Star-shaped sleeve hard milling ball groove positioner

Abstract

The invention belongs to the technical field of machining, and particularly relates to a star-shaped sleeve hard milling ball groove positioner which comprises a positioning base body serving as a shell, a movable groove is formed in the upper surface of the positioning base body, and a positioning cover is slidably connected to the inner surface of the movable groove in an inserted mode. The upper surface of the positioning cover is fixedly connected with the upper surface of the positioning base body through fixing bolts distributed in an annular array mode, blanking holes are formed in the positioning cover from the upper surface to the lower surface in a penetrating mode, a positioning mechanism is arranged on the inner surface of the positioning cover, and an adjusting mechanism is arranged between the lower surface of the positioning mechanism and the inner bottom surface of the movable groove. According to the star-shaped sleeve hard milling ball groove positioner, through the three rubber rollers which are triangular and synchronously rotate, uniform tangential friction force can be applied to the outer wall of a product, the initial position deviation and angle deflection of the product are effectively corrected, rapid centering is achieved, and the product is automatically adjusted to the theoretical center position of a discharging hole.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a star-shaped sleeve hard milling ball track locator. Background Technology

[0002] In the field of machining, especially in high-precision hard milling processes, the positioning accuracy and stability of the workpiece directly determine the machining quality and efficiency. For workpieces with complex geometric features, such as star-shaped sleeves, positioning is particularly difficult, and traditional positioning methods typically suffer from the following problems:

[0003] Currently, traditional fixtures mostly rely on manual adjustment and locking, depending on the operator's experience. This makes it difficult to achieve high-precision, repeatable positioning, which can easily lead to machining deviations. Furthermore, current positioners rely on the inclined surface of the positioning pin to position the product at the junction of the ball track and the plane. Factors such as burrs and rolled edges can cause inaccurate positioning and wobbling, affecting the distribution of machining allowances and ultimately the depth of the hardness layer on both sides of the product. When the concentricity between the chuck and the positioning mechanism is high, the chuck's inability to horizontally displace the product during clamping can easily lead to product tilting. Additionally, the workpiece requires multiple trial placements, manual centering, and step-by-step clamping, resulting in long preparation times and impacting overall machining efficiency. Therefore, this invention addresses the shortcomings of the aforementioned technologies. Summary of the Invention

[0004] Based on the aforementioned technical problems, this invention proposes a star-shaped sleeve hard milling ball track positioner.

[0005] The present invention proposes a star-shaped hard milling ball track locator, comprising a locating base as a shell, wherein a movable groove is formed on the upper surface of the locating base, a locating cover is slidably inserted into the inner surface of the movable groove, the upper surface of the locating cover is fixedly connected to the upper surface of the locating base by a ring array of fixing bolts, a material dropping hole is formed through the locating cover from its upper surface to its lower surface, a locating mechanism is provided on the inner surface of the locating cover, and an adjustment mechanism is provided between the lower surface of the locating mechanism and the inner bottom surface of the movable groove.

[0006] The adjustment mechanism adjusts the posture of the product placed in the feeding hole, and the positioning mechanism operates after the posture adjustment.

[0007] The positioning mechanism extends to the groove of the product and abuts against the outer surface of the product, thereby positioning and clamping the product.

[0008] Preferably, the adjustment mechanism includes a servo motor fixedly connected to the bottom wall of the movable groove, a support plate fixedly connected to the upper surface of the housing of the servo motor, and the output shaft of the servo motor extending to the upper surface of the support plate and having a drive gear fixedly sleeved on its outer surface.

[0009] Preferably, the adjustment mechanism further includes adjustment gears that are rotatably connected in a ring on the upper surface of the support plate, and the plurality of adjustment gears respectively mesh with the drive gear.

[0010] Preferably, the adjustment mechanism further includes an adjustment rod fixedly connected to one side of the panel of the adjustment gear. The upper surface of the adjustment rod is rotatably connected to a rubber roller via a support shaft. The three rubber rollers are arranged in a triangle, and the outer surface of the rubber rollers is in contact with the outer surface of the product. After the three rubber rollers rotate synchronously, the placement position of the product is adjusted for centering.

[0011] Preferably, the adjustment mechanism further includes a cover plate supported and mounted on the upper surface of the adjustment gear shaft, and an elastic base is fixedly connected to the upper surface of the cover plate.

[0012] Preferably, the elastic base is composed of a conical elastic diaphragm, and an elastic cavity is formed inside the elastic base. A reference base is fixedly connected to the upper surface of the elastic base. The reference base is composed of a conical cavity base and a ring fixed to the upper surface of the conical cavity base. The diameter of the ring is smaller than the diameter of the upper surface of the conical cavity base.

[0013] Preferably, the positioning cover is T-shaped, and the positioning mechanism includes guide protrusions that are fixedly connected to the inner surface of the positioning cover in a ring. An annular groove is provided on the inner surface of the middle section of the positioning cover, and positioning clamping posts that are distributed in a ring and extend and retract toward the outer surface of the product are provided on the inner surface of the annular groove.

[0014] Preferably, the positioning clamping column has an internal telescopic groove, and the inner surface of the telescopic groove has a T-shaped rubber contact head that slides and extends. The outer surface of the positioning clamping column has extrusion holes that are fixedly connected to the inside of the telescopic groove in a ring. The inner surface of the extrusion holes is slidably connected to positioning steel balls. The material discharge hole is consistent with the shape of the product. After the positioning steel balls in the extrusion holes on both sides are pushed out, they abut against the inner surface of the groove of the product for positioning and clamping.

[0015] Preferably, the positioning mechanism further includes an extruded steel ball fixedly connected to the outer surface of the tail end of the rubber contact head, the outer surface of the extruded steel ball slidingly contacting the outer surfaces of the plurality of positioning steel balls, and a return spring fixedly sleeved on the outer surface of the tail end of the rubber contact head, the free end of the return spring being fixedly connected to the inner wall of the telescopic groove.

[0016] Preferably, the positioning mechanism further includes pads fixedly connected to the top and bottom walls of the annular groove, the positions of the pads corresponding one-to-one with the positions of the positioning clamps, an adjusting ring rotatably connecting the upper and lower sets of pads, a movable slot being formed on the tail end surface of the positioning clamp, the inner surface of the movable slot being slidably engaged with the outer surface of the adjusting ring, a telescopic groove being formed on the opposite side surface of each set of pads, the outer surface of the positioning clamp being slidably connected with the inner surface of the telescopic groove, a path groove being formed in a ring on the outer surface of the adjusting ring, an adjusting post being fixedly connected to the inner surface of one end of the movable slot, and the outer surface of the adjusting post being slidably connected with the inner surface of the path groove.

[0017] Preferably, an adjusting tooth is provided on the outer surface of a segment of the adjusting ring, and a linkage port extending through to the outer surface of the positioning cover is provided at one end of the annular groove. An adjusting screw is rotatably connected to the peripheral surface of the positioning cover through a supporting side plate. The adjusting screw meshes with the adjusting tooth, and a universal joint is hinged to one end of the adjusting screw. An adjusting motor is fixedly connected to the lower surface of the horizontal plate of the positioning cover, and the outer surface of the output shaft of the adjusting motor is fixedly connected to the free end of the universal joint through a coupling.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. By setting up an adjustment mechanism, fully automatic and high-precision centering and pre-positioning are achieved after the product is placed in. During the adjustment process, three rubber rollers that rotate synchronously in a triangle can apply a uniform tangential friction force to the outer wall of the product, effectively correcting its initial positional offset and angular deviation, achieving rapid centering, and automatically adjusting the product to the theoretical center position of the drop hole. Secondly, the elastic base and reference base can absorb the impact of falling before adjustment, adapt to the bottom shape of the product, and provide preliminary radial limit, which not only protects the product surface, but also greatly reduces the time and stroke required for subsequent fine adjustment, thus improving the overall positioning efficiency and reliability of the preparation stage.

[0020] 2. By setting up a positioning mechanism consisting of synchronously radially retractable positioning clamping columns, built-in rubber contact heads, and positioning steel balls, a balanced clamping with flexible contact and rigid locking at the product groove is achieved. During the adjustment process, the adjusting ring drives all positioning clamping columns to move radially synchronously, ensuring that multiple clamping points act simultaneously, the clamping force is evenly distributed, and the clamping center always coincides with the equipment axis, which greatly improves the concentricity and repeatability of positioning. Then, the rubber contact head pushes and extrudes the steel balls, thereby ejecting multiple positioning steel balls, so that the single axial drive can be converted into a multi-point radial clamping force on the inner wall of the product groove. Attached Figure Description

[0021] Figure 1This is a schematic diagram of a star-shaped sleeve hard-milled ball track locator proposed in this invention;

[0022] Figure 2 This is a three-dimensional view of the positioning base structure of a star-shaped sleeve hard-milled ball track locator proposed in this invention;

[0023] Figure 3 This is a perspective view of the shielding cover structure of a star-shaped sleeve hard milling ball track locator proposed in this invention;

[0024] Figure 4 This is a perspective view of the elastic base structure of a star-shaped sleeve hard-milled ball track locator proposed in this invention;

[0025] Figure 5 This is a perspective view of the adjusting gear structure of a star-shaped sleeve hard-milled ball track locator proposed in this invention;

[0026] Figure 6 This is a perspective view of the positioning cover structure of a star-shaped sleeve hard-milled ball track locator proposed in this invention;

[0027] Figure 7 This is a perspective view of the guide protrusion structure of a star-shaped sleeve hard milling ball track locator proposed in this invention;

[0028] Figure 8 This is a perspective view of the annular groove structure of a star-shaped sleeve hard-milled ball track locator proposed in this invention;

[0029] Figure 9 This is a perspective view of the adjusting ring structure of a star-shaped sleeve hard milling ball track locator proposed in this invention;

[0030] Figure 10 This is a perspective view of the pad structure of a star-shaped sleeve hard-milled ball track locator proposed in this invention;

[0031] Figure 11 This is a perspective view of the adjusting screw structure of a star-shaped sleeve hard milling ball track positioner proposed in this invention;

[0032] Figure 12 This is a perspective view of the positioning clamping column structure of a star-shaped sleeve hard milling ball track locator proposed in this invention;

[0033] Figure 13 This is a perspective view of the positioning steel ball structure of a star-shaped sleeve hard-milled ball track locator proposed in this invention;

[0034] Figure 14 This is a perspective view of the telescopic groove structure of a star-shaped sleeve hard-milled ball track locator proposed in this invention.

[0035] In the diagram: 1. Positioning base; 11. Movable groove; 2. Positioning cover; 21. Material drop hole; 3. Adjustment mechanism; 31. Servo motor; 32. Support plate; 33. Drive gear; 34. Adjusting gear; 35. Adjusting rod; 36. Rubber roller; 37. Cover plate; 38. Elastic base; 39. Reference seat; 4. Positioning mechanism; 41. Guide protrusion; 42. Annular groove; 43. Positioning clamp; 44. Telescopic groove; 45. Rubber contact head; 46. Extrusion hole; 47. Positioning steel ball; 48. Extruded steel ball; 49. Return spring; 50. Pad; 51. Adjusting ring; 52. Telescopic slide; 53. Moving slot; 54. Path groove; 55. Adjusting column; 56. Adjusting gear; 57. Linkage port; 58. Adjusting screw; 59. Universal joint; 60. Adjusting motor. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Reference Figures 1-14 A star-shaped hard milling ball track locator includes a locating base 1 as the outer shell. The locating base 1 has a movable groove 11 on its upper surface. A locating cover 2 is slidably inserted into the inner surface of the movable groove 11. The upper surface of the locating cover 2 is fixedly connected to the upper surface of the locating base 1 by a ring array of fixing bolts. The locating cover 2 has a material drop hole 21 extending from its upper surface to its lower surface. A locating mechanism 4 is provided on the inner surface of the locating cover 2. An adjustment mechanism 3 is provided between the lower surface of the locating mechanism 4 and the inner bottom surface of the movable groove 11.

[0038] Among them, the adjustment mechanism 3 adjusts the posture of the product placed in the discharge hole 21, and the positioning mechanism 4 performs the operation after the posture is adjusted.

[0039] In order to provide a stable and controllable power input for the adjustment mechanism 3 and ensure the accuracy and repeatability of the adjustment action, the adjustment mechanism 3 includes a servo motor 31 fixedly connected to the bottom wall of the movable groove 11. A support plate 32 is fixedly connected to the upper surface of the housing of the servo motor 31. The output shaft of the servo motor 31 extends to the upper surface of the support plate 32 and a drive gear 33 is fixedly sleeved on its outer surface. By setting the servo motor 31 at the bottom of the movable groove 11 and extending its output shaft above the support plate 32 and fixing the drive gear 33, the rotation of the servo motor 31 can directly drive the gear transmission system.

[0040] In order to achieve synchronous and unidirectional movement of multiple adjustment units and avoid product deviation due to asynchronous movement, the adjustment mechanism 3 also includes adjustment gears 34 that are rotatably connected in a ring on the upper surface of the support plate 32. The multiple adjustment gears 34 mesh with the drive gear 33 respectively. By distributing multiple adjustment gears 34 in a ring on the support plate 32 and making them all mesh with the drive gear 33, a planetary gear transmission structure is formed to ensure that all adjustment gears 34 rotate in a coordinated manner under the drive of the drive gear 33.

[0041] In order to automatically center and adjust the product and correct its initial position and angle deviation, the adjustment mechanism 3 also includes an adjustment rod 35 fixedly connected to one side of the panel of the adjustment gear 34. The upper surface of the adjustment rod 35 is rotatably connected to a rubber roller 36 via a support shaft. The three rubber rollers 36 are arranged in a triangle, and the outer surface of the rubber rollers 36 is in contact with the outer surface of the product. After the three rubber rollers 36 rotate synchronously, the placement position of the product is centered and adjusted. By fixing the adjustment rod 35 on the adjustment gear 34 and setting the rubber roller 36 on the top of the rod, the three rubber rollers 36 are arranged in a triangle and rotate synchronously. The uniform tangential friction force is used to push the product to move towards the center of the discharge hole 21 and straighten its posture.

[0042] To provide flexible support for the product and avoid rigid impact damage, the adjustment mechanism 3 also includes a shielding cover 37 supported on the upper surface of the axle of the adjustment gear 34. An elastic base 38 is fixedly connected to the upper surface of the shielding cover 37. By setting the shielding cover 37 above the axle of the adjustment gear 34 and fixing the elastic base 38 above the cover, the product can sit on the elastic base 38 when it falls, relying on its deformation to absorb the impact and adapt to the shape of the bottom of the product.

[0043] To provide initial stability to the product before adjustment, reduce subsequent adjustments, and improve positioning efficiency, the elastic base 38 is composed of a conical elastic diaphragm. An elastic cavity is provided inside the elastic base 38. A reference seat 39 is fixedly connected to the upper surface of the elastic base 38. The reference seat 39 consists of a conical cavity base and a ring fixed to the upper surface of the conical cavity base. The diameter of the ring is smaller than the diameter of the upper surface of the conical cavity base. By designing the elastic base 38 as a conical elastic diaphragm and an internal elastic cavity structure, and setting the reference seat 39 with a ring on it, the bottom of the product fits against the conical surface and the ring, achieving initial radial limiting and buffering.

[0044] By setting the adjustment mechanism 3, fully automatic and high-precision centering and pre-positioning after the product is placed in is achieved. During the adjustment process, three rubber rollers 36 that rotate synchronously in a triangle can apply a uniform tangential friction force to the outer wall of the product, effectively correcting its initial positional offset and angular deviation, achieving rapid centering, and automatically adjusting the product to the theoretical center position of the drop hole 21. Secondly, the elastic base 38 and the reference base 39 can absorb the impact of falling before adjustment, adapt to the bottom shape of the product and provide preliminary radial limit, which not only protects the product surface, but also greatly reduces the time and stroke required for subsequent fine adjustment, thus improving the overall positioning efficiency and reliability of the preparation stage.

[0045] The positioning mechanism 4 extends to the groove of the product and abuts against the outer surface of the product, thereby positioning and clamping the product.

[0046] To achieve balanced clamping of the product at multiple points around the circumference and enhance positioning stability and structural rigidity, the positioning cover 2 is T-shaped. The positioning mechanism 4 includes guide protrusions 41 that are fixedly connected to the inner surface of the positioning cover 2 in a ring. An annular groove 42 is provided on the inner surface of the middle section of the positioning cover 2. Positioning clamping posts 43 that are distributed in a ring and extend and retract towards the outer surface of the product are provided on the inner surface of the annular groove 42. By designing the positioning cover 2 as a T-shaped structure, setting guide protrusions 41 on its inner surface to guide the movement of the product, and opening an annular groove 42 in the middle section to install multiple positioning clamping posts 43, they can extend radially synchronously and press against the outer surface of the product.

[0047] To convert single axial drive into multi-radial clamping force and achieve flexible contact and rigid positioning at the product groove, a telescopic groove 44 is provided inside the positioning clamping column 43. A T-shaped rubber contact head 45 slides and extends on the inner surface of the telescopic groove 44. An extrusion hole 46 is provided in a ring on the outer surface of the positioning clamping column 43 and is fixedly connected to the inside of the telescopic groove 44. A positioning steel ball 47 is slidably connected to the inner surface of the extrusion hole 46. The material discharge hole 21 is consistent with the shape of the product. After the positioning steel balls 47 in the extrusion holes 46 on both sides are pushed out, they abut against the inner surface of the product groove for positioning and clamping. By opening a telescopic groove 44 in the positioning clamping column 43 to install the T-shaped rubber contact head 45, and opening an extrusion hole 46 in the column to place the positioning steel ball 47, the rubber contact head 45 pushes inward and squeezes the steel ball outward to abut against the product groove to complete the positioning.

[0048] To achieve rapid switching and buffering of clamping states, avoid rigid impacts, and ensure synchronous movement of the positioning steel balls 47, the positioning mechanism 4 also includes an extruded steel ball 48 fixedly connected to the outer surface of the tail end of the rubber contact head 45. The outer surface of the extruded steel ball 48 slides in contact with the outer surfaces of the multiple positioning steel balls 47. A return spring 49 is fixedly sleeved on the outer surface of the tail end of the rubber contact head 45. The free end of the return spring 49 is fixedly connected to the inner wall of the telescopic groove 44. By fixing the extruded steel ball 48 and the return spring 49 to the tail end of the rubber contact head 45, when the rubber contact head 45 moves forward, the extruded steel ball 48 pushes all the positioning steel balls 47 outward. The return spring 49 then drives the rubber contact head 45 and the positioning steel balls 47 to return to their original positions after the drive is released.

[0049] To ensure that all positioning clamping posts 43 move radially synchronously and that the clamping center coincides with the axis of the discharge hole 21, the positioning mechanism 4 also includes pads 50 fixedly connected to the top and bottom walls of the annular groove 42. The positions of the pads 50 correspond one-to-one with the positions of the positioning clamping posts 43. An adjusting ring 51 is rotatably connected between the upper and lower sets of pads 50. A movable slot 53 is provided on the tail end surface of the positioning clamping post 43. The inner surface of the movable slot 53 slides and engages with the outer surface of the adjusting ring 51. A telescopic groove 52 is provided on the opposite side surface of each set of pads 50. The outer surface of the positioning clamp 43 is slidably connected to the inner surface of the telescopic groove 52. The outer surface of the adjusting ring 51 is provided with a path groove 54 in an annular pattern. An adjusting column 55 is fixedly connected to the inner surface of one end of the movable slot 53. The outer surface of the adjusting column 55 is slidably connected to the inner surface of the path groove 54. By setting a pad 50 in the annular groove 42 to install the adjusting ring 51, and connecting the tail end of the positioning clamp 43 to the adjusting ring 51 through the movable slot 53, when the adjusting ring 51 rotates, it drives all the clamps to extend and retract synchronously through the sliding of the adjusting column 55 in the path groove 54.

[0050] To achieve automated and precise control of the clamping and releasing of the positioning mechanism 4, and to make the clamping force adjustable and controllable, an adjusting tooth 56 is provided on the outer surface of a segment of the adjusting ring 51. A linkage port 57 extending through to the outer surface of the positioning cover 2 is provided at one end of the annular groove 42. An adjusting screw 58 is rotatably connected to the peripheral surface of the positioning cover 2 through a supporting side plate. The adjusting screw 58 meshes with the adjusting tooth 56. A universal joint 59 is hinged to one end of the adjusting screw 58. An adjusting motor 60 is fixedly connected to the lower surface of the horizontal plate of the positioning cover 2. The outer surface of the output shaft of the adjusting motor 60 is fixedly connected to the free end of the universal joint 59 through a coupling. By setting the adjusting motor 60 on the positioning cover 2, and by meshing the universal joint 59, the adjusting screw 58 and the adjusting tooth 56 on the adjusting ring 51, the rotation of the motor is converted into the rotation of the adjusting ring 51, thereby driving all the positioning clamping columns 43 to move radially synchronously.

[0051] By setting up a positioning mechanism 4 consisting of a positioning clamping column 43 that can be synchronously extended and retracted radially, an internal rubber contact head 45, and a positioning steel ball 47, a balanced clamping with flexible contact and rigid locking at the product groove is achieved. During the adjustment process, by using the adjusting ring 51 to drive all positioning clamping columns 43 to move radially synchronously, multiple clamping points are ensured to move simultaneously, the clamping force is evenly distributed, and the clamping center always coincides with the axis of the equipment, which greatly improves the concentricity and repeatability of the positioning. Then, the rubber contact head 45 pushes and extrudes the steel ball 48, thereby ejecting multiple positioning steel balls 47, so that the single axial drive can be converted into a multi-point radial clamping force on the inner wall of the product groove.

[0052] Working principle: The product to be processed is placed into the drop hole 21 of the positioning cover 2 from above. When the product falls, it first sits on the elastic base 38. The base is composed of a conical elastic diaphragm and an elastic cavity, which can absorb the impact, adapt to the shape of the bottom surface of the product, and achieve initial radial limit through the ring on the reference base 39, which prepares for subsequent adjustment.

[0053] The servo motor 31 is started, driving the drive gear 33 to rotate. The drive gear 33 meshes with multiple ring-shaped adjusting gears 34, forming a planetary gear transmission system to ensure that all adjusting gears 34 rotate synchronously and in the same direction. Each adjusting gear 34 drives the upper rubber roller 36 to rotate via the adjusting rod 35. The three rubber rollers 36 are triangularly distributed, synchronously contacting the outer surface of the product and applying a uniform tangential friction force, pushing the product to rotate slowly within the discharge hole 21 and gradually move towards the center of the hole, automatically correcting its positional offset and angular deviation, and achieving rapid centering.

[0054] Once the product is adjusted to the center position of the discharge hole 21, the servo motor 31 stops running, and the adjustment stage is completed. At this time, the product is in the ideal pre-positioned state, laying the foundation for subsequent high-precision clamping.

[0055] When the chuck presses down to clamp the product, the chuck presses the product against the reference seat 39. At this time, the adjustment motor 60 is started, which drives the adjustment screw 58 to rotate through the coupling and universal joint 59. The adjustment screw 58 meshes with the adjustment teeth 56 on the outer circumference of the adjustment ring 51, causing the adjustment ring 51 to rotate in the annular groove 42. The outer surface of the adjustment ring 51 is provided with a path groove 54. The adjustment pins 55 at the tail ends of each positioning clamping pin 43 are inserted into the path groove 54. When the adjustment ring 51 rotates, the path groove 54 drives all the positioning clamping pins 43 to extend and retract synchronously along the telescopic sliding groove 52 on the pad block 50 through the adjustment pins 55.

[0056] During the extension and retraction of the positioning clamping column 43, the rubber contact head 45 inside is squeezed and moves into the extension groove 44. The extruded steel ball 48 at the tail end of the rubber contact head 45 is pushed forward, thereby pressing against multiple positioning steel balls 47, causing them to extend outward from the extrusion hole 46. Since the material discharge hole 21 matches the shape of the product and the position of the positioning steel ball 47 corresponds to the ball track groove on the outer surface of the product, the extended positioning steel ball 47 is precisely embedded in the inner wall of the groove of the product, forming a multi-point contact rigid locking. The return spring 49 resets the rubber contact head 45 in the non-clamping state, ensuring that the clamping force is controllable and releaseable. After the product is fully positioned and clamped, the entire positioner enters a stable state and can be subjected to subsequent hard milling. After the machining is completed, the motor 60 is reversed to reset the positioning clamping column 43, and the positioning steel balls 47 retract, so that the product can be taken out.

[0057] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A star-shaped hard-milled ball track locator, comprising a locating base (1) as the outer shell, characterized in that: The positioning base (1) has a movable groove (11) on its upper surface. A positioning cover (2) is slidably inserted into the inner surface of the movable groove (11). The upper surface of the positioning cover (2) is fixedly connected to the upper surface of the positioning base (1) by a ring array of fixing bolts. The positioning cover (2) has a material drop hole (21) extending from its upper surface to its lower surface. A positioning mechanism (4) is provided on the inner surface of the positioning cover (2). An adjustment mechanism (3) is provided between the lower surface of the positioning mechanism (4) and the inner bottom surface of the movable groove (11). The adjustment mechanism (3) adjusts the posture of the product placed in the dropping hole (21), and the positioning mechanism (4) operates after the posture adjustment. The positioning mechanism (4) extends to the groove of the product and abuts against the outer surface of the product, thereby positioning and clamping the product.

2. The star-shaped hard-milled ball track locator according to claim 1, characterized in that: The adjustment mechanism (3) includes a servo motor (31) fixedly connected to the bottom wall of the movable groove (11). A support plate (32) is fixedly connected to the upper surface of the housing of the servo motor (31). The output shaft of the servo motor (31) extends to the upper surface of the support plate (32) and a drive gear (33) is fixedly sleeved on its outer surface.

3. A star-shaped hard-milled ball track locator according to claim 2, characterized in that: The adjustment mechanism (3) further includes adjustment gears (34) that are rotatably connected in a ring on the upper surface of the support plate (32), and the plurality of adjustment gears (34) respectively mesh with the drive gear (33).

4. A star-shaped sleeve hard-milled ball track locator according to claim 3, characterized in that: The adjustment mechanism (3) also includes an adjustment rod (35) fixedly connected to one side of the panel of the adjustment gear (34). The upper surface of the adjustment rod (35) is rotatably connected to a rubber roller (36) via a support shaft. The three rubber rollers (36) are arranged in a triangular pattern, and the outer surface of the rubber rollers (36) is in contact with the outer surface of the product. After the three rubber rollers (36) rotate synchronously, the placement position of the product is adjusted for centering.

5. A star-shaped sleeve hard-milled ball track locator according to claim 4, characterized in that: The adjustment mechanism (3) also includes a cover plate (37) supported on the upper surface of the axle of the adjustment gear (34), and an elastic base (38) is fixedly connected to the upper surface of the cover plate (37).

6. A star-shaped sleeve hard-milled ball track locator according to claim 5, characterized in that: The elastic base (38) is composed of a conical elastic diaphragm. An elastic cavity is provided inside the elastic base (38). A reference base (39) is fixedly connected to the upper surface of the elastic base (38). The reference base (39) is composed of a conical cavity base and a ring fixed to the upper surface of the conical cavity base. The diameter of the ring is smaller than the diameter of the upper surface of the conical cavity base.

7. A star-shaped sleeve hard-milled ball track locator according to claim 6, characterized in that: The positioning cover (2) is T-shaped, and the positioning mechanism (4) includes guide protrusions (41) that are fixedly connected to the inner surface of the positioning cover (2) in a ring. The inner surface of the middle section of the positioning cover (2) is provided with an annular groove (42), and the inner surface of the annular groove (42) is provided with positioning clamps (43) that are distributed in a ring and extend and retract to the outer surface of the product.

8. A star-shaped sleeve hard-milled ball track locator according to claim 7, characterized in that: The positioning clamp (43) has an internal telescopic groove (44), and the inner surface of the telescopic groove (44) has a T-shaped rubber contact head (45) that slides and extends. The outer surface of the positioning clamp (43) has an extrusion hole (46) that is fixedly connected to the inside of the telescopic groove (44). The inner surface of the extrusion hole (46) is slidably connected to a positioning steel ball (47). The material discharge hole (21) is consistent with the shape of the product. The positioning steel balls (47) in the extrusion holes (46) on both sides are pushed out and pressed against the inner surface of the groove of the product for positioning and clamping.

9. A star-shaped sleeve hard-milled ball track locator according to claim 8, characterized in that: The positioning mechanism (4) further includes an extruded steel ball (48) fixedly connected to the outer surface of the tail end of the rubber contact head (45). The outer surface of the extruded steel ball (48) slides in contact with the outer surface of the plurality of positioning steel balls (47). A return spring (49) is fixedly sleeved on the outer surface of the tail end of the rubber contact head (45). The free end of the return spring (49) is fixedly connected to the inner wall of the telescopic groove (44).

10. A star-shaped sleeve hard-milled ball track locator according to claim 9, characterized in that: The positioning mechanism (4) further includes pads (50) fixedly connected to the top and bottom walls of the annular groove (42). The positions of the pads (50) correspond one-to-one with the positions of the positioning clamps (43). An adjusting ring (51) is rotatably connected between the upper and lower sets of pads (50). A movable slot (53) is provided on the tail end surface of the positioning clamps (43). The inner surface of the movable slot (53) is slidably engaged with the outer surface of the adjusting ring (51). A telescopic groove (52) is provided on the opposite side surface of each set of pads (50). The outer surface of the positioning clamps (43) is slidably connected with the inner surface of the telescopic groove (52). A path groove (54) is provided on the outer surface of the adjusting ring (51) in an annular distribution. An adjusting column (55) is fixedly connected to the inner surface of one end of the movable slot (53). The outer surface of the adjusting column (55) is slidably connected with the inner surface of the path groove (54). An adjusting tooth (56) is provided on the outer surface of a segment of the adjusting ring (51). One end of the annular groove (42) is provided with a linkage port (57) that extends through to the outer surface of the positioning cover (2). An adjusting screw (58) is rotatably connected to the peripheral surface of the positioning cover (2) through a supporting side plate. The adjusting screw (58) meshes with the adjusting tooth (56). One end of the adjusting screw (58) is hinged to a universal joint (59). An adjusting motor (60) is fixedly connected to the lower surface of the horizontal plate of the positioning cover (2). The outer surface of the output shaft of the adjusting motor (60) is fixedly connected to the free end of the universal joint (59) through a coupling.

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