Multifunctional quick replacement device for milling machine cutter

Abstract

The utility model relates to the technical field of milling machine cutters, in particular to a multifunctional quick replacement device for milling machine cutters, which is fixedly mounted in a cutter cylinder through a fixed disc, a milling cutter is positioned in the cutter cylinder, a key slot is arranged on the milling cutter, a positioning rod is fixedly mounted on the fixed disc, a movable disc is slidably mounted on the positioning rod, and the positioning rod penetrates through the movable disc. The abutting rod is fixedly installed on the movable disc and located on the side, away from the fixed disc, of the movable disc, the driving assembly drives the movable disc to move, the elastic abutting block is fixedly installed in the tool barrel and located at the end, away from the fixed disc, of the tool barrel, and the elastic abutting block is extruded by the abutting rod through cooperation of the positioning rod and the key groove and driving of the driving assembly; and the elastic abutting block further extrudes the milling cutter, so that the milling cutter is firmly fixed in the cutter cylinder, and the milling cutter is prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of milling machine cutters, in particular to a multifunctional quick-changing device for milling machine cutters. Background Art

[0002] A milling cutter is a rotating tool with one or more teeth used for milling. Each tooth sequentially and intermittently removes the workpiece's excess material. Milling cutters are primarily used on milling machines to create flat surfaces, steps, grooves, formed surfaces, and cut-off parts.

[0003] Conventional milling cutter quick-change devices are mainly fixed by threaded connection. After the tool has been used for a period of time, the tool is prone to loosening or falling due to the vibration of the tool itself, seriously affecting the stability and safety of the tool. Utility Model Content

[0004] The purpose of the utility model is to provide a multifunctional quick-changing device for milling machine tools, which solves the problem that conventional milling cutter quick-changing devices are mainly fixed by threaded connection. After the tool has been used for a period of time, due to the vibration of the tool itself, the tool is prone to loosening or falling, which seriously affects the stability and safety of the tool.

[0005] To achieve the above-mentioned purpose, the utility model provides a multifunctional quick-changing device for milling machine tools, including a tool cylinder and a fixed disk, the fixed disk is fixedly installed in the tool cylinder, the milling cutter is located in the tool cylinder, the milling cutter is provided with a keyway, and also includes a replacement positioning device, the replacement positioning device includes a positioning rod, a movable disk, an abutment rod, an elastic abutment block and a drive assembly, the positioning rod is fixedly installed on the fixed disk, the movable disk is slidably installed on the positioning rod, and the positioning rod passes through the movable disk, the abutment rod is fixedly installed on the movable disk, and is located on the side of the movable disk away from the fixed disk, the drive assembly drives the movable disk to move, and the elastic abutment block is fixedly installed in the tool cylinder and is located at one end of the tool cylinder away from the fixed disk.

[0006] The driving assembly includes a screw, a first gear and a transmission member. The screw is rotatably mounted on the fixed disk and threadedly passes through the movable disk. The first gear is fixedly mounted on the screw. The transmission member drives the first gear to rotate.

[0007] In which, the transmission component includes a rotating shaft, a second gear and a ring gear, the rotating shaft is rotatably installed in the tool barrel; the second gear is fixedly installed on the rotating shaft and meshes with the first gear, the tool barrel is provided with an annular groove on the side close to the first gear, and the tool barrel is also provided with a receiving groove on the side close to the annular groove, the receiving groove passes through the tool barrel, and the second gear passes through the receiving groove; the ring gear is rotatably installed on the tool barrel and is located in the annular groove, and the ring gear is meshed with the second gear.

[0008] Wherein, the replacement positioning device further includes an anti-slip layer, and the anti-slip layer is fixedly mounted on the elastic abutment block.

[0009] Wherein, the replacement positioning device further comprises an auxiliary positioning key, and the auxiliary positioning key is fixedly mounted on a side of the tool cylinder close to the elastic abutment block.

[0010] The utility model provides a multifunctional quick-changing device for milling machine tools. When the milling cutter needs to be replaced with a new one, the milling cutter is slid along the bottom of the tool barrel so that the positioning rod is inserted into the keyway, and at this time the elastic abutment block is pressed and contacted with the four sides of the milling cutter, and then the gear ring is rotated to rotate in the annular groove. The gear ring drives the second gear and the rotating shaft to rotate through meshing with the second gear. The second gear drives the first gear to rotate through meshing with the first gear. The first gear further drives the screw to rotate. Since the screw is threadedly matched with the movable disk, the screw drives the movable disk to move downward along the positioning rod. As the movable disk moves, the abutment rod moves accordingly. The movement of the abutment rod further squeezes the elastic abutment block, so that the elastic abutment block squeezes the milling cutter, thereby firmly fixing the milling cutter in the tool barrel and preventing the milling cutter from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0012] Figure 1 It is a schematic diagram of the overall structure of a multifunctional quick-changing device for milling machine tools according to the first embodiment of the present utility model.

[0013] Figure 2 It is a structural diagram of the replacement positioning device of the first embodiment of the present utility model.

[0014] Figure 3 This is a schematic diagram of the connection between the first gear and the second gear in the first embodiment of the present utility model.

[0015] Figure 4 It is a structural schematic diagram of the tool cylinder of the first embodiment of the present utility model.

[0016] Figure 5 It is a schematic diagram of the overall structure of a multifunctional quick-changing device for milling machine tools according to the second embodiment of the present utility model.

[0017] In the figure: 101- tool cylinder, 102- fixed disk, 103- elastic abutment block, 104- milling cutter, 105- keyway, 106- positioning rod, 107- moving disk, 108- abutment rod, 109- screw rod, 110- first gear, 111- rotating shaft, 112- second gear, 113- gear ring, 114- annular groove, 115- receiving groove, 116- anti-slip layer, 201- auxiliary positioning key DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] The first embodiment of this application is:

[0020] See also Figure 1-4 , Figure 2 This is a schematic structural diagram of the replacement positioning device of the first embodiment of the utility model. Figure 3 This is a schematic diagram of the connection between the first gear and the second gear in the first embodiment of the present utility model. Figure 4 It is a structural schematic diagram of the tool cylinder of the first embodiment of the present utility model.

[0021] The present invention provides a multifunctional quick-changing device for milling machine tools: it includes a tool cylinder 101 and a fixed disk 102, and also includes a replacement positioning device, the replacement positioning device includes a positioning rod 106, a movable disk 107, an abutment rod 108, an elastic abutment block 103 and a drive assembly, the drive assembly includes a screw 109, a first gear 110 and a transmission component, the transmission component includes a rotating shaft 111, a second gear 112 and a gear ring 113, the replacement positioning device also includes an anti-slip layer 116, and the above-mentioned solution solves the problem that the conventional milling cutter quick-changing device mainly adopts a threaded connection for fixing, and after the tool has been used for a period of time, due to the vibration of the tool itself, the tool is prone to loosening or falling, seriously affecting the stability and safety of the tool. It can be understood that this solution can also be used to solve the problem of initial positioning of the milling cutter.

[0022] In this embodiment, the driving assembly drives the abutment rod 108 to squeeze the elastic abutment block 103, so that the elastic abutment block 103 further squeezes the milling cutter 104, thereby firmly fixing the milling cutter 104 in the tool barrel 101, preventing the milling cutter 104 from loosening.

[0023] Among them, the positioning rod 106 is fixedly mounted on the fixed disk 102, and the movable disk 107 is slidably mounted on the positioning rod 106. At the same time, the positioning rod 106 passes through the movable disk 107, and the abutment rod 108 is fixedly mounted on the movable disk 107 and is located on the side of the movable disk 107 away from the fixed disk 102. The driving assembly drives the movable disk 107 to move, and the elastic abutment block 103 is fixedly mounted in the tool cylinder 101 and is located at the end of the tool cylinder 101 away from the fixed disk 102. The tool cylinder 101 is a cylindrical structure with a hollow interior and a conical bottom inside. Four groups of key grooves 105 are provided in an annular shape on the milling cutter 104. There are four groups of positioning rods 106, which are distributed in an annular shape on the fixed disk 102. The width of the positioning rod 106 is equal to the width of the key groove 105. The middle of the movable disk 107 passes through It is provided with threaded holes, and the number of the abutment rods 108 is four groups, and they are distributed in a ring at the bottom of the movable disk 107. The number of the elastic abutment blocks 103 is four groups, and their positions correspond one to one with the positions of the abutment rods 108. The elastic abutment blocks 103 are made of elastic metal material, and the width of the elastic abutment blocks 103 is greater than the width of the keyway 105. When in use, the milling cutter 104 is inserted into the tool cylinder 101 so that the positioning rod 106 cooperates with the keyway 105, and the driving assembly is driven to make the movable disk 107 drive the abutment rod 108 to move downward along the positioning rod 106. The abutment rod 108 squeezes the elastic abutment block 103, so that the elastic abutment block 103 further squeezes the milling cutter 104, thereby firmly fixing the milling cutter 104 in the tool cylinder 101, and preventing the milling cutter 104 from loosening.

[0024] Secondly, the screw 109 is rotatably mounted on the fixed disk 102 and is threaded through the movable disk 107; the first gear 110 is fixedly mounted on the screw 109; the transmission component drives the first gear 110 to rotate, and the first gear 110 is welded to the screw 109. The screw 109 is rotatably engaged with the fixed disk 102 through a bearing. The transmission component drives the first gear 110 to rotate, so that the first gear 110 drives the screw 109 to rotate. The screw 109 drives the movable disk 107 to move through a threaded connection with the movable disk 107, thereby realizing the driving of the movable disk 107.

[0025] Again, the rotating shaft 111 is rotatably mounted in the tool cylinder 101; the second gear 112 is fixedly mounted on the rotating shaft 111 and meshes with the first gear 110. The tool cylinder 101 is provided with an annular groove 114 on one side close to the first gear 110, and the tool cylinder 101 is also provided with a receiving groove 115 on one side close to the annular groove 114. The receiving groove 115 passes through the tool cylinder 101, and the second gear 112 passes through the receiving groove 115; the gear ring 113 is rotatably mounted on the tool cylinder 101 and is located in the annular groove 114. At the same time, the gear ring 113 The ring 113 is engaged with the second gear 112, and the rotating shaft 111 is rotatably matched with the inner top of the tool cylinder 101 through a bearing. The second gear 112 is key-connected to the rotating shaft 111, and meshing teeth are provided on the inner side of the ring gear 113. When in use, the ring gear 113 is rotated so that the ring gear 113 drives the second gear 112 and the rotating shaft 111 to rotate by engaging with the second gear 112. The second gear 112 further drives the first gear 110 to rotate by engaging with the first gear 110, thereby realizing the driving of the first gear 110.

[0026] Finally, the anti-slip layer 116 is fixedly installed on the elastic abutment block 103. There are four groups of anti-slip layers 116. Each group of the elastic abutment blocks 103 is adhered with one group of anti-slip layers 116. The anti-slip layer 116 is made of rubber. Through the setting of the anti-slip layer 116, the friction between the elastic abutment block 103 and the milling cutter 104 is greater.

[0027] In this embodiment, when the milling cutter 104 needs to be replaced with a new one, the milling cutter 104 is slid into the bottom of the tool barrel 101 so that the positioning rod 106 is inserted into the keyway 105, and at this time the elastic abutment block 103 is pressed against the four sides of the milling cutter 104, and then the gear ring 113 is rotated in the annular groove 114. The gear ring 113 drives the second gear 112 and the rotating shaft 111 to rotate by meshing with the second gear 112, and the second gear 112 drives the first gear 110 to mesh with the first gear 110. 110 rotates, and the first gear 110 further drives the screw 109 to rotate. Since the screw 109 is threadedly matched with the movable disk 107, the screw 109 drives the movable disk 107 to move downward along the positioning rod 106. As the movable disk 107 moves, the abutment rod 108 moves accordingly. The movement of the abutment rod 108 further squeezes the elastic abutment block 103, so that the elastic abutment block 103 squeezes the milling cutter 104, thereby firmly fixing the milling cutter 104 in the tool barrel 101, and preventing the milling cutter 104 from loosening.

[0028] The second embodiment of this application is:

[0029] See also Figure 5 ,in Figure 5 It is a schematic diagram of the overall structure of a multifunctional quick-changing device for milling machine tools according to the second embodiment of the present utility model. On the basis of the first embodiment, the multifunctional quick-changing device for milling machine tools according to this embodiment further includes an auxiliary positioning key 201.

[0030] In this embodiment, the provision of the auxiliary positioning key 201 makes it easier for the positioning rod 106 to cooperate with the key slot 105 .

[0031] Among them, the auxiliary positioning key 201 is fixedly installed on the side of the tool barrel 101 close to the elastic abutment block 103. The number of the auxiliary positioning keys 201 is four groups, and they are annularly welded on the inner bottom of the tool barrel 101. At the same time, the positions of the four groups of auxiliary positioning keys 201 correspond one to one to the positions of the four groups of positioning rods 106. The width of the auxiliary positioning key 201 is equal to the width of the keyway 105. When replacing the milling cutter 104, first align the keyway 105 of the milling cutter 104 with the auxiliary positioning key 201, and make the milling cutter 104 slide into the tool barrel 101 through the auxiliary positioning key 201. As the milling cutter 104 slides in, the positioning rod 106 can be directly positioned and matched with the keyway 105, so that by initially positioning the milling cutter 104, it is easier for the positioning rod 106 to match with the keyway 105.

[0032] In this embodiment, when replacing the milling cutter 104, first align the keyway 105 of the milling cutter 104 with the auxiliary positioning key 201, and allow the milling cutter 104 to slide into the tool barrel 101 through the auxiliary positioning key 201. As the milling cutter 104 slides in, the positioning rod 106 can be directly positioned and matched with the keyway 105, thereby making it easier for the positioning rod 106 to match with the keyway 105 by initially positioning the milling cutter 104.

[0033] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A multifunctional quick-change device for milling machine tools, comprising a tool barrel and a fixed plate, wherein the fixed plate is fixedly mounted in the tool barrel, the milling cutter is located in the tool barrel, and the milling cutter is provided with a keyway, characterized in that: It also includes replacing the positioning device; The replacement positioning device includes a positioning rod, a movable disk, an abutment rod, an elastic abutment block and a driving assembly. The positioning rod is fixedly mounted on the fixed disk, the movable disk is slidably mounted on the positioning rod, and the positioning rod passes through the movable disk. The abutment rod is fixedly mounted on the movable disk and is located on a side of the movable disk away from the fixed disk. The driving assembly drives the movable disk to move. The elastic abutment block is fixedly mounted in the tool cylinder and is located at one end of the tool cylinder away from the fixed disk.

2. The multifunctional quick-changing device for milling machine tools according to claim 1, characterized in that: The driving assembly includes a screw, a first gear and a transmission member. The screw is rotatably mounted on the fixed disk and is threaded through the movable disk. The first gear is fixedly mounted on the screw. The transmission member drives the first gear to rotate.

3. The multifunctional quick-changing device for milling machine tools according to claim 2, characterized in that: The transmission component includes a rotating shaft, a second gear and a ring gear. The rotating shaft is rotatably installed in the tool barrel; the second gear is fixedly installed on the rotating shaft and meshes with the first gear. The tool barrel is provided with an annular groove on the side close to the first gear, and the tool barrel is also provided with a receiving groove on the side close to the annular groove. The receiving groove passes through the tool barrel, and the second gear passes through the receiving groove; the ring gear is rotatably installed on the tool barrel and is located in the annular groove, and the ring gear is meshed with the second gear.

4. The multifunctional quick-changing device for milling machine tools according to claim 1, characterized in that: The replacement positioning device further includes an anti-slip layer, which is fixedly mounted on the elastic abutment block.

5. The multifunctional quick-changing device for milling machine tools according to claim 1, characterized in that: The replacement positioning device further comprises an auxiliary positioning key, which is fixedly mounted on a side of the tool cylinder close to the elastic abutment block.

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