Independent three-head tool magazine

Abstract

The invention relates to the technical field of machine tool equipment, and provides an independent three-head tool magazine. The three groups of support frames are uniformly arranged on the bottom carrier plate; the supporting rotating shaft is mounted on the bottom carrier plate on one side of the supporting frame; the guide plate is installed at the top of the supporting frame, and a concave guide sliding groove is formed in the side wall of the edge of the guide plate; the tool holders are embedded in the guide sliding groove in a sliding manner at uniform intervals; one side of the transmission chain is wound on the supporting rotating shaft through a chain wheel, the other side of the transmission chain is installed on the first motor through a chain wheel, the first motor is installed on the bottom carrying plate on the other side opposite to the supporting rotating shaft, and the tool holder is connected with the transmission chain and moves along with transmission of the transmission chain. The multiple sets of tool clamps and the transmission chains are arranged on the bottom carrying plate, the bottom carrying plate is installed below a machining shaft of the multi-station machine tool in the using process, the bottom carrying plate is pushed out when tools need to be replaced, and therefore the requirement for the high tool containing amount of the multi-station machine tool is met, and meanwhile rapid tool replacement is achieved.

Description

Technical Field

[0001] This invention relates to the field of machine tool equipment technology, and more specifically, to an independent three-head tool magazine. Background Technology

[0002] Common tool magazines are mainly classified into four types based on their structure: hood-type, chain-type, linear-type, and disc-type tool magazines. Machining centers can choose different types of tool magazines depending on the machining scenario. Chain-type tool magazines can store tools on chain links, and their tool capacity increases with the chain length. For workpieces with complex machining processes, where different tools are needed for each machining step, the advantage of a large tool capacity becomes apparent. The more tools loaded, the more machining processes the machining center can perform. However, with the changes in the market today, many workpieces are not industry standard parts, but rather non-standard parts. Some of these non-standard parts are small in size and have high precision requirements, and different workpiece shapes may require mutual matching, resulting in complex and high-volume machining processes. This has led to the development of CNC machine tools with multiple machining stations. These multi-station CNC machine tools still use linear-type tool magazines, which only have one row of tools, evenly distributed across multiple machining axes. This type of magazine cannot provide sufficient tool capacity to support the machining needs of workpieces with complex machining processes. Summary of the Invention

[0003] The present invention aims to solve the technical problems existing in the prior art. To this end, the present invention provides an independent three-head tool magazine.

[0004] To achieve the above objectives, the present invention provides an independent three-head tool magazine, comprising: a base plate; a support frame having three sets evenly arranged on the base plate; a support shaft mounted on one side of the base plate of the support frame; a guide plate mounted on the top of the support frame, the guide plate having a recessed guide groove on its edge sidewall; tool clips slidably embedded in the guide grooves at even intervals; and a drive chain having one side wound around the support shaft via a sprocket, and the other side mounted on a first motor via a sprocket, the first motor being mounted on the base plate on the opposite side of the support shaft, the tool clips being connected to the drive chain, and the tool clips moving with the drive chain.

[0005] As a further improvement to the solution, the transmission chain includes: a toothed belt wound around the sprocket, the toothed belt being made of rubber; an inner cover plate evenly spaced and installed on the outer sidewall of the toothed belt; and an outer cover plate covering and installed between the gaps of the inner cover plate, the two sides of the outer cover plate being hinged to the inner cover plate on both sides of the gap.

[0006] As a further improvement to the solution, the blade clamp includes: a bottom mounting plate, which is fixedly installed on the top of the outer cover plate, and the bottom mounting plate is provided with a flat embedding plate, which is slidably embedded in the guide groove; and clamping plates, which are symmetrically installed on the bottom mounting plate, and the opposite side of the clamping plates on both sides is provided with an arc-shaped locking protrusion.

[0007] As a further improvement to the solution, it also includes: a right-angle converter, mounted on the base plate on the side away from the supporting shaft, the right-angle converter having a secondary shaft, the secondary shaft replacing the first motor to support the rotation of the sprocket; and a power shaft, connecting the input ends of multiple right-angle converters in series and driven by one of the first motors.

[0008] As a further improvement to the solution, it also includes: a slide rail, symmetrically arranged on both sides of the bottom of the base plate; a sliding sleeve, slidably sleeved on the slide rail; a stabilizing frame, fixedly installed on the bottom of the base plate; a second motor, installed on the stabilizing frame; a transmission screw, passing through the stabilizing frame, one end of which is connected to the second motor; an upper fixed block, fixed on the bottom of the base plate away from the second motor, and rotatably connected to the end of the transmission screw; and a lower fixed block, on which a screw sleeve is provided, the lower fixed block being screwed onto the transmission screw through the screw sleeve.

[0009] As a further improvement to the solution, it also includes: a door panel, which is symmetrically arranged in front of the base plate and can be opened and closed, and opens as the base plate is pushed.

[0010] As a further improvement to the solution, it also includes: a mounting bracket installed on both sides of the bottom of the base plate; and a protective plate, the two ends of which are respectively connected to the mounting brackets on both sides.

[0011] As a further improvement to the solution, it also includes: an edge-sealing plate, installed at the top corners on both sides of the bottom plate and close to the protective plate.

[0012] As a further improvement to the solution, it also includes: a buffer plate, installed on the door panel, wherein the protective plate and the edge-sealing plate come into contact with the buffer plate as the bottom plate moves, thereby opening the door panel.

[0013] As a further improvement to the solution, the end of the edge banding plate is provided with an inwardly tapering curved portion, which first contacts the buffer plate as it moves with the bottom plate.

[0014] The present invention brings the following effects:

[0015] 1. This invention arranges multiple sets of tool holders and transmission chains on a base plate. In use, the base plate is installed below the machining axis of a multi-station machine tool. When it is necessary to change the tool, the base plate is pushed out, and then the machining axis above the tool holder moves down. As the transmission chain moves the tool holder, the tool to be replaced is rotated to the bottom of the machining axis and the tool change operation is completed. This satisfies the high tool capacity requirement of multi-station machine tools and realizes rapid tool change.

[0016] 2. This invention connects multiple transmission chains in series and drives them simultaneously through the cooperation of a right-angle converter and a power shaft. This eliminates transmission errors between the multiple transmission chains during use, and ensures that the tool will not be misaligned during the tool changing process, thus preventing situations where tool changing is impossible.

[0017] 3. Compared with traditional metal transmission chains, the transmission chain formed by the combination of toothed belt, inner cover plate and outer cover plate of the present invention has less noise and runs more smoothly during operation.

[0018] 4. The second motor, transmission screw, upper stationary block, lower stationary block and screw sleeve provided in this invention can form an independent drive mechanism on a multi-station machine tool after they cooperate with each other. The drive of the bottom plate no longer needs to rely on the Y-axis of the machine tool. The use of the upper bottom plate and the Y-axis does not affect each other, and at the same time, it can avoid collision with the workpiece during tool changing.

[0019] 5. The door panel of this invention can separate the working area and the tool storage area when the machine tool is working, so as to prevent impurities generated during processing from splashing onto the tool. At the same time, in use, the door panel is opened as the bottom plate is pushed out, and the edge plate set on the edge of the bottom plate and the buffer plate set on the door panel can effectively reduce the friction and wear of the bottom plate on the door panel, so as to protect the door panel and extend its service life. Attached Figure Description

[0020] Figure 1 This is a complete schematic diagram of the present invention.

[0021] Figure 2 For the present invention Figure 1 A schematic diagram showing parts of the guide plate, tool holder, and drive chain is omitted.

[0022] Figure 3 This is a schematic diagram of the guide plate, blade holder, transmission chain, first motor, and right-angle converter of the present invention.

[0023] Figure 4 For the present invention Figure 3 Another perspective illustration.

[0024] Figure 5 This is a schematic diagram of the support frame after separation according to the present invention.

[0025] Figure 6This is a schematic diagram showing the separation of the guide plate and the tool holder according to the present invention.

[0026] Figure 7 This is a schematic diagram of the right-angle converter of the present invention connected in series via a power shaft.

[0027] Figure 8 This is a schematic diagram of the bottom of the base plate of the present invention.

[0028] Figure 9 This is a schematic diagram showing the separation of the lower stop block and the lead screw sleeve of the present invention.

[0029] Figure 10 This is a schematic diagram of the specific structure of the transmission chain of the present invention.

[0030] Figure 11 This is a schematic diagram of the specific structure of the blade holder of the present invention.

[0031] Figure 12 This is a schematic diagram showing the location of the door panel in this invention.

[0032] Figure 13 This is a schematic diagram of the hanging rack, protective plate, edge banding plate, and buffer plate of the present invention.

[0033] Figure 14 This is a schematic diagram showing the changes in the fit between the door panel and the buffer plate of the present invention.

[0034] The correspondence between the reference numerals and component names in the attached drawings is as follows: 1-bottom plate, 2-support frame, 3-support shaft, 4-guide plate, 41-guide groove, 5-knife clamp, 51-bottom mounting plate, 52-embedded plate, 53-clamping plate, 54-arc-shaped protrusion, 6-drive chain, 61-sprocket, 62-toothed belt, 63-inner cover plate, 64-outer cover plate, 7-first motor, 8-right-angle converter, 81-secondary shaft, 9-power shaft, 100-slide rail, 101-sliding sleeve, 11-stabilizing frame, 111-second motor, 112-drive screw, 113-upper fixed block, 114-lower fixed block, 115-screw sleeve, 12-door panel, 121-hanging bracket, 122-protective plate, 123-edge plate, 124-buffer plate, 1231-bending part. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] This invention specifically discloses an independent three-head tool magazine, such as... Figures 1-14 As shown, it includes: a base plate 1, which is installed directly below the machining axis of a multi-station machine tool during use. It should be noted that the machine tool includes three basic axes, namely X, Y, and Z axes. The three axes represent three drive execution structures that move in different directions on the machine tool. The X axis is the horizontal axis, the Z axis is the vertical axis and is installed on the X axis, while the machining axis of the machine tool is usually installed on the Z axis. The Y axis is arranged below the X axis and the movement direction of the Y axis is perpendicular to that of the X axis. The Y axis is usually used to fix and place the workpiece. When using the base plate 1, it is generally installed on the side of the Y axis. In this way, when it is necessary to change the tool, it is only necessary to move the Y axis forward to slide the base plate 1 installed on the Y axis below the Z axis to complete the tool change.

[0038] On multi-station machine tools, in order to increase the number of tools that can be changed individually for each machining axis, such as Figure 2 , Figure 5 and Figure 6 As shown, three support frames 2 are evenly spaced on the base plate 1. A support shaft 3 is fixedly installed on the base plate 1 near one edge of the support frame 2. A guide plate 4 is fixedly installed on the top of the support frame 2. A recessed guide groove 41 is opened on the side wall of the guide plate 4. The tool holder 5 is evenly slidably installed in the guide groove 41 around the edge of the guide plate 4. The tool holder 5 is connected to the transmission chain 6, and the transmission chain 6 drives the tool holder 5 to slide around the edge of the guide plate 4. One side of the transmission chain 6 is mounted on the support shaft 3 through a sprocket 61, and the other side of the transmission chain 6 is mounted on the first motor 7 through a sprocket 61. In this way, the transmission chain 6 is mounted below the guide plate 4, and the first motor 7 drives the transmission chain 6 to move the tool holder 5. The first motor 7 is located on the base plate 1 on the other side of the support shaft 3.

[0039] Specifically, during use, the base plate 1 is installed on the Y-axis of the multi-station machine tool. When the machine tool is machining a workpiece, the base plate 1 is located behind the Y-axis. When the machining axis on the Z-axis needs to change tools, the transmission chain 6 drives the tool holder 5 to move. First, the tool holder 5 that needs to be replaced is moved closer to the machining axis. Then, the Y-axis moves forward with the base plate 1, thereby aligning the machining axis and the tool holder 5 vertically. Then, the machining axis moves up and down to exchange tools. The tool holder 5, driven by the transmission chain 6, first clamps the tool on the machining axis with the empty tool holder 5, unloads the original tool, and then rotates the new tool under the machining axis for replacement. After the tool replacement is completed, the Y-axis returns to its original position, and the base plate 1 is hidden behind the Y-axis to avoid interfering with the workpiece machining. The tool storage through the chain structure enables the multi-station machine tool to have a high-capacity tool magazine. Each machining axis corresponds to a chain tool magazine, which is installed under the machining axis to meet the high tool capacity requirements of the multi-station machine tool and to achieve rapid tool changing.

[0040] like Figure 5 and Figure 10 As shown, in order to reduce the noise of the transmission chain 6 during operation, the transmission chain 6 includes a toothed belt 62 wound around the sprocket 61. The transmission of the transmission chain 6 is mainly achieved by the innermost toothed belt 62 meshing with the sprocket 61. The toothed belt 62 is made of rubber, which produces less noise and smoother transmission during operation. In order to enhance the structural strength of the rubber toothed belt 62, an inner cover plate 63 is fixedly installed on the outer surface of the toothed belt 62 at even intervals. Through the gaps in the inner cover plate 63, an outer cover plate 64 is hinged and installed at even intervals on the inner cover plate 63. The chain structure formed by the combination of the inner cover plate 63 and the outer cover plate 64 covers the outer layer of the toothed belt 62, thereby enhancing the structural strength of the toothed belt 62. This makes the toothed belt 62 less likely to break during operation. The blade clip 5 is installed on the top of the outer cover plate 64 and moves with it.

[0041] like Figure 6 and Figure 11 As shown, the tool holder 5 mainly consists of two parts: a bottom mounting plate 51 and a clamping plate 53. The bottom mounting plate 51 is fixedly installed on the top of the outer cover plate 64. A flat embedded plate 52 extends from the bottom mounting plate 51. The embedded plate 52 slides into the guide groove 41. As the tool holder 5 moves with the transmission chain 6, it slides smoothly and steadily in the guide groove 41 through the embedded plate 52. The clamping plates 53 are symmetrically installed on the bottom mounting plate 51. Each of the two clamping plates 53 has a concave arc-shaped locking protrusion 54 on one side of each other. The tool is locked onto the transmission chain 6 by the arc-shaped locking protrusion 54 on the clamping plate 53 to prevent it from falling off.

[0042] like Figure 2 , Figure 5 and Figure 7As shown, to ensure the synchronization of multiple transmission chains 6, a right-angle converter 8 is also included, which has a secondary shaft 81. The right-angle converter 8 replaces the first motor 7 and is installed on the base plate 1 on the side away from the supporting shaft 3. The sprocket 61 originally driven by the first motor 7 is now connected to the secondary shaft 81. At the same time, the input ends of multiple right-angle converters 8 are connected in series through the power shaft 9. At this time, the first motor 7 is installed on one of the right-angle converters 8 and drives the right-angle converter 8 to rotate. After power transmission through the power shaft 9, all right-angle converters 8 can drive the corresponding sprocket 61 to rotate, thereby realizing the synchronous rotation of multiple transmission chains 6 and avoiding transmission errors.

[0043] like Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, it also includes: slide rails 100 symmetrically arranged on both sides of the bottom of the base plate 1, with sliding sleeves 101 slidably sleeved on the slide rails 100. In use, the base plate 1 and the Y-axis are installed separately. Specifically, the base plate 1 is slidably installed below the Z-axis through the slide rails 100 and sliding sleeves 101, that is, the base plate 1 is slidably mounted between the Y-axis and the Z-axis. A stabilizing frame 11 is fixedly installed at the bottom of the base plate 1, and a second motor 111 is installed on the stabilizing frame 11. A transmission screw 112 is passed through the stabilizing frame 11, and one end of the transmission screw 112 is connected to the second motor 111. An upper fixed block 113 is fixedly installed at the bottom of the base plate 1 on the side away from the second motor 111. The end of the transmission screw 112 is rotatably connected to the upper fixed block 113. A screw sleeve 115 is threadedly connected to the transmission screw 112, and the screw sleeve 115 is fixedly installed on the lower fixed block 114.

[0044] Specifically, after the base plate 1 is slidably installed below the Z-axis via the slide rail 100 and the sliding sleeve 101, the lower fixed block 114 needs to be fixedly connected to the machine tool. At this time, the base plate 1 and the Y-axis each have independent guiding mechanisms. The movement of the Y-axis will not affect the base plate 1. When the base plate 1 needs to move, the transmission screw 112 is driven to rotate by the second motor 111. Under the action of the screw sleeve 115, the base plate 1 slides out from below the Z-axis via the slide rail 100 and the sliding sleeve 101. The drive of the base plate 1 no longer needs to rely on the Y-axis of the machine tool. In use, the base plate 1 and the Y-axis do not affect each other, and collisions with the workpiece can also be avoided during tool changing.

[0045] like Figure 2 and Figure 12As shown, it also includes: symmetrically arranged openable door panels 12 in front of the bottom plate 1. When in use, the door panels 12 are installed at the tool magazine opening of the multi-station machine tool. When the bottom plate 1 is completely inside the tool magazine, the door panels 12 close the opening, separating the working area from the tool storage area of ​​the tool magazine when the machine tool is working, thereby preventing machining impurities from entering the tool magazine. When the bottom plate 1 slides out, the door panels 12 will be pushed open by the front end of the bottom plate 1.

[0046] like Figure 2 , Figure 12 and Figure 13 As shown, hanging brackets 121 are fixedly installed on both sides of the bottom of the base plate 1. The ends of the two hanging brackets 121 are fixedly connected to a protective plate 122. The protective plate 122 covers the ends of the base plate 1. When the bottom plate 1 pushes the door panel 12 open, the door panel 12 is pushed open by the contact between the protective plate 122 and the door panel 12, thereby protecting the edge of the bottom plate 1 from wear.

[0047] like Figure 13 and Figure 14 As shown, it also includes: an edge banding plate 123 fixedly installed at the top corners of both sides of the base plate 1 and near the protective plate 122. The end of the edge banding plate 123 is provided with an inwardly curved portion 1231. A buffer plate 124 is fixedly installed on the door panel 12 at the position corresponding to the edge banding plate 123. The protective plate 122 and the edge banding plate 123 contact the buffer plate 124 as the base plate 1 moves, thereby opening the door panel 12. The curved portion 1231 at the end of the edge banding plate 123 moves with the base plate 1. During the process, the door panel 12 will first come into contact with the buffer plate 124. As the door panel 12 opens, it slides along the curved part 1231 of the edge plate 123. Under the action of the buffer plate 124, the door panel 12 is pushed open with the help of the pushing force of the bottom plate 1. The buffer plate 124 can effectively prevent the door panel 12 from bulging and deforming on the surface during long-term use. The edge plate 123 protects the edge of the bottom plate 1. At the same time, the curved part 1231 can also better open the door panel 12 after it is pushed.

[0048] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An independent three-head tool magazine, comprising: The base plate (1) is characterized by further comprising: a support frame (2) having three sets evenly arranged on the base plate (1); a support shaft (3) mounted on the base plate (1) on one side of the support frame (2); a guide plate (4) mounted on the top of the support frame (2), wherein the guide plate (4) has a recessed guide groove (41) on its edge sidewall; a blade clip (5) slidably embedded in the guide groove (41) at even intervals; and a transmission chain (6) having one side wound around the support shaft (3) via a sprocket (61) and the other side mounted on a first motor (7) via a sprocket (61), wherein the first motor (7) is mounted on the base plate (1) on the other side opposite to the support shaft (3), the blade clip (5) is connected to the transmission chain (6), and the blade clip (5) moves with the transmission of the transmission chain (6).

2. The independent three-head tool magazine according to claim 1, characterized in that, The transmission chain (6) includes: a toothed belt (62) wound around the sprocket (61), the toothed belt (62) being made of rubber; an inner cover plate (63) evenly spaced and installed on the outer sidewall of the toothed belt (62); and an outer cover plate (64) covering and installed between the gaps of the inner cover plate (63), the two sides of the outer cover plate (64) being hinged to the inner cover plate (63) on both sides of the gap.

3. The independent three-head tool magazine according to claim 2, characterized in that, The blade holder (5) includes: a bottom mounting plate (51) fixedly mounted on the top of the outer cover plate (64), the bottom mounting plate (51) having a flat embedding plate (52) which is slidably embedded in the guide groove (41); and clamping plates (53) symmetrically mounted on the bottom mounting plate (51), with an arc-shaped locking protrusion (54) on one side of each clamping plate (53).

4. The independent three-head tool magazine according to claim 3, characterized in that, Also includes: A right-angle converter (8) is mounted on the base plate (1) on the side away from the supporting shaft (3). The right-angle converter (8) is provided with a secondary shaft (81), which replaces the first motor (7) to support the rotation of the sprocket (61). A power shaft (9) connects the input ends of multiple right-angle converters (8) in series and is driven by one of the first motors (7).

5. The independent three-head tool magazine according to claim 4, characterized in that, Also includes: A slide rail (100) is symmetrically arranged on both sides of the bottom of the base plate (1); a sliding sleeve (101) is slidably sleeved on the slide rail (100); a stabilizing frame (11) is fixedly installed on the bottom of the base plate (1); a second motor (111) is installed on the stabilizing frame (11); a transmission screw (112) extends out from the stabilizing frame (11), and one end of it is connected to the second motor (111); an upper fixed block (113) is fixed on the bottom of the base plate (1) on the side away from the second motor (111), and is rotatably connected to the end of the transmission screw (112); a lower fixed block (114) is provided with a screw sleeve (115), and the lower fixed block (114) is screwed onto the transmission screw (112) through the screw sleeve (115).

6. The independent three-head tool magazine according to claim 5, characterized in that, Also includes: The door panel (12) is symmetrically arranged in front of the bottom plate (1) and can be opened and closed, and opens as the bottom plate (1) is pushed.

7. The independent three-head tool magazine according to claim 6, characterized in that, Also includes: Hanging brackets (121) are installed on both sides of the bottom of the base plate (1); protective plates (122) are connected at both ends to the hanging brackets (121) on both sides respectively.

8. The independent three-head tool magazine according to claim 7, characterized in that, Also includes: The edge banding plate (123) is installed at the top corners on both sides of the bottom plate (1) and close to the protective plate (122).

9. The independent three-head tool magazine according to claim 8, characterized in that, Also includes: A buffer plate (124) is installed on the door panel (12). The protective plate (122) and the edge plate (123) come into contact with the buffer plate (124) as the bottom plate (1) moves, thereby opening the door panel (12).

10. The independent three-head tool magazine according to claim 9, characterized in that, The end of the edge plate (123) is provided with an inwardly tapering curved portion (1231), which first contacts the buffer plate (124) as it moves with the bottom plate (1).

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