Numerical control cutter lifting buffer device

Abstract

The utility model relates to the technical field of numerical control, in particular to a numerical control cutter lifting buffer device which comprises a mounting sleeve, a connecting sleeve and a cutter and further comprises a buffer assembly, and the buffer assembly comprises a connecting column, a mounting plate, a buffer spring, a damper, a directional frame, a sliding ring, a connecting support and a fixing component. The mounting plate is fixedly connected with the connecting column, the buffer spring is connected with the mounting plate and the connecting sleeve through fixing components, the damper is arranged between the mounting plate and the connecting sleeve, the directional frame is fixedly connected with the mounting sleeve, the sliding ring is slidably connected with the directional frame and the connecting column, and the connecting support is fixedly connected with the sliding ring and fixedly connected with the connecting sleeve. The fixing component is arranged on the mounting plate and the connecting sleeve and connected with the buffer spring, vibration is buffered through the buffer spring, vibration caused in the cutter lifting process is absorbed through the damper, and then the situation that the cutter head is broken due to vibration is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control, in particular to a numerical control tool lifting buffer device. Background Technique

[0002] Numerical control machining refers to a process method of machining parts on a numerical control machine tool. Numerical control machine tools are widely used in industrial production. However, due to abnormal working conditions such as tool collision, spindle collision, and tool breakage often occurring during the machining process of numerical control machine tools, these abnormal working conditions cause economic losses and efficiency losses to manufacturers.

[0003] Existing numerical control machine tools often add a load tool lifting program later to protect the safety of the machine tool. To meet the protection requirements of the machine tool, the additional safety measurement and control program needs to accurately detect abnormal working conditions.

[0004] However, when numerical control machine tools process different parts, the cutting working conditions vary greatly. In some working conditions, since the tool has not completely left the surface of the part during the tool lifting action, the tool often rubs against the surface of the part, resulting in vibration of the tool, and thus it is easy to cause the tool tip to break. Content of the Utility Model

[0005] The purpose of the utility model is to provide a numerical control tool lifting buffer device, aiming to solve the problem that when numerical control machine tools process different parts, the cutting working conditions vary greatly. In some working conditions, since the tool has not completely left the surface of the part during the tool lifting action, the tool often rubs against the surface of the part, resulting in vibration of the tool, and thus it is easy to cause the tool tip to break.

[0006] To achieve the above purpose, the utility model provides a numerical control tool lifting buffer device, which includes a mounting sleeve, a connecting sleeve and a tool. The connecting sleeve is located on one side of the mounting sleeve, and the tool is arranged on the connecting sleeve and is located on one side of the connecting sleeve.

[0007] It further includes a buffer assembly.

[0008] The buffer assembly includes a connecting column, a mounting plate, a buffer spring, a damper, a guiding frame, a sliding ring, a connecting bracket, and a fixing member. The connecting column is fixedly connected to the mounting sleeve and is located on one side of the mounting sleeve. The mounting plate is fixedly connected to the connecting column and is located on the side of the connecting column away from the mounting sleeve. The buffer spring is connected to the mounting plate and the connecting sleeve respectively through the fixing member. The buffer spring is located on the side of the mounting plate close to the connecting sleeve. The damper is arranged between the mounting plate and the connecting sleeve. The guiding frame is fixedly connected to the mounting sleeve and is located on the side of the mounting sleeve close to the connecting column. The sliding ring is slidably connected to the guiding frame and the connecting column respectively and is located on the side of the guiding frame close to the connecting column. The connecting bracket is fixedly connected to the sliding ring and is fixedly connected to the connecting sleeve and is located on the side of the sliding ring close to the connecting sleeve. The fixing member is arranged on the mounting plate and the connecting sleeve and is connected to the buffer spring.

[0009] Wherein, the fixing member includes a first fixing seat and a second fixing seat. The first fixing seat is fixedly connected to the mounting plate and the buffer spring respectively. The first fixing seat is located on the side of the mounting plate close to the buffer spring. The second fixing seat is fixedly connected to the connecting sleeve and the buffer spring respectively. The second fixing seat is located on the side of the connecting sleeve close to the buffer spring.

[0010] Wherein, the buffer assembly further includes a connecting cylinder and a sliding cylinder. The connecting cylinder is fixedly connected to the connecting sleeve and is located on one side of the connecting sleeve. The sliding cylinder is slidably connected to the connecting cylinder and is fixedly connected to the mounting plate and is located on the side of the connecting cylinder close to the mounting plate.

[0011] Wherein, the guiding frame has a first protrusion, and the mounting plate has a second protrusion. The first protrusion is located on the side of the guiding frame close to the sliding ring. The second protrusion is located on the side of the mounting plate close to the sliding ring.

[0012] Wherein, the buffer assembly further includes an auxiliary member. The auxiliary member includes a fixing frame and a buffer pad. The fixing frame is fixedly connected to the connecting sleeve and is located on one side of the connecting sleeve. The buffer pad is fixedly connected to the fixing frame and is located on the side of the fixing frame close to the tool.

[0013] A numerical control tool-lifting buffer device of the present utility model can be externally installed in a machine tool through the installation sleeve. The machine tool can drive the tool on the connecting sleeve to perform rotary cutting operations. During the tool-lifting process in numerical control operations, when the tool-lifting action causes the tool to rub against the surface of the part because the tool has not completely left the surface of the part, vibrations are generated. The vibrations are transmitted through the tool to multiple buffer springs on the connecting sleeve. The buffer springs can buffer the received vibrations through their deformation ability. At the same time, the damper between the connecting sleeve and the mounting plate absorbs the received vibrations. Thus, the buffer springs buffer the vibrations and the damper absorbs the vibrations caused during the tool-lifting process, thereby avoiding the tool tip from breaking due to vibrations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0015] Figure 1 It is a schematic structural diagram of a numerical control tool-lifting buffer device according to the first embodiment of the present utility model.

[0016] Figure 2 It is a schematic structural diagram of a buffer assembly according to the first embodiment of the present utility model.

[0017] Figure 3 It is a schematic structural diagram of a numerical control tool-lifting buffer device according to the second embodiment of the present utility model.

[0018] Figure 4 It is a schematic structural diagram of an auxiliary component according to the second embodiment of the present utility model.

[0019] In the figure: 101 - installation sleeve, 102 - connecting sleeve, 103 - tool, 104 - connecting column, 105 - mounting plate, 106 - buffer spring, 107 - damper, 108 - orientation frame, 109 - sliding ring, 110 - connecting bracket, 111 - connecting cylinder, 112 - sliding cylinder, 113 - first fixing seat, 114 - second fixing seat, 115 - first protrusion, 116 - second protrusion, 201 - fixing frame, 202 - buffer pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation of the present utility model.

[0021] The first embodiment of the present application is as follows:

[0022] Please refer to Figure 1 andFigure 2 , wherein Figure 1 is a schematic structural view of the numerically controlled tool-lifting buffer device according to the first embodiment of the present utility model. Figure 2 is a schematic structural view of the buffer assembly according to the first embodiment of the present utility model.

[0023] The present utility model provides a numerically controlled tool-lifting buffer device, which includes a mounting sleeve 101, a connecting sleeve 102, a tool 103 and a buffer assembly. The buffer assembly includes a connecting column 104, a mounting plate 105, a buffer spring 106, a damper 107, an orienting frame 108, a sliding ring 109, a connecting bracket 110, a fixing member, a connecting cylinder 111 and a sliding cylinder 112. The fixing member includes a first fixing seat 113 and a second fixing seat 114. The orienting frame 108 has a first protrusion 115, and the mounting plate 105 has a second protrusion 116. Through the foregoing solution, when the numerically controlled machine tool processes different parts, the cutting working conditions vary greatly. In some working conditions, since the tool has not completely left the surface of the part during the tool-lifting action, the tool often rubs against the surface of the part, resulting in vibration of the tool, and further easily causing the tool tip to break. It can be understood that the foregoing solution can be used to avoid the vibration and breakage of the tool tip.

[0024] In this embodiment, the connecting sleeve 102 is located below the mounting sleeve 101, and the tool 103 is installed on the connecting sleeve 102. The mounting sleeve 101 can be externally connected and installed in the machine tool, and the machine tool can drive the tool 103 on the mounting sleeve 101 and the connecting sleeve 102 to perform rotary cutting operations.

[0025] Among them, the connecting column 104 is fixedly connected to the mounting sleeve 101 and is located on one side of the mounting sleeve 101. The mounting plate 105 is fixedly connected to the connecting column 104 and is located on the side of the connecting column 104 away from the mounting sleeve 101. The buffer spring 106 is connected to the mounting plate 105 and the connecting sleeve 102 respectively through the fixing member. The buffer spring 106 is located on the side of the mounting plate 105 close to the connecting sleeve 102. The damper 107 is arranged between the mounting plate 105 and the connecting sleeve 102. The orientation frame 108 is fixedly connected to the mounting sleeve 101 and is located on the side of the mounting sleeve 101 close to the connecting column 104. The sliding ring 109 is slidably connected to the orientation frame 108 and the connecting column 104 respectively and is located on the side of the orientation frame 108 close to the connecting column 104. The connecting bracket 110 is fixedly connected to the sliding ring 109 and is fixedly connected to the connecting sleeve 102 and is located on the side of the sliding ring 109 close to the connecting sleeve 102. The fixing member is arranged on the mounting plate 105 and the connecting sleeve 102 and is connected to the buffer spring 106. The connecting column 104 is welded below the mounting sleeve 101. The mounting plate 105 is welded below the connecting column 104. Through the connecting column 104, the mounting plate 105 can be connected and fixed below the mounting sleeve 101. There are multiple buffer springs 106. The multiple buffer springs 106 are connected between the mounting plate 105 and the connecting sleeve 102 through the fixing member. Through the deformation ability of the buffer spring 106, the vibration received can be buffered. The damper 107 is arranged between the connecting sleeve 102 and the mounting plate 105. Through the damper 107, the vibration received can be absorbed. The orientation frame 108 is welded on the mounting sleeve 101. The sliding ring 109 is slidably connected between the orientation frame 108 and the connecting column 104. Through the orientation frame 108 and the connecting column 104, the sliding of the sliding ring 109 can be directionally limited. The connecting bracket 110 is welded on the sliding ring 109 and the connecting sleeve 102. Thus, through the sliding of the sliding ring 109, the movement of the connecting sleeve 102 can be connected, supported and directionally limited. Thus, it is realized that the mounting sleeve 101 can be externally mounted in the machine tool. Through the machine tool, the tool 103 on the connecting sleeve 102 can be driven to perform rotary cutting operations. When the tool is lifted during numerical control operations, during the tool lifting action, since the tool 103 has not completely left the surface of the part, the tool 103 rubs against the surface of the part and generates vibration. The vibration is transmitted to the multiple buffer springs 106 on the connecting sleeve 102 through the tool 103. Through the deformation ability of the buffer spring 106, the received vibration can be buffered.Meanwhile, the damper 107 between the connecting sleeve 102 and the mounting plate 105 absorbs the vibration received, so that the vibration is buffered by the buffer spring 106 and the vibration caused during the tool lifting process is absorbed by the damper 107, thereby avoiding the fracture of the tool head caused by vibration.

[0026] Secondly, the first fixing seat 113 is fixedly connected to the mounting plate 105 and the buffer spring 106 respectively, and the first fixing seat 113 is located on the side of the mounting plate 105 close to the buffer spring 106; the second fixing seat 114 is fixedly connected to the connecting sleeve 102 and the buffer spring 106 respectively, and the second fixing seat 114 is located on the side of the connecting sleeve 102 close to the buffer spring 106. There are multiple first fixing seats 113, and multiple first fixing seats 113 are welded to one end of the mounting plate 105 and the corresponding multiple buffer springs 106. Through the first fixing seat 113, one end of the buffer spring 106 can be connected and fixed to the mounting plate 105. There are multiple second fixing seats 114, and multiple second fixing seats 114 are welded to the connecting sleeve 102 and the other ends of the corresponding multiple buffer springs 106. Through the second fixing seat 114, the other end of the buffer spring 106 can be connected and fixed to the connecting sleeve 102.

[0027] Meanwhile, the connecting cylinder 111 is fixedly connected to the connecting sleeve 102 and is located on one side of the connecting sleeve 102; the sliding cylinder 112 is slidably connected to the connecting cylinder 111 and is fixedly connected to the mounting plate 105 and is located on the side of the connecting cylinder 111 close to the mounting plate 105. There are multiple connecting cylinders 111, and multiple connecting cylinders 111 are welded to the connecting sleeve 102. There are multiple sliding cylinders 112, and multiple sliding cylinders 112 are slidably connected in the corresponding multiple connecting cylinders 111. At the same time, the sliding cylinder 112 is welded to the mounting plate 105. The sliding of the sliding cylinder 112 in the connecting cylinder 111 limits the up and down movement between the mounting sleeve 101 on the connecting column 104 and the connecting sleeve 102, so that the mounting sleeve 101 can better drive the tool 103 on the connecting sleeve 102 to rotate and cut.

[0028] Finally, the first protrusion 115 is located on the side of the orientation frame 108 close to the sliding ring 109; the second protrusion 116 is located on the side of the mounting plate 105 close to the sliding ring 109. The first protrusion 115 is in the direction of the positioning frame close to the sliding ring 109, and the second protrusion 116 is in the direction of the mounting plate 105 close to the sliding ring 109. The sliding ring 109 sliding between the connecting column 104 and the orientation frame 108 can be blocked by the first protrusion 115 and the second protrusion 116, so as to prevent the sliding ring 109 from coming out during the sliding process between the connecting column 104 and the orientation frame 108.

[0029] When using a numerical control tool-lifting buffer device according to this embodiment, it can be externally installed in a machine tool through the mounting sleeve 101. The machine tool can drive the tool 103 on the connecting sleeve 102 to perform rotary cutting operations. When lifting the tool during numerical control operations, the tool-lifting action causes vibration due to the tool 103 not completely leaving the surface of the part, and the vibration is transmitted to the plurality of buffer springs 106 on the connecting sleeve 102 through the tool 103. The vibration received can be buffered by the deformation ability of the buffer springs 106. At the same time, the damper 107 between the connecting sleeve 102 and the mounting plate 105 absorbs the received vibration. Thus, the vibration is buffered by the buffer springs 106 and the vibration caused during the tool-lifting process is absorbed by the damper 107, thereby avoiding the tool tip from breaking due to vibration.

[0030] The second embodiment of the present application is as follows:

[0031] Based on the first embodiment, please refer to Figure 3 and Figure 4 , Figure 3 which is a schematic structural diagram of the numerical control tool-lifting buffer device of the second embodiment of the present utility model, Figure 4 and which is a schematic structural diagram of the auxiliary component of the second embodiment of the present utility model.

[0032] The numerical control tool-lifting buffer device provided by the present utility model further includes an auxiliary component, and the auxiliary component includes a fixed frame 201 and a buffer pad 202.

[0033] The fixing bracket 201 is fixedly connected to the connecting sleeve 102 and is located on one side of the connecting sleeve 102; the buffer pad 202 is fixedly connected to the fixing bracket 201 and is located on the side of the fixing bracket 201 close to the cutting tool 103. The fixing bracket 201 is welded to the connecting sleeve 102, and the connection and support of the fixing bracket 201 are realized through the connecting sleeve 102. The buffer pad 202 is bonded in the fixing bracket 201, and the connection and support of the buffer pad 202 are realized through the fixing bracket 201. Since the buffer pad 202 is made of deformable rubber material, the buffer pad 202 can buffer the swinging of the cutting tool 103 in all directions, thereby better avoiding the damage to the cutting tool 103 caused by the vibration generated during the tool lifting process.

[0034] The above-disclosed are only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A numerical control tool lifting buffer device, comprising a mounting sleeve, a connecting sleeve and a tool. The connecting sleeve is located on one side of the mounting sleeve, and the tool is arranged on the connecting sleeve and located on one side of the connecting sleeve. It is characterized in that, it further comprises a buffer assembly, The buffer assembly includes a connecting column, a mounting plate, a buffer spring, a damper, a guiding frame, a sliding ring, a connecting bracket and a fixing member. The connecting column is fixedly connected to the mounting sleeve and is located on one side of the mounting sleeve. The mounting plate is fixedly connected to the connecting column and is located on the side of the connecting column away from the mounting sleeve. The buffer spring is respectively connected to the mounting plate and the connecting sleeve through the fixing member. The buffer spring is located on the side of the mounting plate close to the connecting sleeve. The damper is arranged between the mounting plate and the connecting sleeve. The guiding frame is fixedly connected to the mounting sleeve and is located on the side of the mounting sleeve close to the connecting column. The sliding ring is respectively slidably connected to the guiding frame and the connecting column and is located on the side of the guiding frame close to the connecting column. The connecting bracket is fixedly connected to the sliding ring and is fixedly connected to the connecting sleeve and is located on the side of the sliding ring close to the connecting sleeve. The fixing member is arranged on the mounting plate and the connecting sleeve and is connected to the buffer spring.

2. The numerical control tool lifting buffer device according to claim 1, characterized in that, The fixing member includes a first fixing seat and a second fixing seat. The first fixing seat is respectively fixedly connected to the mounting plate and the buffer spring, and the first fixing seat is located on the side of the mounting plate close to the buffer spring; the second fixing seat is respectively fixedly connected to the connecting sleeve and the buffer spring, and the second fixing seat is located on the side of the connecting sleeve close to the buffer spring.

3. The numerical control tool lifting buffer device according to claim 1, characterized in that, The buffer assembly further includes a connecting cylinder and a sliding cylinder. The connecting cylinder is fixedly connected to the connecting sleeve and is located on one side of the connecting sleeve; the sliding cylinder is slidably connected to the connecting cylinder and is fixedly connected to the mounting plate and is located on the side of the connecting cylinder close to the mounting plate.

4. The numerical control tool lifting buffer device according to claim 1, characterized in that, The guiding frame has a first protrusion, and the mounting plate has a second protrusion. The first protrusion is located on the side of the guiding frame close to the sliding ring; the second protrusion is located on the side of the mounting plate close to the sliding ring.

5. The numerical control tool lifting buffer device according to claim 1, characterized in that, The buffer assembly further includes an auxiliary member. The auxiliary member includes a fixing frame and a buffer pad. The fixing frame is fixedly connected to the connecting sleeve and is located on one side of the connecting sleeve; the buffer pad is fixedly connected to the fixing frame and is located on the side of the fixing frame close to the tool.

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