A bolt fastener machining and edging device
By designing a limit device, flexible limiting of nuts and bolts is achieved, solving the problem that existing devices cannot simultaneously adapt to different limiters, thus improving production efficiency and product precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAICANG KELUOSONG FASTENER CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-29
AI Technical Summary
Existing edge grinding equipment cannot simultaneously adapt to the different limit requirements of nuts and bolts, resulting in frequent replacement of limit grinding molds or fixtures, which reduces production efficiency and product accuracy.
A bolt fastener processing edge grinding device was designed. The device uses a limiting device including a rectangular block, a limiting plate and a connecting rod structure. By adjusting the distance and angle of the limiting plate, the nut and bolt can be flexibly limited and fixed, avoiding frequent replacement of limiting molds or clamps.
It improved production efficiency, avoided positioning errors, and enhanced the processing accuracy and pass rate of products.
Smart Images

Figure CN224295500U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt fastener processing technology, and in particular to a bolt fastener processing edge grinding device. Background Technology
[0002] An edge grinding device is a piece of equipment used to grind the edges of bolts and fasteners. Its main function is to remove irregular parts such as burrs, flash, and sharp angles generated during the manufacturing process of bolts or other fasteners, thereby improving the quality and precision of the fasteners.
[0003] During the production of bolt fasteners, when using a grinding machine to grind the surface of nuts and bolt caps, the bolt or nut to be ground is positioned on a bracket. Then, the first electric telescopic rod is activated, causing the bracket to slide to a certain position within the grinding machine, conveying the fixed bolt or nut between two grinding belts. Next, the second electric telescopic rod is activated, moving the abutment plate to one end, pushing one side of the grinding belt against the surface of the bolt or nut. Finally, the motor is activated, driving the rotating rollers to rotate, thus moving the grinding belt against the surface of the nut or bolt cap. The surfaces of bolts and nuts are ground smooth. Common grinding devices on the market generally use a single limiting method when grinding nuts and bolts. Since nuts need to be supported and limited from the inside out, while bolts need to be clamped and limited from the outside in, existing devices cannot simultaneously adapt to two different limiting requirements. This forces operators to frequently change special limiting grinding tools or fixtures when processing nuts and bolts. Frequent changes not only significantly reduce production efficiency, but also the repeated disassembly and assembly of fixtures may lead to positioning errors, affecting product processing accuracy and thus reducing product qualification rate. Utility Model Content
[0004] The purpose of this invention is to provide a grinding device for processing bolt fasteners, which aims to solve the problems in the prior art.
[0005] This invention is implemented as follows: a bolt fastener edge-grinding device includes an edge-grinding machine and two grinding belts. A first electric telescopic rod is fixedly installed on one side of the inner wall of the edge-grinding machine. The output rod of the first electric telescopic rod is fixedly installed with a bracket, one end of which is slidably installed in the inner wall of the edge-grinding machine. Several rotating rollers are rotatably installed on one side of both ends of the edge-grinding machine. Motors are fixedly installed on both sides of both ends of the edge-grinding machine, with the output end of the motor fixedly installed on one side of one of the rotating rollers via a coupling. The grinding belts are sleeved on the outer surfaces of the rotating rollers. The grinding machine has a second electric telescopic rod fixedly installed on both ends. The output rod of the second electric telescopic rod is fixedly installed with an abutment plate. One side of the abutment plate abuts against one side of the grinding belt. A limiting device is provided on one side of the bracket. The limiting device can be used to limit the object by placing the object on the outer surface of the two limiting plates or placing it between the two limiting plates with one side of the object abutting against the rectangular block. Then, by adjusting the distance between the two limiting plates and limiting the object, different objects can be limited and fixed.
[0006] Preferably, the limiting device includes a rectangular block and a locking block, wherein a mounting hole is provided on one side of the bracket, and the rectangular block is inserted into the inner wall of the mounting hole, and a sliding hole is symmetrically provided on one side of the rectangular block; a fixing mechanism is provided between the mounting hole and the rectangular block, for fixing and limiting the rectangular block in the mounting hole; two limiting plates, wherein one end of the two limiting plates is slidably installed in the inner wall of the sliding hole, and rubber blocks are fixedly installed on both sides of the limiting plates; two connecting rods, wherein the two ends of the two connecting rods are rotatably installed in the inner wall of the locking block and the inner wall of one end of the limiting plate, respectively; a rotating rod, wherein one end of the rotating rod is rotatably installed on one side of the rectangular block, and a plurality of abutment blocks are symmetrically fixedly installed on the outer surface of the rotating rod, wherein one side of two opposing abutment blocks abuts against the two sides of the locking block, and the rotating rod and the abutment blocks are both inserted into the inner wall of the locking block.
[0007] Preferably, anti-slip blocks are fixedly installed on both sides of the abutment block, and one side of the anti-slip block abuts against one side of the card hole block.
[0008] Preferably, bearings are fixedly installed on the outer surfaces of both ends of the connecting rod, and the outer rings of several bearings are respectively fixedly installed in the inner wall of the locking block and the inner wall of the limiting plate.
[0009] Preferably, the longitudinal section of the limiting plate near the connecting rod is cross-shaped, and the longitudinal section of the inner wall of the sliding hole is cross-shaped.
[0010] Preferably, the fixing mechanism includes a locking rod, and the rectangular block has locking slots on both sides. One end of the locking rod passes through one side of the bracket and extends into the mounting hole before being inserted into the inner wall of the locking slot. A spring is sleeved on the outer surface of one end of the locking rod, and both ends are fixedly installed on one side of the locking rod and one side of the bracket, respectively.
[0011] Preferably, a plurality of circular rollers are rotatably mounted on the side of the lever away from the spring, and the plurality of circular rollers are arranged at equal intervals.
[0012] The beneficial effects of the bolt fastener processing edge grinding device disclosed in this utility model are as follows: By setting a limiting device, the object can be placed on the outer surface of two limiting plates, or placed between the two limiting plates with one side of the object abutting against the rectangular block, depending on the type of fastener. Then, by simply adjusting the distance between the two limiting plates and limiting them, different objects can be limited and fixed. By adjusting the limiting in this way, it is not necessary to frequently change different limiting molds or fixtures, which is convenient to operate, greatly improves production efficiency, avoids the problem of repeated disassembly and assembly of fixtures that may lead to positioning errors and affect the product processing accuracy, and improves the product qualification rate. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Figure 2 This is a three-dimensional structural diagram of the edge grinding machine of this utility model;
[0015] Figure 3 This is a three-dimensional structural diagram of the rectangular block of this utility model;
[0016] Figure 4 This is a three-dimensional structural diagram of the bracket of this utility model;
[0017] Figure 5 This is the system control flowchart of this utility model.
[0018] Markings: 1. Edge grinding machine; 2. Limiting device; 3. First electric telescopic rod; 4. Bracket; 5. Rotary roller; 6. Motor; 7. Grinding belt; 8. Second electric telescopic rod; 9. Abutment plate; 21. Mounting hole; 22. Fixing mechanism; 221. Locking rod; 222. Spring; 223. Locking groove; 224. Circular roller; 23. Rectangular block; 24. Sliding hole; 25. Limiting plate; 26. Connecting rod; 27. Locking hole block; 28. Rotating rod; 29. Abutment block; 210. Anti-slip block; 211. Bearing; 212. Rubber block. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0020] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0021] The implementation of this utility model will be described in detail below with reference to specific embodiments.
[0022] In this embodiment:
[0023] Reference Figure 1 The diagram shows a preferred embodiment of the present invention.
[0024] This embodiment of a bolt fastener edge-grinding device includes an edge-grinding machine 1 and two grinding belts 7. A first electric telescopic rod 3 is fixedly installed on one side of the inner wall of the edge-grinding machine 1. A bracket 4 is fixedly installed on the output rod of the first electric telescopic rod 3. One end of the bracket 4 is slidably installed in the inner wall of the edge-grinding machine 1. Several rotating rollers 5 are rotatably installed on one side of both ends of the edge-grinding machine 1. Motors 6 are fixedly installed on both sides of both ends of the edge-grinding machine 1. The output end of the motor 6 is fixedly installed on one side of one of the rotating rollers 5 by means of a coupling. The grinding belts 7 are sleeved on the outer surface of the several rotating rollers 5. A second electric telescopic rod 8 is fixedly installed on both sides of the end. The output rod of the second electric telescopic rod 8 is fixedly installed with an abutment plate 9. One side of the abutment plate 9 abuts against one side of the grinding belt 7. A limit device 2 is provided on one side of the bracket 4. The limit device 2 can be used to limit the object according to the needs of the object. The object can be placed on the outer surface of the two limit plates 25, or placed between the two limit plates 25 and one side of the object abuts against the rectangular block 23. Then, by adjusting the distance between the two limit plates 25 and limiting, different objects can be limited and fixed. During the production of bolt fasteners, when the edge grinding machine 1 is used to grind the surface of the nut and the bolt head, the bolt or nut to be ground is fixed on the bracket 4 by the limiting device 2. Then, the first electric telescopic rod 3 is started to drive the bracket 4 to slide in the inner wall of the edge grinding machine 1 to a certain position, and the fixed bolt or nut is transported between the two grinding belts 7. Then, the second electric telescopic rod 8 is started to drive the abutment plate 9 to move to one end, pushing one side of the grinding belt 7 to abut against the surface of the bolt head or nut. Then, the motor 6 is started to drive the rotating roller 5 to rotate, so that the grinding belt 7 can grind the surface of the nut or bolt head, and grind it flat.
[0025] Figure 1-5The limiting device 2 shown includes a rectangular block 23 and a locking block 27. A mounting hole 21 is provided on one side of the bracket 4, and the rectangular block 23 is inserted into the inner wall of the mounting hole 21. A sliding hole 24 is symmetrically provided on one side of the rectangular block 23. A fixing mechanism 22 is disposed between the mounting hole 21 and the rectangular block 23, used to fix and limit the rectangular block 23 in the mounting hole 21. Two limiting plates 25 are provided, with one end of each limiting plate 25 slidably installed in the inner wall of the sliding hole 24. Rubber blocks 212 are fixedly installed on both sides of 5; two connecting rods 26, the two ends of which are respectively rotatably installed in the inner wall of the locking block 27 and the inner wall of one end of the limiting plate 25; a rotating rod 28, one end of which is rotatably installed on one side of the rectangular block 23, and several abutting blocks 29 are symmetrically fixedly installed on the outer surface of the rotating rod 28, two opposite abutting blocks 29 abutting one side of which respectively abut against the two sides of the locking block 27, and the rotating rod 28 and the abutting blocks 29 are both inserted into the inner wall of the locking block 27. By setting the limiting device 2, the rectangular block 23 inserted into the mounting hole 21 can be fixed by the limiting mechanism, and the two limiting plates 25 can be fixed on the bracket 4. When grinding the fastener, depending on the type of fastener, such as a nut, it can be sleeved on the outer surface of the two limiting plates 25, so that one side abuts against one side of the rectangular block 23. Then, hold the locking block 27 and slide it upward on the rotating rod 28 and several abutting blocks 29 to a certain position, driving the connecting rod 26 to rotate to a certain angle in the inner wall of the locking block 27 and the limiting plate 25, pushing the two limiting plates 25 to slide in opposite directions in the sliding hole 24, supporting and fixing the inner wall of the nut. Then rotate the rotating rod 28 and the abutting blocks 29 to a certain angle. The inner walls of the abutment block 29 and the locking block 27 are offset, and the abutment block 29 abuts against both sides of the locking block 27 to limit and lock it in place. This fixes the adjusted limiting plate 25. When grinding nuts of the same size and type, they can be directly fitted onto the limiting plate 25 for limiting and fixing. Similarly, when limiting bolts, the position of the limiting plate 25 only needs to be adjusted in the opposite direction to limit one end of the bolt, making it easier to grind the nut. By adjusting the limiting in this way, it is not necessary to frequently change different limiting molds or fixtures, which is convenient for operation, greatly improves production efficiency, avoids the problem of positioning errors caused by repeated disassembly and assembly of fixtures, and improves the product qualification rate.
[0026] Figure 1-5 Anti-slip blocks 210 are fixedly installed on both sides of the abutment block 29 shown, with one side of the anti-slip block 210 abutting against one side of the locking block 27. By setting the anti-slip blocks 210, the area on both sides of the abutment block 29 can be increased, making it less prone to shaking after abutting against both sides of the locking block 27, and the locking is more secure.
[0027] Figure 1-5 Bearings 211 are fixedly installed on the outer surfaces of both ends of the connecting rod 26. The outer rings of several bearings 211 are respectively fixedly installed in the inner wall of the locking block 27 and the inner wall of the limiting plate 25. By setting the bearings 211, the rotational wear between the connecting rod 26 and the inner walls of the locking block 27 and the limiting plate 25 can be reduced, making rotation easier and improving the service life of all three. The longitudinal section of the limiting plate 25 near the connecting rod 26 is cross-shaped, and the longitudinal section of the inner wall of the sliding hole 24 is also cross-shaped. By setting the limiting plate 25 and the sliding hole 24 into a cross shape, the two sides of the limiting plate 25 can be limited in the inner wall of the sliding hole 24, making it less prone to shaking when adjusting and sliding back and forth.
[0028] Figure 1-5 The fixing mechanism 22 shown includes a locking rod 221. Both sides of the rectangular block 23 have slots 223. One end of the locking rod 221 passes through one side of the bracket 4 and extends into the mounting hole 21, then inserts into the inner wall of the slot 223. A spring 222 is sleeved on the outer surface of one end of the locking rod 221, and both ends are fixedly installed on one side of the locking rod 221 and one side of the bracket 4, respectively. By setting the fixing mechanism 22, when inserting the rectangular block 23 into the mounting hole 21, the locking rod 221 can be pulled to one end, causing the spring 222 to stretch, allowing the rectangular block 23 to be inserted into the mounting hole 21. Finally, the locking block is released, allowing it to be locked into the slot 223 under the restoring action of the spring 222, thus limiting and fixing the rectangular block 23 for easy installation on the bracket 4. Several circular rollers 224 are rotatably mounted on the side of the locking rod 221 away from the spring 222, and these rollers 224 are arranged at equal intervals. By setting the circular roller 224, the rotational wear between one end of the clamping rod 221 and the rectangular block 23 can be reduced, so that the clamping rod 221 can be pushed and abutted during installation, which facilitates the installation operation.
[0029] Working principle: During the production of bolt fasteners, when the grinding machine 1 grinds the surface of the nut and the bolt head, the rectangular block 23 is first inserted into the mounting hole 21. The clamping rod 221 is pulled to one end, which causes the spring 222 to stretch. Then the rectangular block 23 can be inserted into the mounting hole 21. Finally, the clamping block is released, and it can be locked into the slot 223 under the reset action of the spring 222, thus limiting and fixing the rectangular block 23. It can then be installed on the bracket 4 for convenient use. Depending on the type of fastener, such as a nut, it can be fitted onto the outer surface of two limiting plates 25, with one side abutting against one side of a rectangular block 23. Then, holding the locking block 27, slide it upwards on the rotating rod 28 and several abutment blocks 29 to a certain position. This causes the connecting rod 26 to rotate to a certain angle within the locking block 27 and the inner wall of the limiting plate 25, pushing the two limiting plates 25 to slide in opposite directions within the sliding hole 24, thus supporting and fixing the inner wall of the nut. Then, rotating the rotating rod 28 and the abutment blocks 29 to a certain angle, offsetting the abutment blocks 29 from the inner wall of the locking block 27, and abutting against both sides of the locking block 27 to limit and lock it in place. This fixes the adjusted limiting plate 25. When grinding nuts of the same size and type later, simply fitting them onto the limiting plate 25 will fix them. Similarly, when limiting bolts, simply slide them towards the opposite side... By adjusting the position of the directional limiting plate 25, one end of the bolt can be limited, facilitating the grinding of the nut. This adjustment eliminates the need for frequent replacement of different limiting molds or fixtures, simplifying operation and greatly improving production efficiency. It also avoids the problem of positioning errors caused by repeated disassembly and assembly of fixtures, which could affect product processing accuracy and increase product qualification rate. During grinding, the first electric telescopic rod 3 can be activated to drive the bracket 4 to slide to a certain position within the inner wall of the grinding machine 1, conveying the fixed bolt or nut between the two grinding belts 7. Then, the second electric telescopic rod 8 is activated to drive the abutment plate 9 to move to one end, pushing one side of the grinding belt 7 against the surface of the bolt or nut. Then, the motor 6 is activated to drive the rotating roller 5 to rotate, thereby driving the grinding belt 7 to grind the surface of the nut or bolt / nut until it is smooth.
[0030] It should be noted that the limiting plate 25 can be adjusted and replaced according to the actual clamping requirements. For example, when clamping irregular structures, a deformable rubber sleeve can be set on the surface of the limiting plate 25, and the irregular structure can be clamped by the deformation of the rubber sleeve. When clamping standard parts, different corresponding limiting plates 25 can be replaced according to the standard parts.
[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A bolt fastener edge grinding device, comprising an edge grinding machine (1) and two grinding belts (7), characterized in that: A first electric telescopic rod (3) is fixedly installed on one side of the inner wall of the edge grinding machine (1). A bracket (4) is fixedly installed on the output rod of the first electric telescopic rod (3). One end of the bracket (4) is slidably installed in the inner wall of the edge grinding machine (1). Several rotating rollers (5) are rotatably installed on one side of both ends of the edge grinding machine (1). Motors (6) are fixedly installed on both sides of both ends of the edge grinding machine (1). The output end of the motor (6) is fixedly installed on one side of one of the rotating rollers (5) by means of a coupling. The grinding belt (7) is sleeved on the outside of the several rotating rollers (5). On the surface, the two ends of the grinding machine (1) are fixedly installed with a second electric telescopic rod (8), and the output rod of the second electric telescopic rod (8) is fixedly installed with an abutment plate (9). One side of the abutment plate (9) abuts against one side of the grinding belt (7). One side of the bracket (4) is provided with a limiting device (2). The limiting device (2) can, according to the needs of the object to be limited, put the object on the outer surface of the two limiting plates (25), and limit and fix different objects by adjusting the distance between the two limiting plates (25).
2. The bolt fastener processing edge grinding device as described in claim 1, characterized in that: The limiting device (2) includes a rectangular block (23) and a locking block (27), wherein a mounting hole (21) is provided on one side of the bracket (4), and the rectangular block (23) is inserted into the inner wall of the mounting hole (21). A sliding hole (24) is symmetrically provided on one side of the rectangular block (23). A fixing mechanism (22) is provided between the mounting hole (21) and the rectangular block (23) for fixing and limiting the rectangular block (23) in the mounting hole (21); Two limiting plates (25), one end of each limiting plate (25) is slidably installed in the inner wall of the sliding hole (24), and rubber blocks (212) are fixedly installed on both sides of the limiting plate (25); Two connecting rods (26), the two ends of which are respectively rotatably installed in the inner wall of the locking block (27) and the inner wall of one end of the limiting plate (25); A rotating rod (28) is rotatably mounted on one side of a rectangular block (23). Several abutment blocks (29) are symmetrically fixed on the outer surface of the rotating rod (28). Two opposing abutment blocks (29) abut against the two sides of a locking block (27) on one side, and the rotating rod (28) and the abutment blocks (29) are inserted into the inner wall of the locking block (27).
3. The bolt fastener processing edge grinding device as described in claim 2, characterized in that: Anti-slip blocks (210) are fixedly installed on both sides of the abutment block (29), and one side of the anti-slip block (210) abuts against one side of the card hole block (27).
4. The bolt fastener processing edge grinding device as described in claim 2, characterized in that: Bearings (211) are fixedly installed on the outer surfaces of both ends of the connecting rod (26), and the outer rings of several bearings (211) are respectively fixedly installed in the inner wall of the card block (27) and the inner wall of the limiting plate (25).
5. The bolt fastener processing edge grinding device as described in claim 2, characterized in that: The longitudinal section of the limiting plate (25) near the connecting rod (26) is cross-shaped, and the longitudinal section of the inner wall of the sliding hole (24) is cross-shaped.
6. The bolt fastener processing edge grinding device as described in claim 2, characterized in that: The fixing mechanism (22) includes a locking rod (221), and the rectangular block (23) has a locking groove (223) on both sides. One end of the locking rod (221) passes through one side of the bracket (4) and extends into the mounting hole (21) before being inserted into the inner wall of the locking groove (223). Spring (222), wherein spring (222) is sleeved and installed on the outer surface of one end of the clamp (221), and both ends are fixedly installed on one side of the clamp (221) and one side of the bracket (4).
7. The bolt fastener processing edge grinding device as described in claim 6, characterized in that: A plurality of circular rollers (224) are rotatably mounted on the side of the lever (221) away from the spring (222), and the plurality of circular rollers (224) are arranged at equal intervals.