be machined clamped on the jig abuts against the abrasive paper. According to the device, the roughness of a ground surface is controlled through the abrasive paper, the contact pressure between the fixing block and the workpiece to be machined and the number of times of back-and-forth pushing driven by the lead screw mechanism, and therefore it can be guaranteed that scratches and slight crushing marks in the machining process can be removed.

Description

Technical Field

[0001] The utility model relates to the technical field of local improvement design of grinding equipment, in particular to a device for automatically grinding the surface of special-shaped parts. Background Art

[0002] The traditional method for surface polishing of special-shaped parts is manual operation. The sandpaper is placed flat on the work surface, the part is pressed by hand, and the sandpaper is pushed back and forth to remove scratches and impressions on the surface of the part. This method is inefficient and difficult to operate. The sweat on the hands can easily damage other surfaces of the part, resulting in unqualified surface quality of the final product.

[0003] In the prior art, the patent with announcement number CN219542606U discloses a reciprocating weld grinding device, comprising a base, a grinding table provided above the base, the base and one side of the grinding table being connected by a support frame, a first motor being fixedly connected to the grinding table, the output shaft end of the first motor being fixedly connected to a crossbar, the other end of the crossbar being rotatably connected to a connecting rod, the right end of the connecting rod being rotatably connected to a slide, a slide groove being provided on the grinding table on the right side of the first motor, the bottom of the slide groove passing through the slide groove and slidingly cooperating with the inner wall of the slide groove, the right end of the grinding table being connected to a limit plate 1, and the right side of the slide groove being connected to the limit plate 1 by a guide device. The utility model drives the grinding head to move by the first motor, and the first motor continuously works to perform reciprocating left and right grinding on the workpiece to be polished, thereby avoiding the problem of scratches on the operator's hands caused by manual grinding, reducing the risk factor of grinding the workpiece to be polished, and the grinding head has a large grinding area, thereby improving the efficiency of grinding the workpiece.

[0004] The patent with announcement number CN219293481U discloses a part surface grinder, which automatically changes the grinding surface through the cooperation of a rotary jacking device, a clamping device and a horizontal clamping device; increases the grinding area through the cooperation of the grinding device and the rotary jacking device; cools the grinding area of ​​the equipment through a cooling and dust removal device to collect metal dust; includes a table, a first cylinder, a rubber clamping head, a second cylinder, a motor and a grinding disc, the first cylinder is installed on the upper side of the middle of the table, the moving end of the first cylinder points to the table, the upper end of the rubber clamping head is connected to the moving end of the first cylinder through a bearing, the second cylinder is installed in the front of the table, the moving end of the second cylinder points to the rear of the table, the fixed end of the reduction motor is connected to the moving end of the second cylinder through a connecting plate, and the grinding disc is connected to the output end of the reduction motor; also includes a processing table, a rotary jacking device, a clamping device, a horizontal clamping device, a grinding device and a cooling and dust removal device.

[0005] In order to solve one of the above problems, the present application provides a device for automatically grinding the surface of special-shaped parts. Utility Model Content

[0006] The purpose of the utility model is to solve the problems existing in the prior art, and to propose a device for automatic surface grinding of special-shaped parts. The roughness of the ground surface is controlled by the sandpaper, the contact pressure between the fixed block and the workpiece to be processed, combined with the number of back and forth pushes driven by the screw mechanism, so as to ensure that scratches and slight bruises in the processing process are removed.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device for automatically grinding the surface of special-shaped parts, comprising a base plate, a supporting guide block is fixed on the base plate, a fixed block is installed on the supporting guide block, sandpaper is detachably provided under the fixed block, a motor is installed on the fixed block, and the motor drives the screw mechanism to work after deceleration. The nut seat of the screw mechanism is connected to the baffle, which is used to drive the baffle to reciprocate linearly. The baffle is installed on one end of the jig, and the jig moves with the baffle. The jig is slidably arranged on the base plate between the two supporting guide rails. The workpiece to be processed clamped on the jig contacts the sandpaper, and the workpiece to be processed on the jig reciprocates linearly with the baffle. Relative to the fixed sandpaper, the workpiece to be processed and the sandpaper move relative to each other to complete the operation of automatically grinding the surface of the workpiece to be processed.

[0008] Furthermore, the jig as described above is provided with a limiting assembly, and the workpiece to be processed is clamped in the limiting space formed by the limiting assembly, that is, the workpiece to be processed is clamped and fixed on the jig.

[0009] Furthermore, the limiting assembly as described above includes a connecting portion and a limiting protrusion located on the upper part of the jig. The connecting portion and the limiting protrusion can be either components that are integrated with the jig or components that are assembled and fixed with a split design. The two connecting portions are arranged relative to each other and are respectively located at the front end and the rear end. The two limiting protrusions are arranged relative to each other and are respectively located at the upper left side and the upper right side.

[0010] Furthermore, the two connecting portions and the two limiting protrusions form a limiting space for clamping the workpiece to be processed, so as to clamp the four contact parts of the workpiece to be processed.

[0011] Furthermore, the connection part as described above is provided with a mounting hole, and the baffle is provided with a screw hole corresponding to the mounting hole. The jig and the baffle are connected by bolts. The two connection parts of the jig are provided with mounting holes. The baffle and any one of the connection parts can be threaded and fixed. The baffle is slidably set on the two supporting guide blocks, playing a major supporting role, so that the contact pressure between the jig and the base plate is reduced, and the friction between the jig and the base plate is small, which facilitates the smooth linear movement of the jig.

[0012] Furthermore, the fixing block as described above is grooved and connected to the pad block, and the supporting guide rail block is processed with a step position, and both the fixing block and the pad block cooperate with the step position. After assembly, the bottom surfaces of the pad block and the fixing block are not coplanar.

[0013] Furthermore, the pad block as described above is an L-shaped structure, and the two pad blocks are arranged opposite to each other and the sandpaper is fixed on the bottom surface of the fixed block. A part of the L-shaped pad block is placed in the groove of the fixed block and fixedly connected, while the other part of the pad block has sandpaper placed between it and the bottom surface of the fixed block. As the pad block and the fixed block are tightened, the sandpaper is pressed and adhered to the fixed block.

[0014] Furthermore, the motor as described above is mounted on a mounting base, which is fixed to a fixing block. The motor and the matching reducer are generally integrated into an integral design and mounted on one side of the mounting base.

[0015] Furthermore, a synchronous belt transmission mechanism is provided on the mounting seat as described above, and the motor drives the synchronous belt transmission mechanism after deceleration, and the synchronous belt transmission mechanism is connected to the screw of the screw mechanism, and the screw is connected to the nut seat. The synchronous belt transmission mechanism includes a driving pulley, a driven pulley and a synchronous belt, which are installed on the other side of the mounting seat. The output shaft of the motor after deceleration by the reducer drives the driving pulley to rotate, and the driving pulley drives the driven pulley to rotate through the synchronous belt, and the driven pulley drives the screw to rotate, so that the corresponding nut seat makes a reciprocating linear motion along the screw, indirectly driving the baffle and the jig to make a linear reciprocating motion together.

[0016] Furthermore, the base plate as described above is bolted to connect the support rail block, the support rail block is threadedly connected to the fixing block, and the fixing block is threadedly connected to the pad block and the mounting seat.

[0017] Compared with the prior art, the beneficial effect of the present invention is that the present invention controls the roughness of the ground surface through the sandpaper, the contact pressure between the fixed block and the workpiece to be processed, combined with the number of back and forth pushes driven by the screw mechanism, so as to ensure that scratches and slight bruises in the processing process are removed. Compared with the operation of manually pressing the workpiece to be processed and pushing it back and forth on the sandpaper, the efficiency is improved and it is not easy to damage other surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional Figure 1 ;

[0019] Figure 2 The three-dimensional Figure 2 ;

[0020] Figure 3 This is an explosion diagram of the utility model.

[0021] In the figure: 1. Base plate; 2. Support guide block; 21. Step position; 3. Jig; 31. Limiting protrusion; 32. Connecting part; 4. Workpiece to be processed; 5. Baffle; 6. Nut seat; 7. Screw; 8. Motor; 9. Mounting seat; 10. Fixing block; 11. Pad; 12. Sandpaper. DETAILED DESCRIPTION

[0022] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "fixed", "installed", "connected", "set", etc. should be understood in a broad sense. For example, when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "installed on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it 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, or it can be a communication between the two elements.

[0024] For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] Reference Figure 1-3As shown, the utility model is a device for automatic surface grinding of special-shaped parts, including a base plate 1, a supporting guide block 2 is fixed on the base plate 1, a fixed block 10 is installed on the supporting guide block 2, and a sandpaper 12 is detachably provided under the fixed block 10, and a motor 8 is installed on the fixed block 10. After the motor 8 is decelerated, it drives the screw mechanism to work, and the nut seat 6 of the screw mechanism is connected to the baffle 5, which is used to drive the baffle 5 to move back and forth linearly. The baffle 5 is installed on one end of the jig 3, and the jig 3 is slidably arranged on the base plate 1 between the two supporting guide rails. The workpiece 4 to be processed clamped on the jig 3 contacts the sandpaper 12, and the workpiece 4 to be processed on the jig 3 reciprocates linearly with the baffle 5. Relative to the fixed sandpaper 12, the workpiece 4 to be processed and the sandpaper 12 move relative to each other to complete the operation of automatically grinding the surface of the workpiece 4 to be processed.

[0028] Example 2

[0029] Reference Figure 1-3 As shown, based on the technical solution of embodiment 1, a device for automatic surface grinding of special-shaped parts is provided. Figure 3 As shown, the jig 3 is provided with a limiting assembly, and the workpiece 4 to be processed is clamped in the limiting space formed by the limiting assembly, that is, the workpiece 4 to be processed is clamped and fixed on the jig 3. Furthermore, the limiting assembly includes a connecting portion 32 and a limiting protrusion 31 located on the upper part of the jig 3. The two connecting portions 32 are arranged oppositely and are respectively located at the front end and the rear end, and the two limiting protrusions 31 are arranged oppositely and are respectively located on the upper left and upper right sides. The connecting portion 32 and the limiting protrusion 31 can be either a component integral with the jig 3 or a component of a split design and assembled and fixed. Specifically, the two connecting portions 32 and the two limiting protrusions 31 enclose a limiting space for clamping the workpiece 4 to be processed, which is used to clamp the four contact parts of the workpiece 4 to be processed.

[0030] Furthermore, the connecting portion 32 is provided with a mounting hole, and the baffle 5 is provided with a screw hole corresponding to the mounting hole. The jig 3 and the baffle 5 are connected by bolts. In order to facilitate quick assembly and connection, the two connecting portions 32 of the jig 3 are provided with mounting holes. The baffle 5 can be threadedly connected and fixed to any one of the connecting portions 32. The baffle 5 is slidably set on the two supporting guide blocks 2, playing a major supporting role, so that the contact pressure between the jig 3 and the base plate 1 is reduced, and the friction between the jig 3 and the base plate 1 is small, which facilitates the smooth linear movement of the jig 3.

[0031] Example 3

[0032] Reference Figure 1-3 As shown, based on the technical solution of embodiment 1, a device for automatic surface grinding of special-shaped parts is provided. Figure 2 and Figure 3It can be seen that the fixed block 10 is grooved and connected to the pad 11, and the support guide block 2 is machined with a step position 21. The fixed block 10 and the pad 11 both cooperate with the step position 21 because the bottom surfaces of the pad 11 and the fixed block 10 are not coplanar after assembly. Specifically, the pad 11 is an L-shaped structure. The two pads 11 are arranged opposite each other and the sandpaper 12 is fixed to the bottom surface of the fixed block 10. A part of the L-shaped pad 11 is placed in the groove of the fixed block 10 for fixed connection, while the other part of the pad 11 has the sandpaper 12 placed between it and the bottom surface of the fixed block 10. As the pad 11 and the fixed block 10 are tightened, the sandpaper 12 is pressed against the fixed block 10.

[0033] Furthermore, the motor 8 is mounted on a mounting base 9, which is fixed on a fixed block 10. A synchronous belt transmission mechanism is provided on the mounting base 9. After the motor 8 is decelerated, it drives the synchronous belt transmission mechanism to work. The synchronous belt transmission mechanism is connected to the screw 7 of the screw mechanism, and the screw 7 is connected to the nut seat 6. Specifically, the motor 8 and the matching reducer are generally integrated into an integrated design and are mounted on one side of the mounting base 9, while the synchronous belt transmission mechanism includes a driving pulley, a driven pulley and a synchronous belt, which are mounted on the other side of the mounting base 9. The output shaft of the motor 8 after being decelerated by the reducer drives the driving pulley to rotate, and the driving pulley drives the driven pulley to rotate through the synchronous belt, and the driven pulley drives the screw 7 to rotate, so that the corresponding nut seat 6 performs reciprocating linear motion along the screw 7, indirectly driving the baffle 5 and the jig 3 to perform linear reciprocating motion together.

[0034] Furthermore, the base plate 1 is fastened with bolts to connect the support guide rail block 2 , the support guide rail block 2 is threadedly connected to the fixing block 10 , and the fixing block 10 is threadedly connected to the cushion block 11 and the mounting seat 9 .

[0035] The operating method of the device of the present invention is as follows: first, the base plate 1 is installed on the workbench to ensure that it is not loose in the state of pushing the grinding surface, and the workpiece 4 to be processed on the jig 3 is not offset, and the guide rail support block, the fixed block 10 and the baffle 5 are assembled together. Then, according to the grinding requirements for roughness, the back of the corresponding sandpaper 12 is glued to the fixed block 10 and fixed and pressed with the pad 11. The connecting sticker is reusable, and different types of sandpaper 12 can be replaced. Then, the workpiece 4 to be processed whose surface needs to be ground is clamped on the jig 3. Different jigs 3 can be replaced later, so that different parts can be ground. The power device can drive the entire small surface of the grinding part by combining the motor 8 and the screw mechanism.

[0036] Working principle: The roughness of the surface of the workpiece 4 to be processed is controlled by the type of sandpaper 12, the pressure of the sandpaper 12 pressed on the fixed block 10 in contact with the workpiece 4 to be processed, and the number of back and forth movements of the jig 3 during operation. This ensures that scratches or slight bruises on the workpiece surface produced during the processing are removed.

[0037] In the device of the present invention, the assembly and matching relationship of the various components involved, the sandpaper 12, the screw mechanism, the synchronous belt transmission mechanism, the motor 8 and the reducer and the supporting control software are existing technologies or materials. The relevant technical personnel can purchase them directly from the market or customize them according to the required product models and specifications.

[0038] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity or industrial electricity, and the main controller can be a conventional known device such as a computer that plays a control role.

[0039] The above description is only a preferred specific embodiment of the present invention. Common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above embodiment, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. Any person skilled in the art who is familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the scope of protection of the present invention.

Claims

1. A device for automatically grinding the surface of special-shaped parts, comprising a base plate (1), characterized in that: A support guide rail block (2) is fixed on the base plate (1), a fixed block (10) is installed on the support guide rail block (2), and sandpaper (12) is detachably provided below the fixed block (10). A motor (8) is installed on the fixed block (10), and the motor (8) drives the screw mechanism to work after deceleration. The nut seat (6) of the screw mechanism is connected to the baffle (5), and the baffle (5) is installed on one end of the jig (3). The jig (3) is slidably provided on the base plate (1) between the two support guide rails, and the workpiece (4) to be processed clamped on the jig (3) contacts the sandpaper (12).

2. The device for automatic surface grinding of special-shaped parts according to claim 1, characterized in that: The jig (3) is provided with a limiting assembly, and the workpiece (4) to be processed is clamped in the limiting space formed by the limiting assembly.

3. The device for automatic surface grinding of special-shaped parts according to claim 2, characterized in that: The limiting assembly comprises a connecting portion (32) and a limiting protrusion (31) located on the upper part of the jig (3); the two connecting portions (32) are arranged oppositely and are respectively located at the front end and the rear end; the two limiting protrusions (31) are arranged oppositely and are respectively located at the upper left side and the upper right side.

4. The device for automatic surface grinding of special-shaped parts according to claim 3, characterized in that: The two connecting portions (32) and the two limiting protrusions (31) enclose a limiting space for clamping a workpiece (4) to be processed.

5. The device for automatic surface grinding of special-shaped parts according to claim 4, characterized in that: The connecting portion (32) is provided with a mounting hole, the baffle (5) is provided with a screw hole corresponding to the mounting hole, the jig (3) and the baffle (5) are connected by bolts, and the baffle (5) is slidably arranged on the two supporting guide rail blocks (2).

6. The device for automatic surface grinding of special-shaped parts according to claim 1, characterized in that: The fixing block (10) is grooved and connected to the cushion block (11); a step position (21) is processed on the supporting guide rail block (2); and the fixing block (10) and the cushion block (11) are both matched with the step position (21).

7. The device for automatic surface grinding of special-shaped parts according to claim 6, characterized in that: The pad (11) is an L-shaped structure, and the two pads (11) are arranged opposite to each other and the sandpaper (12) is fixed on the bottom surface of the fixed block (10).

8. The device for automatic surface grinding of special-shaped parts according to claim 7, characterized in that: The motor (8) is mounted on a mounting seat (9), and the mounting seat (9) is fixed on a fixing block (10).

9. The device for automatic surface grinding of special-shaped parts according to claim 8, characterized in that: The mounting seat (9) is provided with a synchronous belt transmission mechanism, and the motor (8) drives the synchronous belt transmission mechanism to work after deceleration, and the synchronous belt transmission mechanism is connected to the screw rod (7) of the screw rod mechanism, and the screw rod (7) is connected to the nut seat (6).

10. The device for automatic surface grinding of special-shaped parts according to claim 9, characterized in that: The base plate (1) is bolted to the support guide rail block (2), the support guide rail block (2) is threadedly connected to the fixing block (10), and the fixing block (10) is threadedly connected to the cushion block (11) and the mounting seat (9).

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