A fixing device for bolt surface polishing

Abstract

The utility model discloses a kind of fixing devices for bolt surface polishing, it is related to bolt polishing fixing device technical field.The utility model includes: fixed rack, the bottom of fixed rack is equipped with polishing device, polishing device is equipped with multiple polishing end;Placement plate, placement plate is slidably matched in fixed rack, and multiple placement holes are equipped on placement plate;Cover plate, cover plate is slidably and elastically matched in fixed rack, and connecting piece is installed on cover plate, connecting piece is matched with placement plate, and multiple notches are equipped on the downside of cover plate;Wherein, one side of placement plate and cover plate is equipped with driving element, and inner cavity is set in placement plate and cover plate, two sliding blocks are slidably matched in inner cavity, and first connecting rod and second connecting rod are rotatably connected on the two sides of sliding block.The utility model is preliminarily clamped to bolt by clamping rod cooperation placement hole, after cover plate is closed, its notch is adapted bolt, while internal clamping rod auxiliary clamping, form double fixing, reduce the shaking of bolt in polishing process.

Description

Technical Field

[0001] This utility model belongs to the technical field of bolt grinding and fixing devices, specifically, it relates to a fixing device for grinding the surface of bolts. Background Technology

[0002] A bolt, a cylindrical threaded fastener consisting of a head and a threaded shank, is used in conjunction with a nut to secure two parts with through holes. During bolt manufacturing, the threaded shank is annularly cut, inevitably producing burrs on its surface. These burrs, if left untreated, will directly affect the bolt's normal use; therefore, grinding is necessary. A search revealed Chinese patent CN218284938U, which discloses a bolt processing and grinding device. This device includes a base, a motor housing on one side of the base, and a mounting base welded to one end of the motor housing. A motor is secured within the mounting base, and a grinding cylinder is connected to one end of the motor via a key. The grinding cylinder contains grinding discs. An adjusting slide plate is located on the other side of the base, with a vertical support column on the slide plate. A horizontal fixing cylinder is located at the top of the support column, and two clamping plates are symmetrically arranged inside the fixing cylinder. This invention simplifies the bolt installation and disassembly process by symmetrically installing clamping plates that can be simultaneously clamped and released within the fixing cylinder. Furthermore, the adjustable grinding discs can accommodate bolts of different sizes, improving the equipment's efficiency. However, in practical applications, existing bolt processing and grinding equipment has several drawbacks. First, during grinding operations, bolts need to be manually fixed. Under the condition of high-speed machine rotation, bolts are prone to breakage due to unstable clamping, which can easily lead to accidents and pose serious safety hazards. Second, existing equipment can only grind one bolt at a time, which is inefficient for mass production scenarios and cannot meet the needs of large-scale production. In view of this, this utility model is proposed. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a fixing device for grinding the surface of bolts, thus solving the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: A fastening device for grinding bolt surfaces, comprising: A fixed frame, with a grinding device installed at the bottom of the fixed frame, the grinding device having multiple grinding ends; A placement plate is slidably fitted onto a fixed frame, and the placement plate has multiple placement holes. The cover plate slides and is elastically fitted on the fixed frame. Connectors are installed on the cover plate and cooperate with the placement plate. Multiple slots are provided on the lower side of the cover plate. The placement plate and the cover plate are each equipped with a driving component on one side. Both the placement plate and the cover plate have an inner cavity. Two sliders are slidably fitted inside the inner cavity. A first connecting rod and a second connecting rod are rotatably connected to the two sides of the sliders respectively. A clamping rod is rotatably connected between the two first connecting rods and the two second connecting rods. Multiple first springs are connected between the clamping rod and the inner cavity. Both sliders are engaged with the driving component.

[0005] Optionally, the mounting bracket includes a base plate with two side plates mounted on it. The placement plate and cover plate are located between the two side plates, and the grinding device is mounted on the base plate.

[0006] Optionally, grooves are provided on opposite sides of both side plates, and guide blocks are installed on both sides of the placement plate and the cover plate. The guide blocks slide in the grooves, and a second spring is provided between the guide blocks on the placement plate and the guide blocks on the grooves.

[0007] Optionally, a handle is installed on the upper side of the cover plate, and a threaded hole is opened on the upper side of the placement plate. The connecting part includes two lead screws, both of which are rotatably fitted on the cover plate, and the bolts are threadedly engaged with the threaded hole.

[0008] Optionally, the slider is an isosceles trapezoidal block, and the isosceles trapezoidal block has a first end and a second end. The width of the first end is smaller than the width of the second end. The second ends of the two sliders are close to each other. The first link and the second link are rotatably connected to the two inclined sides of the isosceles trapezoidal block, respectively. The first link and the second link form an obtuse angle with the clamping rod, and the two obtuse angles are set opposite to each other.

[0009] Optionally, a chamber is provided on one side of both the placement plate and the cover plate. The driving component includes a knob that is rotatably fitted in the chamber. Two toothed plates are slidably fitted in the chamber. Both toothed plates are engaged with the knob. One end of the knob extends to the outside of the chamber. The two toothed plates are fixedly connected to two sliders.

[0010] Optionally, a support frame can be rotatably fitted to one side of the placement plate.

[0011] Optionally, the support frame includes a connecting frame, with two support legs installed on the lower side of the connecting frame, and two grooves opened on the upper side of the base plate, with the support legs cooperating with the grooves.

[0012] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time: 1. The placement plate initially clamps the bolts using clamping rods and placement holes. After the cover plate is closed, its slots are adapted to the bolts, and the internal clamping rods assist in clamping, forming a double fixation to reduce the shaking of the bolts during the grinding process. 2. The isosceles trapezoidal structure of the slider and the connection method between the first link, the second link, and the clamping rod ensure a uniform distribution of the clamping force on the bolt. Due to the symmetrical structure, the clamping force is consistent in all directions when clamping bolts of different diameters. 3. The placement plate and cover plate slide smoothly and stably through the cooperation of the guide block and the slide groove, which can quickly move the bolt to the grinding end of the grinding device; 4. By rotating the screw on the cover plate, the distance between the cover plate and the placement plate can be adjusted according to the different specifications of the bolts, which is simple and convenient to operate; 5. The support frame on one side of the placement plate supports the plate by engaging the support legs with the grooves when placing bolts, making it convenient for workers to place the bolts. After placement, the support frame can be rotated to detach the support legs from the grooves, facilitating subsequent movement of the placement plate.

[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0014] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings: Figure 1 This is a schematic diagram of the fixed frame structure; Figure 2 This is a schematic diagram of the support frame structure; Figure 3 This is a schematic diagram of the structure for placing the plate and cover plate.

[0015] The attached diagram lists the components represented by each number as follows: 1. Fixing frame, 2. Placement plate, 3. Cover plate, 4. Drive component, 5. Inner cavity, 6. Grinding device, 7. Grinding end, 8. Slider, 9. First connecting rod, 10. Second connecting rod, 11. Clamping rod, 12. Placement hole, 13. Groove, 14. Base plate, 15. Side plate, 16. Slide groove, 17. Guide block, 18. Support frame, 19. Handle, 20. Threaded hole, 21. Lead screw, 22. First spring, 23. Chamber, 24. Knob, 25. Tooth plate, 26. Connecting frame, 27. Support leg.

[0016] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Please see Figure 1-3 As shown, this embodiment provides a fixing device for grinding the surface of bolts, including: A fixing frame 1 is provided, and a grinding device 6 is installed at the bottom of the fixing frame 1. The grinding device 6 is provided with multiple grinding ends 7. Placement plate 2 is slidably fitted on the fixing frame 1, and the placement plate 2 is provided with multiple placement holes 12; Cover plate 3, which slides and elastically fits on the fixed frame 1. Connectors are installed on cover plate 3, which cooperate with the placement plate 2. Multiple slots 13 are provided on the lower side of cover plate 3. Among them, a driving component 4 is installed on one side of both the placement plate 2 and the cover plate 3. An inner cavity 5 is opened in both the placement plate 2 and the cover plate 3. Two sliders 8 are slidably engaged in the inner cavity 5. A first connecting rod 9 and a second connecting rod 10 are rotatably connected to both sides of the sliders 8. A clamping rod 11 is rotatably connected between the two first connecting rods 9 and the two second connecting rods 10. Multiple first springs 22 are connected between the clamping rod 11 and the inner cavity 5. Both sliders 8 are engaged with the driving component 4.

[0019] The bolt to be ground is passed through the placement hole 12 of the placement plate 2. The slider 8 in the inner cavity 5 of the placement plate 2 is driven to slide by the drive component 4. The slider 8 drives the clamping rod 11 to move through the first connecting rod 9 and the second connecting rod 10. The clamping rod 11 is used to cooperate with the placement hole 12 to initially clamp and fix the bolt. The cover plate 3 is slid to fit against the placement plate 2. The cover plate 3 is made to cooperate with the placement plate 2 with the help of the connector. The groove 13 on the lower side of the cover plate 3 is adapted to the bolt. At the same time, the drive component 4 in the cover plate 3 can also drive the clamping rod 11 in its inner cavity 5 to assist in clamping and enhance the stability when fixing the bolt. Then, the connected cover plate 3 and placement plate 2 are moved towards the grinding device 6, and one end of the bolt is moved into the grinding end 7, thereby grinding the surface of the bolt.

[0020] The fixing frame 1 in this embodiment includes a base plate 14, on which two side plates 15 are installed. The placement plate 2 and the cover plate 3 are both located between the two side plates 15. The grinding device 6 is installed on the base plate 14. In this embodiment, the two side plates 15 are provided with sliding grooves 16 on opposite sides. Guide blocks 17 are installed on both sides of the placement plate 2 and the cover plate 3. The guide blocks 17 are slidably engaged in the sliding grooves 16. A second spring is provided between the guide blocks 17 on the placement plate 2 and the guide blocks 17 on the sliding grooves 16.

[0021] Two side plates 15 have grooves 16 on opposite sides, and guide blocks 17 on both sides of the placement plate 2 and the cover plate 3 slide in the grooves 16. When it is necessary to move the position of the placement plate 2 and the cover plate 3, the guide blocks 17 can slide along the grooves 16 to guide the up and down sliding of the placement plate 2 and the cover plate 3, thereby improving the stability and smoothness of the sliding trajectory of the placement plate 2 and the cover plate 3 on the fixed frame 1. A second spring is provided between the guide block 17 on the placement plate 2 and the guide block 17 on the groove 16. When the cover plate 3 is disconnected from the placement plate 2, the cover plate 3 can automatically move away from the placement plate 2 by the elastic force provided by the second spring.

[0022] In this embodiment, a handle 19 is installed on the upper side of the cover plate 3, and a threaded hole 20 is opened on the upper side of the placement plate 2. The connecting parts include two lead screws 21, both of which are rotatably fitted on the cover plate 3, and the bolts are threadedly fitted with the threaded hole 20.

[0023] A handle 19 is installed on the upper side of the cover plate 3. By holding the handle 19, the operator can manually slide the cover plate 3 along the slide groove 16 on the fixing frame 1 towards the placement plate 2. When the cover plate 3 is in contact with the placement plate 2, the screw 21 that is rotatably engaged on the cover plate 3 is rotated. Since the screw 21 is threadedly engaged with the threaded hole 20 on the placement plate 2, the screw 21 will be displaced along the axial direction as it rotates, thereby completing the connection between the cover plate 3 and the placement plate 2. The distance between the cover plate 3 and the placement plate 2 can also be adjusted according to the different specifications of the bolts, and the connection between the cover plate 3 and the placement plate 2 is completed through the screw 21, thus adapting to the clamping requirements of bolts of different specifications and lengths.

[0024] In this embodiment, the slider 8 is an isosceles trapezoidal block, and the isosceles trapezoidal block has a first end and a second end. The width of the first end is smaller than the width of the second end. The second ends of the two sliders 8 are close to each other. The first connecting rod 9 and the second connecting rod 10 are rotatably connected to the two inclined sides of the isosceles trapezoidal block, respectively. The first connecting rod 9 and the second connecting rod 10 form an obtuse angle with the clamping rod 11, and the two obtuse angles are set opposite to each other.

[0025] When the driving component 4 pushes the two sliders 8 to slide along the inner cavity 5, since the first connecting rod 9 and the second connecting rod 10 are rotatably connected to the two inclined sides of the slider, the inclined surfaces will force the first connecting rod 9 and the second connecting rod 10 to swing during the sliding process of the slider 8. The first connecting rod 9 and the second connecting rod 10 are both set at an obtuse angle with the clamping rod 11 and are arranged opposite each other. When the connecting rod swings, this angular relationship will be used to convert the linear motion of the slider 8 into the opening and closing motion of the clamping rod 11. Specifically, the sliding of the slider 8 causes the connecting rod to swing, which in turn pushes the clamping rod 11 to move closer to or away from the bolt (closer to achieve clamping, away from achieve release), and cooperates with the placement hole 12 to clamp and fix the bolt. Due to the symmetrical structure, the clamping force of the clamping rod 11 on the bolt can be uniform.

[0026] In this embodiment, a cavity 23 is provided on one side of both the placement plate 2 and the cover plate 3. The driving component 4 includes a knob 24 that is rotatably engaged in the cavity 23. Two toothed plates 25 are slidably engaged in the cavity 23. Both toothed plates 25 are engaged with the knob 24. One end of the knob 24 extends to the outside of the cavity 23. The two toothed plates 25 are fixedly connected to two sliders 8.

[0027] Both the placement plate 2 and the cover plate 3 have a knob 24 in the cavity 23 on one side. When the knob 24 is rotated, the toothed structure on its surface meshes with two toothed plates 25 that slide in the cavity 23, thereby driving the two toothed plates 25 to slide in opposite directions or towards each other along the cavity 23. The two toothed plates 25 are fixedly connected to two sliders 8 in the cavity 5 of the placement plate 2 and the cover plate 3, respectively. Therefore, the sliding of the toothed plates 25 will directly drive the sliders 8 to slide synchronously in the cavity 23. When the sliders 8 slide, the first connecting rod 9 and the second connecting rod 10 connected to their two sides drive the clamping rod 11 to move: when the two sliders 8 move in opposite directions, the first spring pushes the clamping rod 11 to tighten towards the bolt, thereby clamping the bolt; when the sliders 8 move towards each other, the two connecting rods drive the clamping rod 11 to expand and compress the first spring 22, thereby loosening the bolt.

[0028] In this embodiment, a support frame 18 is rotatably fitted on one side of the placement plate 2; the support frame 18 in this embodiment includes a connecting frame 26, two support legs 27 are installed on the lower side of the connecting frame 26, and two grooves are opened on the upper side of the base plate 14, with the support legs 27 cooperating with the grooves.

[0029] The support frame 18 allows the support leg 27 to engage with the groove and the connecting frame 26 to support the placement plate 2, making it convenient for workers to place the bolts that need to be ground. After the bolts are placed, the support frame 18 can be rotated so that the support leg 27 can be disengaged from the groove, allowing the support plate 2 to move toward the grinding device 6.

[0030] It should be noted that all electrical devices involved in this application can be powered by batteries or external power sources.

[0031] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A fixing device for grinding the surface of bolts, characterized in that, include: A fixed frame (1) is provided with a grinding device (6) at the bottom of the fixed frame (1), and the grinding device (6) is provided with multiple grinding ends (7). Placement plate (2) is slidably fitted on the fixing frame (1), and the placement plate (2) is provided with multiple placement holes (12). Cover plate (3) slides and elastically fits on the fixed frame (1). Connector is installed on cover plate (3) and the connector cooperates with the placement plate (2). Multiple slots (13) are provided on the lower side of cover plate (3). Among them, a drive unit (4) is installed on one side of the placement plate (2) and the cover plate (3). An inner cavity (5) is opened in both the placement plate (2) and the cover plate (3). Two sliders (8) are slidably fitted in the inner cavity (5). A first connecting rod (9) and a second connecting rod (10) are rotatably connected on both sides of the slider (8). A clamping rod (11) is rotatably connected between the two first connecting rods (9) and the two second connecting rods (10). Multiple first springs (22) are connected between the clamping rod (11) and the inner cavity (5). Both sliders (8) are engaged with the drive unit (4).

2. The fixing device for grinding bolt surfaces according to claim 1, characterized in that, The mounting bracket (1) includes a base plate (14), on which two side plates (15) are mounted. The placement plate (2) and the cover plate (3) are both located between the two side plates (15), and the grinding device (6) is mounted on the base plate (14).

3. A fixing device for grinding bolt surfaces according to claim 2, characterized in that, The two side plates (15) are provided with grooves (16) on opposite sides. Guide blocks (17) are installed on both sides of the placement plate (2) and the cover plate (3). The guide blocks (17) slide in the grooves (16). A second spring is provided between the guide blocks (17) on the placement plate (2) and the guide blocks (17) on the grooves (16).

4. A fixing device for grinding bolt surfaces according to claim 1, characterized in that, A handle (19) is installed on the upper side of the cover plate (3), and a threaded hole (20) is opened on the upper side of the placement plate (2). The connecting parts include two screw rods (21), both screw rods (21) are rotatably fitted on the cover plate (3), and the bolts are threadedly fitted with the threaded hole (20).

5. A fixing device for grinding bolt surfaces according to claim 1, characterized in that, The slider (8) is an isosceles trapezoidal block, and the isosceles trapezoidal block has a first end and a second end. The width of the first end is smaller than the width of the second end. The second ends of the two sliders (8) are close to each other. The first connecting rod (9) and the second connecting rod (10) are rotatably connected to the two inclined sides of the isosceles trapezoidal block respectively. The first connecting rod (9) and the second connecting rod (10) form an obtuse angle with the clamping rod (11), and the two obtuse angles are set opposite to each other.

6. A fixing device for grinding bolt surfaces according to claim 1, characterized in that, A chamber (23) is provided on one side of the placement plate (2) and the cover plate (3). The driving component (4) includes a knob (24) that rotates and fits in the chamber (23). There are two toothed plates (25) that slide in the chamber (23). Both toothed plates (25) mesh with the knob (24). One end of the knob (24) extends to the outside of the chamber (23). The two toothed plates (25) are fixedly connected to two sliders (8).

7. A fixing device for grinding bolt surfaces according to claim 2, characterized in that, The placement plate (2) is rotatably fitted with a support frame (18) on one side.

8. A fixing device for grinding bolt surfaces according to claim 7, characterized in that, The support frame (18) includes a connecting frame (26), and two support legs (27) are installed on the lower side of the connecting frame (26). Two grooves are opened on the upper side of the base plate (14), and the support legs (27) cooperate with the grooves.

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