Workpiece outer diameter milling positioning mechanism

Abstract

The invention discloses a workpiece outer diameter milling and positioning mechanism which is characterized in that a tolerance dimension core rod is matched through auxiliary machining, workpieces with machined inner holes are laminated and positioned, a plurality of workpieces are fixed on the core rod at the same time, one end of the core rod is clamped and fixed through a dividing head, and the other end of the core rod is rotationally connected with a tailstock tip; therefore, the main shaft power milling cutter head on one side can be used for simultaneously carrying out groove milling processing on the outer diameters of a plurality of workpieces, one-time positioning processing on the plurality of workpieces is realized, the processing efficiency is improved by several times, the grooves of the outer diameters of the plurality of workpieces are milled by one cutter, the precision size consistency of the grooves of the workpieces is high, the yield is high, the cost is saved, and the production efficiency is improved. And when the groove milling of one position of the workpiece which is laminated and positioned on the core rod is completed, the core rod can be directly driven by the dividing head to rotate by an angle, so that the groove milling of the other position of the workpiece is carried out, convenience and rapidness are realized, and the processing efficiency is further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of glass precision carving and relates to a glass milling device, in particular to a workpiece outer diameter milling positioning mechanism. Background Art

[0002] At present, the processing technology of mobile phone glass workpieces is relatively complicated. Usually, its processing procedures include front-end white sheet cutting, rough grinding, fine carving, etc. Among them, fine carving is the use of a rotating spindle to mill the processing material into the required shape or pattern. In the glass panel industry, special fine carving processing equipment is required to perform fine carving operations on the workpiece during the fine carving process.

[0003] Most of the precision engraving equipment on the market is not convenient for positioning and clamping the workpiece. Figure 1 As shown, a single workpiece 10 is directly clamped by a dividing head 2 installed on a milling machine 1, and then a groove is milled on the outer diameter of the workpiece 10 by a spindle power milling cutter head 3 on one side. Each workpiece requires separate clamping and positioning, and the positioning and clamping operation is cumbersome and inconvenient to use, resulting in low processing efficiency and high cost. In addition, due to the clamping position and angle deviation of multiple workpieces, it is easy to cause poor consistency in the size of the processed grooves, resulting in unsatisfactory processing effect. Summary of the invention

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes a workpiece outer diameter milling positioning mechanism, which can realize one-time positioning and one-cut milling of multiple workpieces, has high processing efficiency, high groove size consistency, and saves costs.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A workpiece outer diameter milling positioning mechanism is used to position multiple workpiece stacks, wherein the middle part of the workpiece is processed with an inner hole, and comprises: a dividing head, a core rod and a tailstock top. The dividing head is rotatably installed on a milling machine, one end of the core rod is clamped and fixed by the dividing head, and the other end is rotatably connected to the tailstock top. The core rod is adapted to the inner hole of the workpiece, and the core rod is adapted to be inserted into the inner holes of multiple workpieces in turn to position the multiple workpiece stacks between the dividing head and the tailstock top, so that the multiple workpiece outer diameter grooves can be milled by a spindle power milling cutter head.

[0007] Furthermore, a positioning nut is threadedly connected to the core rod to position the stack on the core rod. A plurality of workpieces are clamped and fixed between the dividing head and the positioning nut.

[0008] Furthermore, a first gasket and a second gasket are respectively sleeved on both ends of the core rod, the first gasket is arranged between the workpiece and the dividing head, and the second gasket is arranged between the workpiece and the positioning nut.

[0009] Furthermore, a first friction plate, a second friction plate and multiple third friction plates are sleeved on the core rod, the first friction plate is arranged between the workpiece and the first gasket, the second friction plate is arranged between the workpiece and the second gasket, and the multiple third friction plates are arranged in sequence between the multiple workpieces, and a third friction plate is arranged between any two adjacent workpieces.

[0010] Furthermore, the first gasket and the second gasket are metal gaskets of the same size, and the first friction plate, the second friction plate and the third friction plate are wear-resistant rubber plates of the same size.

[0011] Furthermore, the diameter of the first gasket is larger than the diameter of the positioning nut and smaller than the diameter of the workpiece, and the diameter of the first friction plate is smaller than the diameter of the first gasket.

[0012] Furthermore, the dividing head includes: a chuck and multiple jaws, the chuck is rotatably connected to the milling machine, the chuck is provided with multiple slide grooves, the multiple jaws are respectively slidably connected in the multiple slide grooves, and the multiple jaws are driven by a cylinder to slide along the multiple slide grooves toward the center of the chuck to clamp and fix the core rod.

[0013] Furthermore, the clamping surface of the claw is provided with positioning holes, and the end of the mandrel is provided with multiple positioning columns adapted to the multiple positioning holes. When the end of the mandrel is clamped and fixed between the multiple claws, the multiple positioning columns on the mandrel are respectively adapted to be inserted into the positioning holes of the multiple claws.

[0014] Furthermore, a rotation hole adapted to the ejector pin of the tailstock top is provided on the end surface of one end of the core rod, and the ejector pin of the tailstock top is adapted to be inserted into the rotation hole and rotatably connected to the core rod.

[0015] The beneficial effects of the present invention are as follows: the workpiece outer diameter milling positioning mechanism provided in the present application utilizes an auxiliary processing matching tolerance size mandrel to perform stacking positioning on the workpiece with the inner hole processed, and multiple workpieces are fixed on the mandrel at the same time, and one end of the mandrel is clamped and fixed by a dividing head, and the other end is rotatably connected to the tailstock top, so that groove milling processing can be performed on the outer diameters of multiple workpieces at the same time through the spindle power milling cutter head on one side, thereby realizing one-time positioning processing of multiple workpieces, improving the processing efficiency by several times, and the grooves of the outer diameters of multiple workpieces are milled with one cutter, the precision dimensional consistency of the workpiece grooves is high, the yield rate is high, and the cost is saved, and when the workpiece with the stack positioned on the mandrel completes the groove milling processing at one position, the mandrel can be directly driven by the dividing head to rotate an angle to perform groove milling processing on another position of the workpiece, which is convenient and quick, and further improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of clamping a workpiece in the prior art.

[0017] Figure 2 It is a structural schematic diagram of the present invention.

[0018] Figure 3 For the present invention Figure 2 A local enlarged schematic diagram of point A in the middle.

[0019] Figure 4 For the present invention Figure 2 A local enlarged schematic diagram of point B in the middle.

[0020] Figure 5 For the present invention Figure 2 A partial enlarged schematic diagram of point C in the middle.

[0021] Figure 6 It is a structural schematic diagram of the dividing head of the present invention.

[0022] Figure 7 It is a schematic structural diagram of the clamping claw of the present invention.

[0023] Figure 8 It is a structural schematic diagram of the core rod of the present invention. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 2 As shown, the present invention provides a workpiece outer diameter milling positioning mechanism for positioning a plurality of workpiece 10 stacks, wherein the workpiece 10 is processed with an inner hole in the middle, and the positioning mechanism specifically comprises: a dividing head 2, a core rod 4 and a tailstock center 5, wherein the dividing head 2 is rotatably mounted on the milling machine 1, one end of the core rod 4 is clamped and fixed by the dividing head 2, and the other end is rotatably connected to the tailstock center 5, the core rod 4 is adapted to the inner hole of the workpiece 10, and the core rod 4 is adapted to be inserted into the inner holes of a plurality of workpieces 10 in turn to position a plurality of workpiece 10 stacks between the dividing head 2 and the tailstock center 5, ten workpiece 10 stacks can be positioned at the same time, and groove milling processing can be performed on the outer diameters of the ten workpieces 10 at the same time through the spindle power milling cutter head 3, thereby improving the processing efficiency by 10 times, and because the grooves of the outer diameters of the ten workpieces 10 are milled by one cutter, the precision dimensional consistency of the grooves of the workpiece 10 is high, the yield rate is high, and the cost is saved.

[0026] like Figure 3-5As shown, a positioning nut 41 is threadedly connected to the mandrel 4 to position the stack on the mandrel 4. Multiple workpieces 10 are clamped and fixed between the dividing head 2 and the positioning nut 41. The fixing is simple, convenient, and has a good fixing effect. The first gasket 42 and the second gasket 43 are respectively sleeved at both ends of the mandrel 4. The first gasket 42 is arranged between the workpiece 10 and the dividing head 2, and the second gasket 43 is arranged between the workpiece 10 and the positioning nut 41. When the positioning nut 41 is tightened, the two ends of the workpiece 10 are protected from being compressed and deformed by the dividing head 2 and the positioning nut 41.

[0027] The mandrel 4 is sleeved with a first friction plate 44, a second friction plate 45 and a plurality of third friction plates 46. The first friction plate 44 is arranged between the workpiece 10 and the first gasket 42, the second friction plate 45 is arranged between the workpiece 10 and the second gasket 43, and the plurality of third friction plates 46 are arranged in sequence between the plurality of workpieces 10. A third friction plate 46 is arranged between any two adjacent workpieces 10. By arranging the third friction plate 46 between adjacent workpieces 10, the workpieces 10 will not interfere with each other when the stacks are positioned, and the friction between the adjacent workpieces 10 is increased, so that the adjacent workpieces 10 are prevented from rotating relative to each other, so that the workpieces 10 with the stacks positioned on the mandrel 4 are formed into a whole for milling processing. By arranging the first friction plate 44 and the second friction plate 45 between the workpiece 10 and the first gasket 42 and the second gasket 43, respectively, the workpieces 10 with the stacks positioned on the mandrel 4 are prevented from rotating as a whole, and thus during the milling process of the spindle power milling cutter head 3, the problem of deviation of the groove processing position caused by the rotation of the workpiece 10 is avoided.

[0028] The first gasket 42 and the second gasket 43 are metal gaskets of the same size, and the first friction plate 44, the second friction plate 45 and the third friction plate 46 are wear-resistant rubber plates of the same size. The diameter of the first gasket 42 is larger than the diameter of the positioning nut 41 and smaller than the diameter of the workpiece 10, and the diameter of the first friction plate 44 is smaller than the diameter of the first gasket 42.

[0029] like Figure 6-7As shown, the dividing head 2 includes: a chuck 21 and four claws 22. The chuck 21 is rotatably connected to the milling machine 1. The chuck 21 is provided with four slide grooves 23 extending from the center to the circumference. The four claws 22 are respectively slidably connected in the four slide grooves 23. The four claws 22 are driven by a cylinder to slide along the four slide grooves 23 toward the center of the chuck 21 to clamp and fix the core rod 4. A positioning hole 24 is provided on the clamping surface of the claw 22, and four positioning columns 47 matched with the four positioning holes 24 are provided at the end of the core rod 4. When the end of the core rod 4 is clamped and fixed between the four claws 22, the four positioning columns 47 on the core rod 4 are respectively adapted to be inserted into the positioning holes 24 of the four claws 22 to prevent the core rod 4 from rotating relative to the dividing head 2, and the dividing head 2 can be driven by a motor to drive the core rod 4 to rotate. When the workpiece 10 with the stack positioned on the core rod 4 completes the groove milling processing at one position, the core rod 4 can be directly driven by the dividing head 2 to rotate an angle to perform groove milling processing on another position of the workpiece 10, which is convenient and quick, and further improves the processing efficiency.

[0030] like Figure 8 As shown, a rotation hole 48 adapted to the ejector pin of the tailstock top 5 is provided on the end surface of one end of the core rod 4, and the ejector pin of the tailstock top 5 is adapted to be inserted into the rotation hole 48 and rotatably connected to the core rod 4.

[0031] When the workpiece outer diameter milling positioning mechanism provided by the present application is used, first, one end of the mandrel 4 is clamped and fixed by the four claws 22 of the indexing head 2, and the first gasket 42 and the first friction plate 44 are respectively put on the mandrel 4 from the other end of the mandrel 4 in sequence, and then multiple workpieces 10 and multiple third friction plates 46 are installed on the mandrel 4 at intervals, and then the second friction plate 45 and the second gasket 43 are put on the mandrel 4 in sequence, and the positioning nut 41 is tightened to clamp and fix the multiple workpieces 10 between the indexing head 2 and the positioning nut 41, and finally the other end of the mandrel 4 is rotated and connected to the tailstock top 5 to complete the stacking positioning of the multiple workpieces 10. During processing, only one side of the spindle power milling cutter head 3 needs to be started to simultaneously perform groove milling on the outer diameters of multiple workpieces 10, and when the workpiece 10 with the stack positioned on the mandrel 4 completes the groove milling of one position, the mandrel 4 is directly driven by the indexing head 2 to rotate an angle, and the groove milling of another position of the workpiece 10 can be performed.

[0032] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A workpiece outer diameter milling positioning mechanism, used for positioning a plurality of workpieces (10) stacked, wherein the workpieces (10) are machined with inner holes in the middle, It is characterized in that include: The invention comprises a dividing head (2), a core rod (4) and a tailstock top (5), wherein the dividing head (2) is rotatably mounted on a milling machine (1), one end of the core rod (4) is clamped and fixed by the dividing head (2), and the other end is rotatably connected to the tailstock top (5), the core rod (4) is adapted to the inner hole of a workpiece (10), the core rod (4) is adapted to be inserted into the inner holes of a plurality of workpieces (10) in sequence, and a plurality of workpiece (10) stacks are positioned between the dividing head (2) and the tailstock top (5), so that the outer diameter grooves of the plurality of workpieces (10) are milled by a spindle power milling cutter head (3) in one cut.

2. The positioning mechanism according to claim 1, It is characterized in that A positioning nut (41) is threadedly connected to the core rod (4) to position the laminate on the core rod (4). A plurality of workpieces (10) are clamped and fixed between the dividing head (2) and the positioning nut (41).

3. The positioning mechanism according to claim 2, It is characterized in that A first gasket (42) and a second gasket (43) are respectively sleeved on both ends of the core rod (4); the first gasket (42) is arranged between the workpiece (10) and the dividing head (2); and the second gasket (43) is arranged between the workpiece (10) and the positioning nut (41).

4. The positioning mechanism according to claim 3, It is characterized in that A first friction plate (44), a second friction plate (45) and a plurality of third friction plates (46) are sleeved on the core rod (4); the first friction plate (44) is arranged between the workpiece (10) and the first gasket (42); the second friction plate (45) is arranged between the workpiece (10) and the second gasket (43); the plurality of third friction plates (46) are arranged in sequence between the plurality of workpieces (10); and a third friction plate (46) is arranged between any two adjacent workpieces (10).

5. The positioning mechanism according to claim 4, It is characterized in that The first gasket (42) and the second gasket (43) are metal gaskets of the same size, and the first friction plate (44), the second friction plate (45) and the third friction plate (46) are wear-resistant rubber plates of the same size.

6. The positioning mechanism according to claim 5, It is characterized in that The diameter of the first gasket (42) is larger than the diameter of the positioning nut (41) and smaller than the diameter of the workpiece (10), and the diameter of the first friction plate (44) is smaller than the diameter of the first gasket (42).

7. The positioning mechanism according to claim 1, It is characterized in that The dividing head (2) comprises: a chuck (21) and a plurality of claws (22); the chuck (21) is rotatably connected to the milling machine (1); a plurality of slide grooves (23) are provided on the chuck (21); the plurality of claws (22) are respectively slidably connected in the plurality of slide grooves (23); the plurality of claws (22) are respectively driven by an air cylinder to slide along the plurality of slide grooves (23) toward the center of the chuck (21) to clamp and fix the core rod (4).

8. The positioning mechanism according to claim 5, It is characterized in that The clamping surface of the clamping claw (22) is provided with a positioning hole (24), and the end of the mandrel (4) is provided with a plurality of positioning columns (47) adapted to the plurality of positioning holes (24). When the end of the mandrel (4) is clamped and fixed between the plurality of clamping claws (22), the plurality of positioning columns (47) on the mandrel (4) are adapted to be inserted into the positioning holes (24) of the plurality of clamping claws (22) respectively.

9. The positioning mechanism according to claim 1, It is characterized in that A rotating hole (48) adapted to the ejector pin of the tailstock top (5) is provided on the end surface of one end of the core rod (4), and the ejector pin of the tailstock top (5) is adapted to be inserted into the rotating hole (48) and is rotatably connected to the core rod (4).

Images