Cutter and lathe for machining double-lip oil seal

Abstract

The utility model relates to a cutter and a lathe for machining a double-lip oil seal. The tool comprises a base, a tool bar, a tool bit and a tool bit locking element, the cutter bar is connected to the base, the cutter bar is provided with a first cutter head clamping arm and a second cutter head clamping arm which are oppositely arranged, and a cutter head clamping groove is formed between the first cutter head clamping arm and the second cutter head clamping arm; a tool body of the tool bit is clamped in the tool bit clamping groove, and a cutting edge of the tool bit is exposed out of the tool bit clamping groove; a first tool bit fixing hole is formed in the first tool bit clamping arm, a second tool bit fixing hole is formed in the second tool bit clamping arm, and the first tool bit fixing hole and the second tool bit fixing hole are communicated with the tool bit clamping groove; the tool bit locking element penetrates through the first tool bit fixing hole, the tool bit clamping groove and the second tool bit fixing hole, the groove body width of the tool bit clamping groove is controlled by adjusting the locking force, the tool body is locked in the tool bit clamping groove, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical equipment processing, in particular to a tool and a lathe for processing double-lip oil seals. Background Art

[0002] Existing cutting tools are often of conventional design. After the cutter head is fixed on the cutter by screws, the cutting parameters are adjusted to cut along different cutting paths, thereby realizing the processing of various workpieces. However, when facing the cutting requirements of workpieces such as oil seals (for example, to meet waterproof requirements, etc.), it is often necessary to input more cutting parameters, repeatedly disassemble and replace the cutter head, and adjust the cutting angle to cut out qualified oil seals.

[0003] Therefore, when faced with the need to process complex oil seal workpieces such as double-lip oil seals, technicians are required to frequently stop the machine to adjust the cutting angle of the cutter head or the cutting parameters to change the cutting path, and to remove the screws multiple times to replace the corresponding cutter head. This results in low work efficiency and technical problems such as easy damage to the metal fatigue at the cutter head mounting port. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a tool and a lathe for machining double-lip oil seals, which can effectively improve the work efficiency of workpiece cutting and increase the service life of the tool head mounting port.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A tool for processing double-lip oil seals, comprising a base, a tool rod, a tool head and a tool head locking element; the tool rod is connected to the base, and the tool rod is provided with a first tool head clamping arm and a second tool head clamping arm arranged opposite to each other, and a tool head clamping slot is formed between the first tool head clamping arm and the second tool head clamping arm; the tool head comprises a blade and a blade body, the blade body is clamped in the tool head clamping slot, and the blade is exposed from the tool head clamping slot; the first tool head clamping arm is provided with a first tool head fixing hole, and the second tool head clamping arm is provided with a second tool head fixing hole, and the first tool head fixing hole and the second tool head fixing hole are connected to the tool head clamping slot; the tool head locking element passes through the first tool head fixing hole, the tool head clamping slot and the second tool head fixing hole, and controls the slot width of the tool head clamping slot by adjusting the locking force, so as to lock the blade body in the tool head clamping slot.

[0007] Compared with the prior art, the tool described in the present invention first designs a tool head clamp arm to form a corresponding tool head slot, in which the blade of the tool head is clamped and its blade is exposed in the tool head slot. At the same time, the tool head clamp arm is provided with a first tool head fixing hole and a second tool head fixing hole. Then, the tool head locking element is passed through the first tool head fixing hole, the tool head slot and the second tool head fixing hole to control the groove width of the tool head slot by adjusting the locking force, and the blade of the tool head is locked in the tool head slot, thereby avoiding the need to repeatedly remove the screws to replace the tool head, avoiding metal fatigue of the tool head mounting port, extending its service life, and being able to adapt to cutting workpieces with complex cutting requirements (such as double lip oil seals, etc.).

[0008] Furthermore, the first tool bit fixing hole and the second tool bit fixing hole are arranged opposite to each other, so that the tool bit locking element can smoothly pass through the two tool bit fixing holes to perform more stable locking on the tool bit.

[0009] Furthermore, the second tool bit clamping arm is also provided with a positioning groove at the second tool bit fixing hole, the aperture of the positioning groove is larger than the second tool bit fixing hole, and the positioning groove is adapted to the shape and size of the tool bit locking element; when the tool bit locking element locks the tool bit in the tool bit slot, the tool bit locking element is accommodated in the positioning groove to prevent the exposed part of the tool bit locking element from being worn or hit, while reducing the friction with the tool bit clamping arm to avoid metal fatigue or thread slippage.

[0010] Furthermore, the cutter head slot includes a locking groove and a locking groove; the locking groove is arranged at an end of the cutter head slot away from the base, the shape of the locking groove is adapted to the shape of the blade body, and the extension direction of the locking groove forms an angle with the extension direction of the knife rod; the locking groove is arranged at an end of the cutter head slot close to the base, the locking groove is connected to the locking groove, the groove wall of the locking groove is connected to the groove wall of the locking groove, the groove body width of the locking groove is smaller than the locking groove, and the extension direction of the locking groove is consistent with the extension direction of the knife rod; the cutter head locking element passes through the first cutter head fixing hole, the locking groove and the second cutter head fixing hole, and the groove body width of the locking groove is controlled by adjusting the locking force, so as to lock the blade body in the locking groove to achieve better locking control of the cutter head.

[0011] Furthermore, the extending direction of the engaging groove and the extending direction of the locking groove form an angle of 120°, so that when the cutter head is engaged in the engaging groove, it can better extend into and cut the double-lip oil seal.

[0012] Furthermore, the cross-section of the base in the width direction is larger than the cross-section of the tool bar in the width direction, so that the fixing performance can be enhanced when connected to a lathe, thereby preventing the tool from detaching and falling off during cutting.

[0013] Furthermore, an inner chamfer is provided at the connection between the base and the tool rod, so that the stress generated during cutting is dispersed to avoid the tool from breaking.

[0014] Furthermore, the outer side surface of the first tool head clamp arm is arc-shaped; when the blade of the tool head moves along the cutting path, the outer side surface of the first tool head clamp arm is attached to one side of the cutting path, so as to avoid scratching or damaging the double lip oil seal during the cutting process, causing it to lose its waterproof performance.

[0015] Furthermore, a bending auxiliary through hole is provided at one end of the cutter head slot near the base, and the extending direction of the bending auxiliary through hole is perpendicular to the extending direction of the cutter rod, so as to improve the bending performance of the cutter head clamp arm and assist in adjusting the slot width of the cutter head slot, so that the cutter head can be better locked in the cutter head slot.

[0016] A lathe comprises a bed, a clamping device and a feeding device arranged on the bed, and any of the above-mentioned tools for machining double-lip oil seals, wherein the tool for machining double-lip oil seals is movably arranged above the clamping device through the feeding device.

[0017] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a tool for machining a double-lip oil seal according to the utility model;

[0019] Figure 2 An exploded view of a tool for machining a double-lip oil seal according to the utility model;

[0020] Figure 3 It is a front view of a tool for machining a double-lip oil seal according to the utility model;

[0021] Figure 4 It is a side view of a tool for machining a double-lip oil seal according to the utility model;

[0022] Figure 5 The utility model is a bottom view of a tool for machining a double-lip oil seal. DETAILED DESCRIPTION

[0023] The utility model provides a tool and a lathe for machining a double-lip oil seal. To make the purpose, technical scheme and effect of the utility model clearer and more specific, the utility model is further described in detail below with reference to the accompanying drawings and examples.

[0024] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of ordinary technicians in the field to which the utility model belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as the meaning in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0025] The utility model is further illustrated by describing embodiments below in conjunction with the accompanying drawings.

[0026] Example 1

[0027] like Figure 1 and Figure 2 As shown, this embodiment provides a tool and a lathe for machining double-lip oil seals. The lathe comprises a bed, a clamping device, a feeding device and the tool. The clamping device is arranged on the bed; the feeding device is arranged on the bed; the tool is connected to the feeding device, and the tool is movably arranged above the clamping device through the feeding device.

[0028] The tool includes a base 10 for fixedly connecting to a lathe, a tool rod 20 connected to the base 10, a tool head 30 arranged on the tool rod 20, and a plurality of tool head locking elements. The base 10 and the tool rod 20 can be integrally formed or assembled and connected to each other. The tool is made of aluminum alloy throughout, and can also be made of other alloys or composite materials that meet the hardness and cutting requirements. The overall shape of the tool is a cylinder, so that it is convenient to perform cutting tasks according to a preset cutting path. Of course, it can also be other geometric shapes that meet the requirements of the lathe and processing requirements. Therefore, the tool can effectively improve the work efficiency of workpiece cutting and increase the service life of the tool head mounting port.

[0029] like Figure 2As shown, the base 10 is used to connect the tool to a lathe that performs a cutting task. The base 10 can be made of metal (aluminum alloy, etc.) or a composite material that meets the requirements. The shape of the base 10 does not need to be limited, and it only needs to be installed and connected to the lathe. In one embodiment, the base 10 is in the shape of a cylinder. In other alternative embodiments, it can also be a hexagonal cylinder to increase the friction force to enhance the stability of the connection with the lathe. The cross-section of the base 10 in the width direction is larger than the cross-section of the tool bar 20 in the width direction, so that it can extend into the workpiece for cutting when performing cutting processing. At the same time, when the base 10 is connected to the lathe, it can enhance the fixing performance to prevent the tool from detaching and falling off during cutting.

[0030] One end of the base 10 is connected to the feeding device of the lathe, and the other end of the base 10 is connected to the tool bar 20, wherein the specific connection method of the connection can be connected by screws and studs adapted thereto, or by a snap-fit ​​structure or interference design. An inner chamfer 101 is provided at the connection between the base 10 and the tool bar 20 to reduce stress concentration and avoid tool breakage.

[0031] like Figure 5 As shown, the cutter head 30 is used to be installed on the cutter bar 20 and perform cutting tasks according to a preset cutting path. The cutter head 30 is a PCD cutter head, and can also be a cutter head made of other materials that meet the cutting requirements. The cutter head 30 is a rectangular parallelepiped as a whole, and the cutter head 30 includes a blade 301 and a blade body 302. The blade 301 is not limited to the outer edge formed by any adjacent surface of the cutter head 30, and only needs to meet the function of being able to perform cutting tasks.

[0032] like Figure 3 and Figure 4 As shown, the tool bar 20 is used to connect the base 10 and to set and fix the tool head 30 to perform cutting tasks according to a preset cutting path. The tool bar 20 can be made of metal (aluminum alloy, etc.) or a composite material that meets the requirements.

[0033] The tool bar 20 is fixedly connected to one end of the base 10; the tool bar 20 is provided with a first tool head clamping arm 201 and a second tool head clamping arm 202 which are arranged opposite to each other, and the first tool head clamping arm 201 and the second tool head clamping arm 202 can be made of metal or other composite materials that meet the requirements; the outer side surface 2011 of the first tool head clamping arm 201 is arc-shaped; when the blade 301 of the tool head 30 moves along the cutting path, the outer side surface 2011 of the first tool head clamping arm 201 is attached to one side of the cutting path. Avoid scratching or damaging the double lip oil seal during the cutting process, causing it to lose its waterproof performance.

[0034] A tool head slot 203 is formed between the first tool head clamp arm 201 and the second tool head clamp arm 202; the tool head slot 203 is used to clamp the blade 302 of the tool head 30, and the blade 301 of the tool head 30 is exposed in the tool head slot 203; the tool head slot 203 can be obtained by performing a processing of cutting or hollowing out the first tool head clamp arm 201 and the second tool head clamp arm 202 on the tool rod 20, or a plurality of assembling components that meet the material requirements can be assembled to obtain the tool rod 20, and the tool rod 20 has a corresponding groove space as the tool head slot 203. At the same time, combined with the common knowledge in the field, the tool rod 20 obtained by the above two obtaining methods can be provided with a first tool head clamp arm 201 and a second tool head clamp arm 202 that are relatively arranged, without being affected by the processing method of the tool rod 20.

[0035] At the same time, a first tool bit fixing hole 204 is provided on the first tool bit clamp arm 201, and a second tool bit fixing hole 205 is provided on the second tool bit clamp arm 202. The first tool bit fixing hole 204 and the second tool bit fixing hole 205 can be obtained by punching the first tool bit clamp arm 201 and the second tool bit clamp arm 202 respectively; the first tool bit fixing hole 204 and the second tool bit fixing hole 205 are connected to the tool bit slot 203. In one embodiment, the first tool bit fixing hole 204 and the second tool bit fixing hole 205 are arranged relatively to each other.

[0036] like Figure 1 As shown, the tool head locking element (not shown in the figure) is used to lock the tool head 30 in the tool head slot 203. The tool head locking element can be a screw and a nut matched therewith, or a clamp with a tensioning mechanism, and it only needs to satisfy the function of being able to apply directional pressure. Specifically, the tool head locking element passes through the first tool head fixing hole 204, the tool head slot 203 and the second tool head fixing hole 205, and by adjusting the locking force, the first tool head clamp arm 201 and the second tool head clamp arm 202 are moved closer to or away from each other, the slot width of the tool head slot 203 is controlled, and the blade body 302 is locked in the tool head slot 203.

[0037] In addition, in one embodiment, a bending auxiliary through hole 207 is provided at one end of the tool bit slot 203 close to the base 10, and the extension direction of the bending auxiliary through hole 207 is perpendicular to the extension direction of the tool rod 20, so as to improve the bending performance of the first tool bit clamping arm 201 and the second tool bit clamping arm 202, and assist in adjusting the slot width of the tool bit slot 203, so that the tool bit 30 can pass through the tool bit locking element and be better locked in the tool bit slot 203.

[0038] In addition, in one embodiment, the second tool bit clamping arm 202 is further provided with a positioning groove 206 at the second tool bit fixing hole 205, and the aperture of the positioning groove 206 is larger than the second tool bit fixing hole 205, and the positioning groove 206 is adapted to the shape and size of the tool bit locking element; when the tool bit locking element locks the tool bit in the tool bit slot 203, the tool bit locking element is accommodated in the positioning groove 206 to prevent the exposed part of the tool bit locking element from being worn or hit, while reducing the friction with the tool bit clamping arm to avoid metal fatigue or thread slippage.

[0039] In addition, in one embodiment, the blade slot 203 includes a snap-fit ​​groove 2031 and a locking groove 2032; the snap-fit ​​groove 2031 is arranged at one end of the blade slot 203 away from the base 10, the shape of the snap-fit ​​groove 2031 is adapted to the shape of the blade body 302, and the extending direction of the snap-fit ​​groove 2031 forms an angle with the extending direction of the blade rod 20. In one embodiment, the extending direction of the snap-fit ​​groove 2031 and the extending direction of the locking groove 2032 form an angle of 120°. So that when the cutter head is clamped in the clamping groove 2031, it can better extend into the oil seal workpiece and cut and process to make a double-lip oil seal; the locking groove 2032 is arranged at one end of the cutter head clamping groove 203 close to the base 10, and the locking groove 2032 is connected to the clamping groove 2031, and the groove wall of the locking groove 2032 is connected to the groove wall of the clamping groove 2031, the groove body width of the locking groove 2032 is smaller than the clamping groove 2031, and the extension direction of the locking groove 2032 is consistent with the extension direction of the tool rod 20.

[0040] Specifically, the tool bit locking element passes through the first tool bit fixing hole 204, the locking groove 2032 and the second tool bit fixing hole 205, and controls the width of the locking groove 2032 by adjusting the locking force. Since the groove wall of the locking groove 2032 is connected to the groove wall of the engaging groove 2031, the groove width of the engaging groove 2031 is affected, thereby locking the blade 302 in the engaging groove 2031.

[0041] The working principle of the tool for machining double-lip oil seals described in the utility model when used in a lathe is as follows:

[0042] The tool is connected to the feeding device of the lathe, and the oil seal workpiece to be processed is clamped on the clamping device of the lathe. The feeding device controls the tool head clamped on the tool to move to the preset cutting starting point of the oil seal workpiece; the clamping device is controlled to rotate, and the tool head synchronously cuts the oil seal workpiece clamped on the clamping device according to the preset cutting path.

[0043] Compared with the prior art, the utility model designs a cutter head installation method different from the prior art. While maintaining a certain locking force to meet the cutting requirements, it can well avoid metal fatigue at the cutter head installation port that affects its service life, and is suitable for processing a variety of workpieces with complex cutting requirements. At the same time, through the design of the angle and the outer side of the clamp arm, the tool described in the utility model can better cut and process double-lip oil seals. Finally, after making appropriate deformation, it can also be applied to different lathes. It has the advantages of strong universality, simple structure, stable connection and easy installation.

[0044] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A tool for machining double lip oil seals, characterized in that: The utility model comprises a base, a knife bar, a knife head and a knife head locking element; the knife bar is connected to the base, the knife bar is provided with a first knife head clamping arm and a second knife head clamping arm which are arranged opposite to each other, and a knife head clamping groove is formed between the first knife head clamping arm and the second knife head clamping arm; the knife head comprises a blade and a blade body, the blade body is clamped in the blade head clamping groove, and the blade is exposed from the blade head clamping groove; The first tool bit clamp arm is provided with a first tool bit fixing hole, the second tool bit clamp arm is provided with a second tool bit fixing hole, and the first tool bit fixing hole and the second tool bit fixing hole are connected to the tool bit slot; the tool bit locking element passes through the first tool bit fixing hole, the tool bit slot and the second tool bit fixing hole, and controls the slot width of the tool bit slot by adjusting the locking force, so as to lock the blade in the tool bit slot.

2. The tool for machining double-lip oil seal according to claim 1, characterized in that: The first tool head fixing hole and the second tool head fixing hole are arranged opposite to each other.

3. The tool for machining double-lip oil seal according to claim 1, characterized in that: The second tool bit clamping arm is also provided with a positioning groove at the second tool bit fixing hole. The aperture of the positioning groove is larger than that of the second tool bit fixing hole, and the positioning groove is adapted to the shape and size of the tool bit locking element. When the tool bit locking element locks the tool bit in the tool bit slot, the tool bit locking element is accommodated in the positioning groove.

4. The tool for machining double-lip oil seal according to claim 1, characterized in that: The cutter head slot includes a snap-fit ​​slot and a locking slot; The engaging groove is arranged at one end of the cutter head engaging groove away from the base, the shape of the engaging groove is adapted to the shape of the cutter body, and the extending direction of the engaging groove forms an angle with the extending direction of the cutter bar; The locking groove is arranged at one end of the cutter head slot close to the base, the locking groove is connected to the engaging groove, the groove wall of the locking groove is connected to the groove wall of the engaging groove, the groove body width of the locking groove is smaller than the engaging groove, and the extending direction of the locking groove is consistent with the extending direction of the cutter bar; The tool head locking element passes through the first tool head fixing hole, the locking groove and the second tool head fixing hole, and the tool body is locked in the locking groove by adjusting the locking force to control the groove width of the engaging groove.

5. The tool for machining double-lip oil seal according to claim 4, characterized in that: The extending direction of the engaging groove and the extending direction of the locking groove form an angle of 120°.

6. The tool for machining double-lip oil seal according to claim 1, characterized in that: The cross section of the base in the width direction is larger than the cross section of the knife bar in the width direction.

7. The tool for machining double-lip oil seals according to claim 6, characterized in that: An inner chamfer is provided at a connection between the base and the knife rod.

8. The tool for machining a double-lip oil seal according to any one of claims 1 to 7, characterized in that: The outer side surface of the first tool head clamp arm is arc-shaped; when the blade of the tool head moves along the cutting path, the outer side surface of the first tool head clamp arm is in contact with one side of the cutting path.

9. The tool for machining a double-lip oil seal according to any one of claims 1 to 7, characterized in that: An auxiliary bending through hole is provided at one end of the cutter head slot close to the base, and the extending direction of the auxiliary bending through hole is perpendicular to the extending direction of the cutter rod.

10. A lathe, characterized in that: include: A bed, a clamping device and a feeding device arranged on the bed, and a tool for processing a double-lip oil seal as described in any one of claims 1 to 9, wherein the tool for processing a double-lip oil seal is movably arranged above the clamping device through the feeding device.

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