Screw machining surface burr removing device

Abstract

The utility model discloses a screw machining surface burr removing device which abuts against threads of a screw, the burr removing device can be embedded into adjacent threads of the threads under the action of external force, and the burr removing device is driven by the external force to rotate in the spiral direction of the threads. The burr removing device is a soft removing plate, and the soft removing plate can wrap the threads in a surrounding mode in the circumferential direction. A hard groove body wrapping the soft removing plate is formed in the outer wall of the soft removing plate in an embedded mode, the burr removing device can abut against threads of the screw rod and can be embedded into adjacent threads of the threads under the action of external force, burrs on the side walls of the threads can be removed through the external force in the rotating process, and the burr removing efficiency is improved. The abrasion influence on the crest when a steel brush is manually adopted for burr removal at present is avoided. And effective protection can be carried out in the burr removing process through the hard groove body, and the soft removing plate can be rapidly replaced.

Description

Technical Field

[0001] This application relates to the field of screw processing technology, and in particular to a device for removing burrs from the surface of screws. Background Technology

[0002] Screws are key components in many mechanical devices, especially pumps, compressors, and threaded connections. Their primary function is to transmit torque or pressure, thereby ensuring the normal operation of the equipment. The manufacturing quality and precision of the screw have a crucial impact on its performance and service life. Screw machining is similar to bolt machining, involving the machining of external threads on the surface of the rod. Compared to the thread machining of conventional fasteners, screws have a longer axial length.

[0003] Currently, thread processing on screw surfaces is done mechanically, such as thread rolling or machining on a lathe. During this process, the screw surface is subject to cutting. Due to surface wear of the thread rolling wheels and lathe tools, or wear over time, burrs inevitably remain on the threaded surface after machining, as shown in the instruction manual. Figure 2 As shown, if the burrs are not removed, then as Figure 3 As shown, during the later tightening process with the internal thread, the burr will be squeezed between the external thread and the internal thread fastener. Since the internal and external threads are usually tight fit, the burr will cause wear on the surface of the internal and external threads. In addition, during the screw tightening process, the burr is driven to rotate along with the screw, which will cause excessive wear on the surface of the internal and external threads. At the same time, it will also create a certain resistance to the rotation of the screw. Therefore, it is necessary to remove the burr after the thread processing on the screw surface is completed.

[0004] Currently, burrs on the external threads of screws can be removed using a steel brush, which can be inserted between adjacent threads to remove burrs from the sidewalls of the threads. However, under the influence of unstable external forces during the removal process, the tips of the threads are easily worn, such as... Figure 4 As shown, the wear on the tooth tip will affect the later use of the screw. If the removal force is too small, the burrs cannot be completely removed. Summary of the Invention

[0005] To address the aforementioned problems, this application aims to provide a burr removal device for screw machining surfaces, which can be embedded into adjacent threads and remove burrs on the sidewalls of the threads by external force during rotation, thus solving the wear effect on the tooth crest when manually removing burrs with a steel brush.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: a burr removal device for screw machining surface, characterized in that: the burr removal device abuts against the thread of the screw, and under the action of external force, the burr removal device can be embedded into the adjacent thread teeth, and the burr removal device rotates along the helical direction of the thread under the drive of external force.

[0007] Preferably, the burr removal device is a soft removal plate that can circumferentially wrap around the thread.

[0008] Preferably, a hard groove can be nested on the outer wall of the soft removal plate to cover it, and the covering height of the hard groove is less than the thickness of the soft removal plate.

[0009] Preferably, the rigid groove is configured as a hinged openable half structure, and a drive plate is provided on both sides of the rigid groove at the hinge position.

[0010] The beneficial effects of this application are: the deburring device can abut against the thread of the screw, and under the action of external force, it can be embedded into the adjacent thread teeth. During rotation, it can remove burrs on the sidewalls of the thread teeth by external force, solving the problem of wear on the tooth crests caused by manual deburring with steel brushes. Furthermore, the hard groove body provides effective protection during the deburring process and allows for quick replacement of the soft removal plate. Attached Figure Description

[0011] Figure 1 This is a diagram of a screw structure.

[0012] Figure 2 for Figure 1 Enlarged view of the structure at point A (burr).

[0013] Figure 3 This diagram illustrates how burrs are squeezed between the screw and the internal thread during fastening.

[0014] Figure 4 This illustration shows the wear caused to the tooth tip when using a steel brush body for burr removal.

[0015] Figure 5 The illustration shows the soft material removal plate being pressed and filled onto the threads in this application.

[0016] Figure 6 The illustration shows the soft removal plate of this application circumferentially covering the threads.

[0017] Figure 7 This illustration shows how burrs can easily protrude from the outer wall of the soft removal plate when it is pressed down.

[0018] Figure 8 This illustration shows the burrs protruding from the soft removal plate in this application.

[0019] Figure 9 The illustration shows the process of setting up a rigid groove and assembling it with a soft removal plate for this application.

[0020] Figure 10 For this application Figure 9 The diagram shows the assembled ring fitted onto the screw.

[0021] Figure 11 For this application Figure 10 Front view after the ring is attached.

[0022] Figure 12 This diagram illustrates the process of manually pressing a soft deburring plate circumferentially onto the threads to remove burrs, as requested by the applicant.

[0023] In the diagram: 1a - Burrs. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] See attached document Figures 1-11 The diagram illustrates a burr removal device for a screw 1. This burr removal device abuts against the thread 11 of the screw 1. Under external force, the burr removal device can embed into adjacent threads of the thread 11, and it rotates along the helical direction of the thread 11 under the drive of the external force. During operation, the burr removal device is brought into contact with the thread surface, and... Figure 5 The burr removal device is pressed down so that it can be embedded between adjacent threads, and then rotated along the thread direction to remove burrs on the sidewall of the thread by external force, thus solving the problem of wear on the tooth tip when manually removing burrs with a steel brush.

[0026] Specifically, such as Figure 5-6 As shown, the burr removal device is a soft removal plate 2 (such as a foamed mesh or a sponge with a certain strength), which can circumferentially wrap around the thread 11. Figure 6 As shown, during the deburring operation, the soft deburring plate 2 is circumferentially wrapped around the thread, and the soft deburring plate 2 is pressed down (in practice, the soft deburring plate 2 can be held by hand and a gripping force can be applied) so that it can be embedded into the adjacent thread, as shown. Figure 5 As shown, the screw is then rotated or the soft material removal plate 2 is rotated. Figure 7As shown, when the soft removal plate 2 is pressed down, the burrs on the thread surface are embedded in the soft removal plate 2. Then, under the action of rotation, the burrs can be driven to detach from the thread surface, realizing the burr removal operation. Under the action of circumferential envelopment, the burrs in the thread can be completely removed. Since the soft removal plate 2 is a soft structure, it can avoid wear on the tip of the thread compared to a steel brush body, thus ensuring the integrity of the thread in the burr removal process.

[0027] During the aforementioned burr removal operation, since the burrs become embedded in the soft removal plate 2, and the soft removal plate 2 needs to be pressed down to fill the adjacent threads, the burrs embedded in the soft removal plate 2 will protrude from the outer wall of the soft removal plate 2, such as... Figure 7-8 As shown, this can cause hand scratches when the operator holds it. Therefore, to solve this problem, as... Figure 9-11 As shown, a hard groove 3 can be nested on the outer wall of the soft removal plate 2 to cover it. The soft removal plate 2 can be positioned and embedded in the hard groove 3. Thus, during the burr removal operation, the blocking effect of the side wall of the hard groove 3 can effectively prevent burrs from scratching the palm after passing through the soft removal plate 2.

[0028] In order for the soft material removal plate 2 to be pressed down to a certain height and fill the adjacent threads, such as Figure 9 As shown, the height of the hard groove 3 is less than the thickness of the soft removal plate 2, meaning that the hard groove 3 does not contact the thread surface when the soft removal plate 2 is pressed down, thus allowing the soft removal plate to completely fill the space between adjacent threads.

[0029] To facilitate the installation and pressing of the soft removal plate 2 and the hard groove 3 onto the screw, such as... Figure 9-10 As shown, the rigid groove 3 is configured as a hinged, openable, two-part structure (preferably with a torsion spring at the hinge point to drive the rigid groove 3 to close, not shown in the figure), and drive plates 4 are provided on both sides of the hinged position of the rigid groove 3. During operation, as... Figure 10 As shown, the drive plates 4 on both sides are driven to move closer together, overcoming the force of the torsion spring and opening the hard groove 3 and the soft removal plate 2. In the open state, they can be easily fitted onto the threads of the screw. Then, the force of the torsion spring causes the hard groove 3 and the soft removal plate 2 to close. Under the force of the torsion spring, the hard groove 3 presses the soft removal plate 2 down and fills the adjacent threads. Then, by holding the hard groove 3 and rotating it spirally, the burrs on the threads can be removed. When there are many burrs embedded in the soft removal plate 2, it can be disassembled and replaced.

[0030] The principle of this application is as follows: When performing burr removal operation on the thread surface, the soft removal plate 2 is first nested in the hard groove 3, and then the driving plates 4 on both sides are driven to move closer to each other, overcoming the force of the torsion spring to open the hard groove 3 and the soft removal plate 2. In the open state, it can be easily fitted onto the thread of the screw. Then, the hard groove 3 and the soft removal plate 2 are closed by the force of the torsion spring, and under the force of the torsion spring, the soft removal plate 2 is pressed down and filled into the adjacent thread by the hard groove 3. Then, the hard groove 3 is held and rotated spirally. During the rotation, the burrs are embedded in the soft removal plate 2 and are separated from the thread by the rotation of the soft removal plate 2, thus completing the burr removal operation on the thread.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this application. Various changes and modifications may be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims.

Claims

1. A burr removal device for screw machining surfaces, characterized in that: The burr removal device abuts against the thread (11) of the screw (1). Under the action of external force, the burr removal device can be embedded into the adjacent thread of the thread (11), and the burr removal device rotates along the helical direction of the thread (11) under the drive of external force.

2. The burr removal device according to claim 1, characterized in that: The burr removal device is a soft removal plate (2), which can be circumferentially wrapped around the thread (11).

3. The burr removal device according to claim 2, characterized in that: A hard groove (3) can be nested on the outer wall of the soft removal plate (2) to cover it, and the covering height of the hard groove (3) is less than the thickness of the soft removal plate (2).

4. The burr removal device according to claim 3, characterized in that: The rigid groove (3) is configured as a hinged openable half structure, and a drive plate (4) is provided on both sides of the rigid groove (3) at the hinge position.

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