A tool magazine for a vertical machining center used in the production of mechanical parts

Abstract

The present invention relates to the technical field of machining centers, and discloses a vertical machining center tool magazine for the production of mechanical parts, including a protective shell and a tool, a prompt ring is provided in the middle of the protective shell, a fixing clamp is movably connected to the upper end of the tool, a semicircular block is movably sleeved on the right end of the fixing clamp, a first gear set is meshed on the right side of the semicircular block, and a support bar is fixedly installed on the top of the fixing clamp. The present invention can separate the two fixing clamps to leave space for the tool to enter when changing the tool, and the two fixing clamps are restored to clamp the tool after the tool enters, and the tool is buffered and fixed by the rubber layer provided inside the fixing clamp, and the tool is further fixed by the first matching block, the spring, the second matching block and the movable component, thereby ensuring a better fixing effect, and at the same time, it can also change the hard contact into elastic buffering, thereby reducing the deformation of the tool and the fixing clamp.

Description

Technical Field

[0001] The invention relates to the technical field of machining centers, in particular to a vertical machining center tool magazine for producing mechanical parts. Background Art

[0002] The automatic tool changing system is an important component of CNC machine tools. It mainly transfers the tools required for processing from the tool magazine to the spindle clamping mechanism. The structural characteristics of the tool clamping element and the connection method of the machine tool spindle will directly affect the processing performance of the machine tool. The tool magazine structure and the working method of the tool changing device will affect the tool changing efficiency of the machine tool. The complexity of the automatic tool changing system itself and related structures will have a direct impact on the cost of the machine tool. The servo tool magazine uses a servo motor as the tool magazine motor. It is controlled by a precision servo motor. The motor selects the tool by walking at an angle, has strong controllability and accurate positioning. Compared with ordinary tool magazines, it has the characteristics of fast speed and can prevent tool chaos caused by abnormal signals.

[0003] In order to fix the tool during use, the existing servo tool magazine usually applies a certain pressure on the tool to achieve stability. However, if this continues for a long time, the contact position between the fixing device and the tool will be deformed, resulting in poor fixing effect and even affecting the tool changing of the tool changing mechanism; during the working process, the tool will gradually wear out due to the processing of the workpiece by the tool, affecting the processing efficiency. The existing observation methods are all naked eye observation, which is prone to inaccuracy and easy to miss things; during processing, the tool is easily contaminated with dust and debris. If it is not cleaned, it will affect the internal cleanliness of the tool magazine and easily affect the next processing. Therefore, in view of the above problems, a tool magazine structure with good clamping and buffering effect, good wear self-detection effect and good cleaning effect is proposed. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] The present invention is aimed at the above-mentioned defects existing in the prior art, and specifically proposes a vertical machining center tool magazine for the production of mechanical parts, which solves the problem that the tools of the prior equipment are easily contaminated with dust and debris during processing. If they are not cleaned, it will affect the internal cleanliness of the tool magazine, easily affecting the subsequent use of the tools and causing damage to the tools.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the present invention provides a tool magazine for a vertical machining center for the production of mechanical parts, comprising a protective shell and a tool, a prompt ring is provided in the middle of the protective shell, the upper end of the tool is movably clamped with a fixing clamp, the right end of the fixing clamp is movably sleeved with a semicircular block, the right side of the semicircular block is meshed with a first gear set, a support bar is fixedly installed on the top of the fixing clamp, the front and rear ends of the semicircular block are movably sleeved with limiting blocks, a rack is fixedly installed on the right side of the fixing clamp, a second gear set is meshed on the inner side of the rack, a first matching block is fixedly installed on the left end of the fixing clamp, a spring is fixedly installed at the rear end of the inner cavity of the first matching block, the front end of the spring is fixedly connected to the second matching block, and a movable component is provided on the right side of the second matching block.

[0008] Preferably, a tool changing mechanism is provided at the right end of the bottom of the protective shell, a fixed block is fixedly installed at the bottom of the tool changing mechanism, a first disc is fixedly installed on the left side of the fixed block, a second disc is movably connected to the top of the first disc, a cleaning column is movably sleeved on the top of the second disc, and a third gear set is meshed at the lower end of the cleaning column.

[0009] Preferably, reminder lights are provided inside the reminder ring, and the number of the reminder lights is the same as the number of tools. The reminder lights correspond to the positions of the tools. Through this structure, the reminder lights can be used to remind the operator to replace the tool when the tool is severely worn, which can effectively save the operator's inspection time and facilitate the positioning of the worn tool.

[0010] Preferably, the first gear set consists of a first gear and a first motor, a tooth block is provided at the right end of the semicircular block, and cylindrical blocks are provided at the front and rear ends of the semicircular block. The cylindrical block is movably connected with the limit block. Through this structure, the first motor can drive the first gear to make the semicircular block rotate ninety degrees counterclockwise, so that the tool is parallel to the protective shell, saving space.

[0011] Preferably, there are two fixing clips, which are located at the front and rear sides of the tool. There are two racks, which are respectively installed at the upper end of the right side of one fixing clip and the lower end of the right side of the other fixing clip. The second gear set consists of a second gear and a second motor, and the second gear is meshed with the two racks. The second motor is fixedly installed on the right side of the first gear. A rubber layer is provided on the inner side of the fixing clip. Through this structure, the distance between the two fixing clips can be enlarged when the tool is disassembled and assembled, so that the tool can pass through, and the tool can also be tightened to be fixed when passing through. The provided rubber layer can provide a certain buffering effect to ensure that there is no hard contact when fixing, thereby forming protection.

[0012] Preferably, a pressure sensor is provided inside the support bar, and the number of the support bars is two and the two support bars form a U-shape. The pressure sensor is electrically connected to the indicator light. Through this structure, the change in weight of the tool can be obtained by judging the pressure of the tool after changing the tool, so as to judge the degree of wear. This method can accurately obtain the change in tool weight. When the weight changes to a certain extent, the indicator light comes on and the tool can be replaced, saving effort and time.

[0013] Preferably, the movable component is composed of a telescopic rod and a trapezoidal block, a cutting angle is arranged on the right side of the front part of the second matching block, a rectangular block is arranged on the left side of the front part of the second matching block, the spring is fixedly connected to the rear part of the rectangular block, and a circular arc consistent with the curvature of the surface of the tool is arranged on the left end of the second matching block. Through this structure, the telescopic rod can drive the trapezoidal block to move and squeeze the second matching block to move to the left to fix the tool, and it can also be restored under the action of the spring after the fixation is cancelled.

[0014] Preferably, the third gear set consists of a third gear and a third motor, a fourth gear is provided at the bottom of the cleaning column, the third gear is meshed with the fourth gear, a fourth motor is fixedly installed at the bottom of the second disc, a brush is provided on the surface of the cleaning column, the fourth motor is fixedly installed inside the first disc, and the third motor is fixedly installed inside the second disc. Through this structure, the tool can be cleaned when changing the tool to ensure the cleanliness of the tool, and the second disc is driven to rotate by the fourth motor to make the cleaning of the tool more thorough.

[0015] 3. Beneficial Effects

[0016] Compared with the prior art, the present invention, through the cooperation of the rack, the fixing clamp and the second gear set, can separate the two fixing clamps to leave space for the tool to enter when changing the tool. After the tool enters, the two fixing clamps are restored to clamp the tool, and the tool is buffered and fixed by the rubber layer arranged inside the fixing clamp, and the tool is further fixed by the cooperation of the first matching block, the spring, the second matching block and the movable component, thereby ensuring a better fixing effect. At the same time, it can also change the hard contact into elastic buffering, thereby reducing the deformation of the tool and the fixing clamp.

[0017] By setting up the support bar, the entire tool can be supported by the support bar during the initial fixation. The pressure of the tool is determined by the pressure sensor inside the support bar. When the pressure changes by more than a certain value compared to the installation, the prompt light inside the prompt ring lights up to prompt the operator to replace it, which effectively reduces the workload of the staff and the prompt is more accurate.

[0018] The tool changing mechanism is supported by a fixed block fixed at the bottom thereof, and the tool is cleaned when the tool is changed through cooperation between the second disc, the cleaning column and the third gear set, thereby ensuring a better working effect, and the cleaning column is driven to rotate along the surface of the lower end of the tool under the action of the fourth motor, thereby achieving a better cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the first gear set of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the second gear set of the present invention;

[0022] Figure 4 This is a structural separation diagram of the second matching block of the present invention;

[0023] Figure 5 This is a structural schematic diagram of the support bar of the present invention;

[0024] Figure 6 It is a front view of the present invention;

[0025] Figure 7 This is a structural schematic diagram of the fixing block of the present invention;

[0026] Figure 8 This is a structural separation diagram of the third gear set of the present invention.

[0027] In the figure:

[0028] 1 is a protective shell; 2 is a reminder ring; 3 is a tool; 4 is a fixing clip; 5 is a semicircular block; 6 is a first gear set; 7 is a support bar; 8 is a limit block; 9 is a rack; 10 is a second gear set; 11 is a first matching block; 12 is a spring; 13 is a second matching block; 14 is a movable component; 15 is a tool changing mechanism; 16 is a fixing block; 17 is a first disc; 18 is a second disc; 19 is a cleaning column; 20 is a third gear set. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] Embodiment 1:

[0031] like Figures 1 to 8As shown, in the embodiment of the present invention, a tool magazine for a vertical machining center for producing mechanical parts includes a protective shell 1 and a tool 3. A reminder ring 2 is provided in the middle of the protective shell 1. A fixing clamp 4 is movably connected to the upper end of the tool 3. A semicircular block 5 is movably sleeved on the right end of the fixing clamp 4. A first gear set 6 is meshed on the right side of the semicircular block 5. A support bar 7 is fixedly installed on the top of the fixing clamp 4. The front and rear ends of the semicircular block 5 are movably sleeved on the limiting blocks 8. A rack 9 is fixedly installed on the right side of the fixing clamp 4. A second gear set 10 is meshed on the inner side of the rack 9. The left end of the fixing clamp 4 is fixedly installed A first matching block 11, a spring 12 is fixedly installed at the rear end of the inner cavity of the first matching block 11, a second matching block 13 is fixedly connected to the front end of the spring 12, a movable component 14 is arranged on the right side of the second matching block 13, and a prompt light is arranged inside the prompt ring 2, the number of the prompt lights is the same as the number of the tools, and the positions of the prompt lights and the tools correspond. Through this structure, the prompt light can be used to prompt when the tool is greatly worn, reminding the operator to replace the tool, which can effectively save the operator's inspection time and can conveniently locate the worn tool.

[0032] like Figure 1 As shown, a tool changing mechanism 15 is provided at the right end of the bottom of the protective housing 1, a fixed block 16 is fixedly installed at the bottom of the tool changing mechanism 15, a first disc 17 is fixedly installed on the left side of the fixed block 16, a second disc 18 is movably connected to the top of the first disc 17, a cleaning column 19 is movably sleeved on the top of the second disc 18, and a third gear set 20 is meshed at the lower end of the cleaning column 19.

[0033] And the first gear set 6 is composed of a first gear and a first motor. A tooth block is arranged at the right end of the semicircular block 5. Cylindrical blocks are arranged at the front and rear ends of the semicircular block 5. The cylindrical block is movably connected with the limit block 8. Through this structure, the first motor can drive the first gear to make the semicircular block 5 rotate ninety degrees counterclockwise, so that the tool is parallel to the protective shell 1, saving space.

[0034] like Figure 2 As shown, there are two fixing clips 4, which are located at the front and rear sides of the tool 3, and there are two racks 9, which are respectively installed at the upper end of the right side of one fixing clip 4 and the lower end of the right side of the other fixing clip 4. The second gear set 10 is composed of a second gear and a second motor, and the second gear is meshed with the two racks 9. The second motor is fixedly installed on the right side of the first gear. A rubber layer is provided on the inner side of the fixing clip 4. Through this structure, the distance between the two fixing clips 4 can be enlarged when the tool is disassembled and assembled, so that the tool 3 can pass through, and the tool 3 can also be tightened to fix it when it passes through. The provided rubber layer can provide a certain buffering effect to ensure that there will be no hard contact when fixing, thereby forming protection.

[0035] The third gear set 20 is composed of a third gear and a third motor. A fourth gear is arranged at the bottom of the cleaning column 19, and the third gear is meshed with the fourth gear. A fourth motor is fixedly installed at the bottom of the second disc 18. A brush is arranged on the surface of the cleaning column 19. The fourth motor is fixedly installed inside the first disc 17, and the third motor is fixedly installed inside the second disc 18. Through this structure, the tool 3 can be cleaned when changing the tool to ensure that the tool 3 is clean, and the second disc 18 is driven to rotate by the fourth motor to make the cleaning of the tool 3 more thorough.

[0036] In the specific tool changing process, when the old tool is located at the left end of the tool changing mechanism 15, the third motor and the fourth motor are started synchronously, the third motor drives the two cleaning columns 19 to rotate, and the fourth motor drives the second disc 18 to rotate to clean the lower end of the tool 3;

[0037] After cleaning is completed, the second gear set 10 starts to drive the two fixing clamps 4 to separate and leave space, and then the tool changing mechanism 15 moves upward to send the tool 3 to the middle of the two fixing clamps 4, and then the second gear set 10 drives the two fixing clamps 4 to return to their original state, and the tool changing mechanism 15 releases the fixation of the tool 3. At this time, the tool 3 is in direct contact with the support bar 7 and the pressure sensor inside the support bar 7 measures the tool 3. When the pressure value differs from that during installation by more than a certain value, the prompt light inside the prompt ring 2 lights up to remind the staff that the tool needs to be replaced. When the pressure value difference is within a certain range, the movable component 14 starts to drive the second matching block 13 to pressurize and limit the tool 3 to ensure better stability. Finally, the first gear set 6 drives the tool 3, the fixing clamp 4 and the semicircular block 5 and other structures to rotate counterclockwise to make the tool 3 parallel to the protective shell 1 to achieve a better storage effect.

[0038] Embodiment 2:

[0039] Compared with Example 1, Figure 3 As shown, in this embodiment, a pressure sensor is arranged inside the support bar 7, the number of the support bars 7 is two and the two support bars 7 form a U-shape, and the pressure sensor is electrically connected to the indicator light. Through this structure, the change in weight of the tool can be obtained by judging the pressure of the tool after the tool is changed, so as to judge the degree of wear. This method can accurately obtain the change in tool weight. When the weight changes to a certain extent, the indicator light comes on and the tool can be replaced, which saves effort and time.

[0040] The movable component 14 is composed of a telescopic rod and a trapezoidal block. A cut corner is set on the right side of the front of the second matching block 13, and a rectangular block is set on the left side of the front of the second matching block 13. The spring 12 is fixedly connected to the rear of the rectangular block. The left end of the second matching block 13 is provided with an arc consistent with the curvature of the surface of the tool 3. Through this structure, the telescopic rod can drive the trapezoidal block to move and squeeze the second matching block 13 to make it move to the left to fix the tool 3. It can also be restored under the action of the spring 12 after the fixation is cancelled.

[0041] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A tool magazine for a vertical machining center for producing mechanical parts, comprising a protective housing (1) and a tool (3), characterized in that: A prompt ring (2) is provided in the middle of the protective shell (1); a fixing clamp (4) is movably clamped on the upper end of the tool (3); a semicircular block (5) is movably sleeved on the right end of the fixing clamp (4); a first gear set (6) is meshed on the right side of the semicircular block (5); a support bar (7) is fixedly installed on the top of the fixing clamp (4); a limit block (8) is movably sleeved on the front and rear ends of the semicircular block (5); a rack (9) is fixedly installed on the right side of the fixing clamp (4); a second gear set (10) is meshed on the inner side of the rack (9); a first matching block (11) is fixedly installed on the left end of the fixing clamp (4); a spring (12) is fixedly installed on the rear end of the inner cavity of the first matching block (11); a second matching block (13) is fixedly connected to the front end of the spring (12); a movable component (14) is provided on the right side of the second matching block (13); A pressure sensor is arranged inside the support bar (7), the number of the support bars (7) is two and the two support bars (7) form a U shape, and the pressure sensor is electrically connected to the warning light; The first gear set (6) is composed of a first gear and a first motor, a gear block is arranged at the right end of the semicircular block (5), and cylindrical blocks are arranged at the front and rear ends of the semicircular block (5), and the cylindrical blocks are movably connected with the limit blocks (8); There are two fixing clips (4), the two fixing clips (4) are located at the front and rear sides of the tool (3), there are two racks (9), the two racks (9) are respectively mounted on the upper end of the right side of one fixing clip (4) and the lower end of the right side of the other fixing clip (4), the second gear set (10) is composed of a second gear and a second motor, the second gear is meshed with the two racks (9), the second motor is fixedly mounted on the right side of the first gear, and a rubber layer is provided on the inner side of the fixing clip (4); The movable component (14) is composed of a telescopic rod and a trapezoidal block, a cutting angle is arranged on the right side of the front part of the second matching block (13), a rectangular block is arranged on the left side of the front part of the second matching block (13), the spring (12) is fixedly connected to the rear part of the rectangular block, and a circular arc is arranged on the left end of the second matching block (13) in accordance with the curvature of the surface of the tool (3).

2. A tool magazine for a vertical machining center for producing mechanical parts according to claim 1, characterized in that: A tool changing mechanism (15) is provided at the right end of the bottom of the protective housing (1); a fixed block (16) is fixedly mounted on the bottom of the tool changing mechanism (15); a first disc (17) is fixedly mounted on the left side of the fixed block (16); a second disc (18) is movably connected to the top of the first disc (17); a cleaning column (19) is movably sleeved on the top of the second disc (18); and a third gear set (20) is meshed at the lower end of the cleaning column (19).

3. A tool magazine for a vertical machining center for producing mechanical parts according to claim 1, characterized in that: The prompt ring (2) is provided with prompt lights inside, the number of the prompt lights is the same as the number of the cutting tools (3), and the positions of the prompt lights correspond to those of the cutting tools (3).

4. A tool magazine for a vertical machining center for producing mechanical parts according to claim 2, characterized in that: The third gear set (20) is composed of a third gear and a third motor. A fourth gear is arranged at the bottom of the cleaning column (19), and the third gear meshes with the fourth gear. A fourth motor is fixedly mounted at the bottom of the second disc (18). A brush is arranged on the surface of the cleaning column (19). The fourth motor is fixedly mounted inside the first disc (17), and the third motor is fixedly mounted inside the second disc (18).

Images