Rack machining numerical control grinding machine capable of adjusting grinding thickness

Abstract

The utility model discloses a rack machining numerical control grinding machine capable of adjusting grinding thickness. The rack machining numerical control grinding machine comprises a control mechanism. The machining table is arranged on one side of the control mechanism; the milling cutter is connected to the middle of the side, close to the machining table, of the control mechanism. A plurality of grinding blocks are arranged on the two sides of the milling cutter, connecting plates are connected to the sides, close to the milling cutter, of the corresponding grinding blocks, the connecting plates are located in the milling cutter, an annular plate is connected to the middle in the milling cutter, and a plurality of springs arranged in a circumferential array mode are connected between the connecting plates and the annular plate; the grinding block can be pulled into the milling cutter under the cooperation of the spring, the abutting block abuts against the connecting plate all the time, the purpose of thinning the grinding thickness is achieved, after the position of the grinding block is adjusted, the worm gear and the worm can be self-locked, and the situation that in the grinding process, the position of the grinding block moves, and normal grinding work is affected is prevented; the problem that the milling cutter is complex to replace is solved, rack materials can be machined according to different size requirements, and adaptability is improved.

Description

Technical Field

[0001] This utility model belongs to the field of rack machining technology, specifically, it relates to a CNC grinding machine for rack machining with adjustable grinding thickness. Background Technology

[0002] The rack grinding CNC grinder is a professional machine tool integrating high-precision CNC technology, specifically designed for rack machining. This machine tool utilizes a precision grinding process and a CNC system to accurately control the grinding process, achieving high-precision machining of the rack surface.

[0003] In current technologies, when grinding racks, the required rack dimensions often vary depending on the application scenario. Therefore, it is necessary to adjust the grinding thickness according to the specific rack dimensions to ensure the final machining accuracy and product quality. A common way to adjust the grinding thickness is to change the milling cutter of different specifications to grind racks of different sizes.

[0004] While the above method can adjust the grinding thickness, it is troublesome to replace the milling cutter due to its weight, and it requires purchasing milling cutters of various specifications, which increases production costs. Utility Model Content

[0005] To solve the technical problem of not being able to adjust the grinding thickness, this utility model provides a CNC grinding machine for rack machining with adjustable grinding thickness.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A CNC grinding machine for gear rack machining with adjustable grinding thickness includes a control mechanism; a machining table disposed on one side of the control mechanism; a milling cutter connected to the middle of the side of the control mechanism near the machining table; multiple grinding blocks are disposed on both sides of the milling cutter, and a connecting plate is connected to the side of each grinding block near the milling cutter. The connecting plate is located inside the milling cutter, and an annular plate is connected to the middle of the milling cutter. Multiple springs arranged in a circular array are connected between the connecting plate and the annular plate; a first rotating rod is disposed in the middle of the milling cutter, and both ends of the first rotating rod are connected to the annular plate through bearings. One end of the first rotating rod passes through the annular plate and is connected to an adjusting block; a worm gear is connected to the middle of the first rotating rod, and symmetrically arranged worm wheels mesh with the outer side of the worm gear. A second rotating rod is connected to the middle of each of the two worm wheels. The second rotating rod is rotatably connected inside the milling cutter, and symmetrically arranged abutments are connected to the outer side of the second rotating rod. The abutments are tightened with the grinding blocks.

[0008] Preferably, the worm gears are positioned on opposite sides of the annular plate.

[0009] Preferably, the grinding blocks are set at equal angles on both sides of the milling cutter.

[0010] Preferably, grooves are provided on both sides of the milling cutter corresponding to the positions of the grinding blocks, and the grinding blocks are slidably connected in the grooves.

[0011] Preferably, the outer side of the connecting plate is connected to a plurality of positioning blocks arranged in a circular array, and a first slide rail is connected between the connecting plate and the annular plate at the position corresponding to the positioning block, and the positioning block is slidably connected in the first slide rail.

[0012] Preferably, the second rotating rod is positioned away from the spring and the first slide rail.

[0013] Preferably, a pull rod is connected to the middle of one end of the abutment block near the connecting plate, and the connecting plate is connected to the two ends of the pull rod by symmetrically arranged second slide rails, and the pull rod is slidably connected in the second slide rails.

[0014] Preferably, a stabilizing rod is connected to the middle of the side of the milling cutter away from the control mechanism, and a positioning rod is connected above the control mechanism on the side closer to the milling cutter, corresponding to the position of the stabilizing rod. A positioning plate is connected to the end of the positioning rod away from the control mechanism, and the stabilizing rod is rotatably connected inside the positioning plate.

[0015] The beneficial effects of this utility model are:

[0016] When adjusting the grinding thickness, the operator inserts a screwdriver into the adjusting block and rotates it clockwise. The screwdriver's rotation drives the first rotating rod, which in turn drives the worm gear. The worm gear, in conjunction with the worm wheel, drives the second rotating rod and the abutment block. The end of the abutment block that abuts against the connecting plate rotates away from the center of the milling cutter, pushing the grinding block outwards. During this pushing process, the grinding block pulls a spring, creating a tension force. This prevents the grinding block from moving further outwards after the position adjustment is complete, thus achieving the purpose of adjusting the grinding thickness. During the thinning process, the operator inserts a screwdriver into the adjusting block and rotates it counterclockwise. With the cooperation of the first rotating rod, worm gear, worm wheel, and second rotating rod, the end of the abutment block that presses against the connecting plate rotates towards the center of the milling cutter. With the help of a spring, the grinding block is pulled into the milling cutter, ensuring the abutment block remains firmly against the connecting plate, thus achieving the purpose of thinning the grinding thickness. Furthermore, after the grinding block's position is adjusted, the worm wheel and worm gear self-lock to prevent the grinding block from moving during grinding, which would affect normal grinding operations. This solves the problem of complex milling cutter replacement and allows for the processing of rack materials according to different dimensional requirements, improving adaptability.

[0017] If the spring is damaged, the pull rod, in conjunction with the second slide rail, will push or pull the second slide rail during the rotation of the abutment block to adjust the position of the grinding block. Furthermore, during the grinding process, since the pull rod is slidably connected within the second slide rail, the pull rod and the second slide rail will limit the position of the connecting plate and the grinding block, preventing the grinding block from moving freely within the groove, thus achieving the purpose of adjusting the grinding thickness. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of a CNC grinding machine for gear rack machining with adjustable grinding thickness according to the present invention.

[0020] Figure 2 This is a cross-sectional view of a CNC grinder for adjusting the grinding thickness of a rack according to the present invention.

[0021] Figure 3 This is a cross-sectional front view of a CNC grinding machine for gear rack machining with adjustable grinding thickness according to the present invention.

[0022] Figure 4 This is a perspective view of a milling cutter in a CNC grinding machine for gear rack machining with adjustable grinding thickness, according to the present invention.

[0023] Figure 5 This is a perspective view of the grinding block in a CNC grinding machine for gear rack machining with adjustable grinding thickness, according to the present invention.

[0024] Figure 6 This is a perspective view of the worm gear in a CNC grinding machine for gear rack machining with adjustable grinding thickness according to this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Control mechanism; 2. Machining table; 3. Milling cutter;

[0027] 31. Grinding block; 311. Slide groove; 312. Connecting plate; 313. Positioning block; 314. First slide rail; 32. Annular plate; 33. Spring; 34. First rotating rod; 341. Adjusting block; 342. Worm gear; 343. Worm; 344. Second rotating rod; 345. Abutment block; 346. Pull rod; 347. Second slide rail; 35. Stabilizing rod; 36. Positioning rod; 37. Positioning plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1 - Figure 6 As shown, a CNC grinding machine for rack machining with adjustable grinding thickness includes a control mechanism 1 for driving the milling cutter 3 to rotate.

[0030] A processing table 2 is provided on one side of the control mechanism 1 for conveying rack material.

[0031] The control mechanism 1 is connected to a milling cutter 3 in the middle of the side near the machining table 2. The milling cutter 3 is used for the roughing stage of the rack. It grinds the rack material by high-speed rotation to remove most of the excess material, laying the foundation for subsequent finishing.

[0032] A stabilizing rod 35 is connected to the middle of the side of the milling cutter 3 away from the control mechanism 1. A positioning rod 36 is connected to the upper part of the control mechanism 1 near the milling cutter 3, corresponding to the position of the stabilizing rod 35. A positioning plate 37 is connected to the end of the positioning rod 36 away from the control mechanism 1. The stabilizing rod 35 is rotatably connected in the positioning plate 37. The stability of the milling cutter 3 can be improved by the cooperation of the stabilizing rod 35, the positioning rod 36 and the positioning plate 37.

[0033] Multiple grinding blocks 31 are provided on both sides of the milling cutter 3. The grinding blocks 31 are used to achieve precision machining and can grind according to a predetermined shape and size during the grinding process.

[0034] The grinding blocks 31 are set at equal angles on both sides of the milling cutter 3. This arrangement can improve grinding efficiency and enable uniform grinding of the rack material, thereby improving grinding quality.

[0035] The milling cutter 3 has grooves 311 on both sides corresponding to the position of the grinding block 31. The grinding block 31 is slidably connected in the grooves 311. The grooves 311 are used to limit the position of the grinding block 31 and enable the grinding block 31 to slide in the milling cutter 3, thereby adjusting the grinding thickness.

[0036] Each grinding block 31 is connected to a connecting plate 312 on the side near the milling cutter 3. The connecting plate 312 is located inside the milling cutter 3. Through the cooperation of the connecting plate 312, the corresponding grinding blocks 31 can be connected together, so that they can move synchronously when the position of the grinding blocks 31 is adjusted in the future.

[0037] The milling cutter 3 has an annular plate 32 connected to its inner center. The annular plate 32 is used to connect the spring 33 and to position the first rotating rod 34.

[0038] Multiple positioning blocks 313 arranged in a circular array are connected to the outer side of the connecting plate 312. A first slide rail 314 is connected between the connecting plate 312 and the annular plate 32 at the position corresponding to the positioning block 313. The positioning block 313 is slidably connected in the first slide rail 314. The positioning block 313 cooperates with the first slide rail 314 to enhance the stability of the connecting plate 312 and the grinding block 31.

[0039] A plurality of springs 33 arranged in a circular array are connected between the connecting plate 312 and the annular plate 32. The springs 33 are used to reset the connecting plate 312 and the grinding block 31.

[0040] The milling cutter 3 has a first rotating rod 34 in the middle. The two ends of the first rotating rod 34 are connected to the annular plate 32 through bearings. By rotating the first rotating rod 34, the position of the grinding blocks 31 on both sides of the milling cutter 3 can be adjusted.

[0041] One end of the first rotating rod 34 passes through the annular plate 32 and is connected to the adjusting block 341. The adjusting block 341 is rotatably connected inside the milling cutter 3. By using a screwdriver in conjunction with the adjusting block 341, the first rotating rod 34 can be rotated, thereby adjusting the position of the grinding block 31.

[0042] The first rotating rod 34 is connected to a worm gear 343 in the middle, which is used to assist in adjusting the position of the grinding block 31.

[0043] The worm 343 has symmetrically arranged worm wheels 342 meshing on its outer side. When the worm 343 rotates, it drives the worm wheels 342 to rotate. The worm wheels 342 and the worm 343 have a self-locking function. After the first rotating rod 34 stops rotating, the worm wheels 342 and the worm 343 will self-lock to prevent the position of the grinding block 31 from moving during the processing of the gear material.

[0044] The worm gear 342 is positioned on both sides of the annular plate 32. This arrangement ensures that the worm 343 and the worm gear 342 can properly adjust the position of the grinding block 31 after they are engaged.

[0045] A second rotating rod 344 is connected to the middle of each of the two worm gears 342. The second rotating rod 344 is rotatably connected inside the milling cutter 3 and is used to limit the position of the worm gears 342.

[0046] The second rotating rod 344 is positioned away from the spring 33 and the first slide rail 314. This arrangement avoids mutual interference between the second rotating rod 344, the spring 33, and the first slide rail 314.

[0047] The second rotating rod 344 is connected to symmetrically arranged abutment blocks 345 on its outer side. The abutment blocks 345 are tightly engaged with the grinding block 31. By rotating the abutment blocks 345, the position of the grinding block 31 can be adjusted.

[0048] In practical use, when it is necessary to adjust the grinding thickness, the operator inserts a screwdriver into the adjusting block 341 and rotates the screwdriver clockwise. The rotation of the screwdriver drives the first rotating rod 34 to rotate, which in turn drives the worm gear 343 to rotate. With the cooperation of the worm wheel 342, the worm gear 343 drives the second rotating rod 344 and the abutment block 345 to rotate. The end of the abutment block 345 that is pressed against the connecting plate 312 will rotate away from the middle of the milling cutter 3, so that the abutment block 345 pushes the grinding block 31 towards the outside of the milling cutter 3. During the process of being pushed, the grinding block 31 will pull the spring 33, so that the spring 33 will exert a pulling force on the grinding block 31. After the position of the grinding block 31 is adjusted, the grinding block 31 will not continue to move towards the outside of the milling cutter 3, thus achieving the purpose of adjusting the grinding thickness.

[0049] When the grinding thickness needs to be thinned, the operator inserts a screwdriver into the adjusting block 341 and rotates the screwdriver counterclockwise. With the cooperation of the first rotating rod 34, the worm 343, the worm wheel 342, and the second rotating rod 344, the end of the abutment block 345 that is pressed against the connecting plate 312 rotates towards the middle of the milling cutter 3. With the cooperation of the spring 33, the grinding block 31 is pulled into the milling cutter 3, so that the abutment block 345 is always pressed against the connecting plate 312, thus achieving the purpose of thinning the grinding thickness. After the position of the grinding block 31 is adjusted, the worm wheel 342 and the worm 343 will self-lock to prevent the position of the grinding block 31 from moving during the grinding process, which would affect the normal grinding work. This solves the problem of complicated replacement of the milling cutter 3, and allows the rack material to be processed according to different size requirements, improving adaptability.

[0050] A pull rod 346 is connected to the middle of one end of the abutment block 345 near the connecting plate 312. The connecting plate 312 is connected to the two ends of the pull rod 346 with symmetrically arranged second slide rails 347. The pull rod 346 is slidably connected in the second slide rail 347. The pull rod 346 is used to pull the connecting plate 312 and the grinding block 31 to adjust the position of the grinding block 31.

[0051] In practical use, if the spring 33 is damaged, the pull rod 346 cooperates with the second slide rail 347. During the rotation of the stop block 345, the pull rod 346 will push or pull the second slide rail 347 to adjust the position of the grinding block 31. During the grinding process, since the pull rod 346 is slidably connected in the second slide rail 347, the pull rod 346 and the second slide rail 347 will limit the position of the connecting plate 312 and the grinding block 31, preventing the grinding block 31 from moving freely in the slide groove 311, thus achieving the purpose of adjusting the grinding thickness.

[0052] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, all of which should fall within the protection scope of this utility model.

Claims

1. A CNC grinding machine for gear rack machining with adjustable grinding thickness, comprising a control mechanism (1); The processing table (2) is located on one side of the control mechanism (1); The milling cutter (3) is connected to the middle of the side of the control mechanism (1) near the machining table (2); Its features are: Multiple grinding blocks (31) are provided on both sides of the milling cutter (3). A connecting plate (312) is connected to the side of the grinding block (31) that is close to the milling cutter (3). The connecting plate (312) is located inside the milling cutter (3). An annular plate (32) is connected to the middle of the milling cutter (3). Multiple springs (33) arranged in a circular array are connected between the connecting plate (312) and the annular plate (32). The milling cutter (3) has a first rotating rod (34) in the middle. The two ends of the first rotating rod (34) are connected to the annular plate (32) through bearings. One end of the first rotating rod (34) passes through the annular plate (32) and is connected to the adjusting block (341). The first rotating rod (34) is connected to a worm (343) in the middle. A worm wheel (342) is meshed on the outside of the worm (343). A second rotating rod (344) is connected to the middle of each of the two worm wheels (342). The second rotating rod (344) is rotatably connected inside the milling cutter (3). A stop block (345) is connected on the outside of the second rotating rod (344). The stop block (345) is tightened with the grinding block (31).

2. The CNC grinding machine for adjustable grinding thickness of a gear rack according to claim 1, characterized in that: The worm gear (342) is correspondingly arranged on both sides of the annular plate (32).

3. The CNC grinding machine for adjustable grinding thickness of a gear rack according to claim 2, characterized in that: The grinding blocks (31) are arranged at equal angles on both sides of the milling cutter (3).

4. The CNC grinding machine for adjustable grinding thickness of a gear rack according to claim 3, characterized in that: The milling cutter (3) has grooves (311) on both sides corresponding to the positions of the grinding block (31), and the grinding block (31) is slidably connected in the grooves (311).

5. The CNC grinding machine for adjustable grinding thickness of a gear rack according to claim 4, characterized in that: The connecting plate (312) is connected to a plurality of positioning blocks (313) arranged in a circular array on the outside. A first slide rail (314) is connected between the connecting plate (312) and the annular plate (32) at the position corresponding to the positioning block (313). The positioning block (313) is slidably connected in the first slide rail (314).

6. The CNC grinding machine for adjustable grinding thickness of a gear rack according to claim 5, characterized in that: The second rotating rod (344) is positioned away from the spring (33) and the first slide rail (314).

7. The CNC grinding machine for adjustable grinding thickness of a rack as described in claim 6, characterized in that: The abutment (345) is connected to a pull rod (346) at the middle of one end near the connecting plate (312). The connecting plate (312) is connected to two symmetrically arranged second slide rails (347) at the two ends of the pull rod (346). The pull rod (346) is slidably connected in the second slide rail (347).

8. The CNC grinding machine for adjustable grinding thickness of a gear rack according to claim 7, characterized in that: A stabilizing rod (35) is connected to the middle of the side of the milling cutter (3) away from the control mechanism (1). A positioning rod (36) is connected above the side of the control mechanism (1) close to the milling cutter (3) at the position corresponding to the stabilizing rod (35). A positioning plate (37) is connected to the end of the positioning rod (36) away from the control mechanism (1). The stabilizing rod (35) is rotatably connected inside the positioning plate (37).

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