Segment difference refiner

Abstract

The utility model provides a segment difference refiner which comprises a mechanical arm feeding and discharging mechanism, a rotary material conveying mechanism and grinding mechanisms, the number of the grinding mechanisms is at least two, a plurality of clamping jaw mechanisms are arranged on the rotary material conveying mechanism, the number of the clamping jaw mechanisms is the same as that of the grinding mechanisms, and each clamping jaw mechanism comprises a material taking installation frame. A movable claw assembly and a fixed claw are fixedly arranged on the material taking mounting frame, the movable claw assembly comprises a movable claw driving device and a movable claw, and clamping positioning parts are arranged at the lower ends of the movable claw and the fixed claw. The material taking and placing mechanism can solve the problems that in the prior art, a material taking and placing mechanism of a refiner is not high in durability, clamping precision is reduced, and production cost is increased, by means of the product structure, the movable claw moves, the fixed claw serves as the reference of clamping and positioning, the clamping precision is guaranteed, the situation that the clamping precision is reduced is delayed, and production efficiency is improved. And the situation that the clamping jaw is frequently adjusted or replaced is avoided, the production cost of products is controlled, and the competitiveness of enterprises can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of precision tool processing, and particularly relates to a step precision grinding machine. Background Art

[0002] The micro drill bit is mainly composed of a rod material at the bottom and a drill needle at the upper part. The micro drill bit is made of high-strength alloy rod material through processes such as grinding, edge opening, and back grinding. At present, for the grinding process of the rod material, a precision grinding machine is mainly used. When producing UC-type micro drill bits, a step layer needs to be processed on the outer side wall of the drill needle before edge opening, thus a step precision grinding machine appears.

[0003] Currently, "a fully automatic step precision grinding integrated device" (application number: 202221558317.3) is disclosed, which can realize the function of integrating step processing and high-precision grinding. During the processing, a parallel jaw cylinder is used to transfer materials. Due to environmental factors and service life factors, it is easy to wear or be damaged during the processing, and the clamping accuracy deviates, resulting in the need to frequently replace the material loading and unloading mechanism or adjust the fixture, increasing the production cost and affecting the processing efficiency of the whole machine, which is not conducive to improving the competitiveness of the enterprise. Content of the Utility Model

[0004] To solve the problems in the prior art, the utility model provides a step precision grinding machine, which solves the problems of low durability, reduced clamping accuracy and increased production cost of the material loading and unloading mechanism of the precision grinding machine in the prior art.

[0005] A step precision grinding machine of the utility model includes a manipulator loading and unloading mechanism, a rotary material conveying mechanism and a grinding mechanism. The number of grinding mechanisms is at least two, and multiple grinding mechanisms are arranged adjacent to the rotary material conveying mechanism. A plurality of jaw mechanisms are arranged on the rotary material conveying mechanism, and the number of jaw mechanisms is the same as that of the grinding mechanisms. The rotary material conveying mechanism can cooperate with the jaw mechanisms to transfer materials to different grinding mechanisms for processing. The rotary material conveying mechanism can drive the jaw mechanisms to rotate. The jaw mechanism includes a material taking mounting frame, and a movable jaw assembly and a fixed jaw are fixedly arranged on the material taking mounting frame. The movable jaw assembly includes a movable jaw driving device and a movable jaw. Clamping positioning parts are arranged at the lower ends of the movable jaw and the fixed jaw, and the movable jaw driving device can change the relative distance between the clamping positioning parts of the movable jaw and the fixed jaw.

[0006] The utility model is further improved. The rotary material conveying mechanism includes an indexing rotary device and a lifting device. The lifting device is arranged on the indexing rotary device. The indexing rotary device can drive the lifting device to perform indexing rotation. A lifting mounting plate is arranged at the moving end of the lifting device, and a plurality of jaw mechanisms are respectively fixedly arranged on the lifting mounting plate.

[0007] The present utility model is further improved. The movable claw includes a driving end and a clamping end. The positioning portion is provided at the clamping end. The movable claw and the fixed claw are arranged crosswise. A rotary connecting portion is provided between the driving end and the clamping end. The fixed claw is provided with a mounting portion for fitting and connecting with the rotary connecting portion. The movable claw can be rotatably connected to the fixed claw through the rotary connecting portion. The moving end of the movable claw driving device can cause the movable claw to rotate and swing around the mounting portion.

[0008] The present utility model is further improved and further includes a reset elastic member. The movable claw driving device is a driving cylinder. The moving end of the driving cylinder can push the driving end so that the clamping end moves away from the clamping and positioning portion of the fixed claw. The clamping end is provided with a first reset connecting block for cooperating with one end of the reset elastic member. The fixed claw is provided with a second reset connecting block for cooperating with the other end of the reset elastic member.

[0009] The present utility model is further improved, and the reset elastic member is a reset spring.

[0010] The present utility model is further improved. The clamping and positioning portion of the movable claw is a first positioning groove provided at the clamping end. The clamping and positioning portion of the fixed claw is a second positioning groove provided on the fixed claw.

[0011] The present utility model is further improved. The shape of the first positioning groove is V-shaped, and the opening direction of the first positioning groove is set towards the second positioning groove.

[0012] The present utility model is further improved. The shape of the second positioning groove is V-shaped, and the opening direction of the second positioning groove is set towards the first positioning groove.

[0013] The present utility model is further improved. The number of the second positioning grooves is two groups, and the two groups of second positioning grooves are symmetrically and adjacently arranged.

[0014] The present utility model is further improved. A positioning clearance notch for accommodating the first positioning groove is provided between the two groups of second positioning grooves.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model provides a step grinder. With this structure, it can effectively solve the problems in the prior art that the material taking and placing mechanism of the grinder has low durability, reduced clamping accuracy and increased production costs. By using the product structure, the movable claw moves, and the fixed claw serves as the reference for clamping and positioning, ensuring the clamping accuracy, delaying the reduction of the clamping accuracy, avoiding the situation of frequently adjusting or replacing the clamping claws, controlling the production cost of the product, and being beneficial to improving the competitiveness of the enterprise. Description of the Drawings

[0016] To more clearly illustrate the solutions in the present utility model or the prior art, the following will briefly introduce the attached drawings required for the description of the embodiments or the prior art. Obviously, the attached drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can be obtained based on these attached drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the step precision grinding machine of the present utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the rotary material conveying mechanism;

[0019] Figure 3 is Figure 2 The partial enlarged view of part A in Specific embodiments

[0020] Unless otherwise defined, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs; the terms used in the description of the present utility model are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model; the terms "including" and "having" and any variations thereof in the description and claims of the present utility model and the above attached drawing description are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of the present utility model or the above attached drawings are used to distinguish different objects, rather than to describe a specific order.

[0021] Referring to "embodiments" in the present utility model means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present utility model. The appearance of this phrase at various positions in the description does not necessarily refer to the same embodiment, nor is it an exclusive, independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in the present utility model can be combined with other embodiments.

[0022] In order to enable those skilled in the art of this technology to better understand the solutions of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the attached drawings.

[0023] Such as Figures 1 - 3As shown in the figure, a step precision grinding machine of the present utility model includes a manipulator loading and unloading mechanism 1, a rotary material conveying mechanism 2, and a grinding mechanism 3. The number of grinding mechanisms 3 is at least two, and multiple grinding mechanisms 3 are arranged adjacent to the rotary material conveying mechanism 2. A plurality of jaw mechanisms 4 are arranged on the rotary material conveying mechanism 2, and the number of jaw mechanisms 4 is the same as that of the grinding mechanisms 3. The rotary material conveying mechanism 2 can cooperate with the jaw mechanisms 4 to transfer materials to different grinding mechanisms 3 for processing, and the rotary material conveying mechanism 2 can drive the jaw mechanisms 4 to rotate.

[0024] The number of grinding mechanisms 3 is three groups, and the number of jaw mechanisms 4 is four groups. The four groups of jaw mechanisms 4 are respectively arranged on the four sides of the rotary material conveying mechanism 2 and cooperate with the three groups of grinding mechanisms 3 and the manipulator loading and unloading mechanism 1 respectively.

[0025] The jaw mechanism 4 includes a material taking mounting frame 41. A movable jaw assembly and a fixed jaw 42 are fixedly arranged on the material taking mounting frame 41. The movable jaw assembly includes a movable jaw driving device 43 and a movable jaw 44. Clamping and positioning parts are arranged at the lower ends of the movable jaw 44 and the fixed jaw 42. The movable jaw driving device 43 can change the relative distance between the clamping and positioning parts of the movable jaw 44 and the fixed jaw 42.

[0026] Adopting the method of one moving and one fixed can effectively ensure the clamping precision, ensure that the clamped product remains in the central position. Compared with the existing clamping devices, it can effectively avoid the reduction of clamping precision, resulting in the situation of frequently adjusting or replacing the fixture, delay the reduction of clamping precision to a certain extent, and control the production cost.

[0027] The rotary material conveying mechanism 2 includes an indexing rotary device 21 and a lifting device 22. The lifting device 22 is arranged on the indexing rotary device 21. A lifting mounting plate 221 is arranged on the moving end of the lifting device 22. A plurality of jaw mechanisms 4 are respectively fixedly arranged on the lifting mounting plate 221.

[0028] Through the setting of the indexing rotary device 21, it can effectively drive the lifting device 22 to perform indexing rotation, and through the setting of the lifting device 22, it can effectively drive the jaw mechanism to perform lifting movement, increasing the flexibility of processing.

[0029] The movable jaw 44 includes a driving end and a clamping end. The positioning part is arranged at the clamping end. The movable jaw 44 and the fixed jaw 42 are cross-arranged. A rotary connecting part 441 is arranged between the driving end and the clamping end. An installation part 423 for cooperating with the rotary connecting part 441 is arranged on the fixed jaw 42. The movable jaw 44 can be rotatably connected with the fixed jaw 42 through the rotary connecting part 441, and the moving end of the movable jaw driving device 43 can make the movable jaw 44 rotate and swing around the installation part 423.

[0030] By rotating the connection part 441 to cooperate with the installation part 423, and arranging the movable claw 44 and the fixed claw 42 in a crosswise manner, the movement between the movable claw 44 and the fixed claw 42 becomes more stable.

[0031] The jaw mechanism 4 further includes a reset elastic member 45. The movable jaw driving device 43 is a driving cylinder. The moving end of the driving cylinder can push the driving end to make the clamping end move away from the clamping and positioning part of the fixed claw 42. A first reset connection block for cooperating with one end of the reset elastic member 45 is arranged on the clamping end, and a second reset connection block for cooperating with the other end of the reset elastic member 45 is arranged on the fixed claw 42.

[0032] Through the cooperation of the driving cylinder and the reset spring, the clamping efficiency can be effectively improved.

[0033] When the moving end of the driving cylinder extends, the driving end moves, the movable claw 44 rotates around the installation part 423, the clamping and positioning part of the movable claw 44 moves away from the positioning part of the fixed claw 42, and at the same time the reset elastic member 45 deforms, facilitating the clamping of the product.

[0034] When the moving end of the driving cylinder retracts, the movable claw 44 is reset under the action of the reset elastic member 45, and the material is clamped between the positioning parts of the movable claw 44 and the fixed claw 42.

[0035] Obviously, for realizing the opening and closing of the movable claw 44 through the cooperation of the driving cylinder and the reset spring, other methods can also be used for substitution. For example, the moving end of the driving cylinder is hinged to the movable claw 44, and by the contraction of the moving end of the driving cylinder, the swinging of the movable claw 44 can also be controlled to achieve the effect of the above solution.

[0036] The reset elastic member 45 is a reset spring, and the reset effect is achieved through a simple structure.

[0037] The clamping and positioning part of the movable claw 44 is a first positioning groove 442 arranged at the clamping end, and the clamping and positioning part of the fixed claw 42 is a second positioning groove 421 arranged on the fixed claw 42.

[0038] Through the cooperation of the first positioning groove 442 and the second positioning groove 421, the clamping stability of the material can be effectively improved.

[0039] The shape of the first positioning groove 442 is V-shaped, and the opening direction of the first positioning groove 442 is set towards the second positioning groove 421.

[0040] Through the setting of the V-shaped groove, the material can have two fulcrums in the first positioning groove 442, improving the stability of the material in the first positioning groove 442.

[0041] The shape of the second positioning groove 421 is V-shaped, and the opening direction of the second positioning groove 421 is set towards the first positioning groove 442.

[0042] Through the setting of the V-shaped groove, two fulcrums can be formed for the material in the second positioning groove 421, improving the stability of the material in the second positioning groove 421.

[0043] The number of the second positioning grooves 421 is two groups, and the two groups of second positioning grooves 421 are symmetrically and adjacently arranged. Through the setting of the two groups of second positioning grooves 421, the fulcrums in the process of clamping the material can be further increased, improving the clamping accuracy.

[0044] A positioning clearance notch 422 for accommodating the first positioning groove 442 is arranged between the two groups of second positioning grooves 421. Through the reciprocating movement of the first positioning groove 442 in the positioning clearance notch 422, while achieving the effect of positioning the movement accuracy of the first positioning groove 442, the pressure borne by the material in the two groups of positioning grooves can be balanced, further improving the clamping accuracy.

[0045] As can be seen from the above, the beneficial effects of the present utility model are as follows: By adopting its mechanism, the problems existing in the material taking and placing mechanism of the existing fine grinding machine, such as low durability, reduced clamping accuracy, and increased production costs, can be effectively solved. By using the product structure, the movable claw 44 moves, and the fixed claw 42 serves as the reference for clamping and positioning, ensuring the clamping accuracy, delaying the reduction of the clamping accuracy, avoiding the situation of frequently adjusting or replacing the clamping claws, controlling the production cost of the product, and being beneficial to improving the competitiveness of the enterprise.

[0046] The above-mentioned specific implementation manners are the preferred implementation manners of the present utility model, and do not limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to this specific implementation manner. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.

Claims

1. A step precision grinding machine, characterized in that: It includes a manipulator loading and unloading mechanism, a rotary material conveying mechanism and a grinding mechanism. The number of the grinding mechanisms is at least two, and multiple grinding mechanisms are arranged adjacent to each other around the rotary material conveying mechanism. A plurality of gripper mechanisms are arranged on the rotary material conveying mechanism, and the number of the gripper mechanisms is the same as that of the grinding mechanisms. The rotary material conveying mechanism can cooperate with the gripper mechanisms to transfer materials to different grinding mechanisms for processing. The rotary material conveying mechanism can drive the gripper mechanisms to rotate. The gripper mechanism includes a material taking mounting frame, and a movable claw assembly and a fixed claw are fixedly arranged on the material taking mounting frame. The movable claw assembly includes a movable claw driving device and a movable claw. Clamping and positioning parts are arranged at the lower ends of the movable claw and the fixed claw, and the movable claw driving device can change the relative distance between the clamping and positioning parts of the movable claw and the fixed claw.

2. The step finisher according to claim 1, wherein: The rotary material conveying mechanism includes an indexing rotary device and a lifting device. The lifting device is arranged on the indexing rotary device. The indexing rotary device can drive the lifting device to perform indexing rotation. A lifting mounting plate is arranged at the moving end of the lifting device, and a plurality of gripper mechanisms are respectively and fixedly arranged on the lifting mounting plate.

3. The step finisher according to claim 1, wherein: The movable claw includes a driving end and a clamping end. The positioning part is arranged at the clamping end. The movable claw and the fixed claw are arranged in a cross shape. A rotary connecting part is arranged between the driving end and the clamping end. An installation part for cooperatively installing and connecting with the rotary connecting part is arranged on the fixed claw. The movable claw can be rotatably connected with the fixed claw through the rotary connecting part, and the moving end of the movable claw driving device can make the movable claw rotate and swing around the installation part.

4. The step finisher according to claim 3, wherein: It further includes a reset elastic member. The movable claw driving device is a driving cylinder. The moving end of the driving cylinder can push the driving end to make the clamping end move away from the clamping and positioning part of the fixed claw. A first reset connecting block for cooperating with one end of the reset elastic member is arranged at the clamping end, and a second reset connecting block for cooperating with the other end of the reset elastic member is arranged on the fixed claw.

5. The step finisher according to claim 4, characterized in that: The reset elastic member is a reset spring.

6. The step finisher according to claim 3, characterized in that: The clamping and positioning part of the movable claw is a first positioning groove arranged at the clamping end, and the clamping and positioning part of the fixed claw is a second positioning groove arranged on the fixed claw.

7. The step finisher according to claim 6, characterized in that: The shape of the first positioning groove is V-shaped, and the opening direction of the first positioning groove faces the second positioning groove.

8. The step finisher according to claim 7, wherein: The shape of the second positioning groove is V-shaped, and the opening direction of the second positioning groove faces the first positioning groove.

9. The step finisher according to claim 8, wherein: The number of the second positioning grooves is two groups, and the two groups of second positioning grooves are symmetrically and adjacently arranged.

10. The segment difference precision grinder according to claim 9, characterized in that: A positioning clearance notch for accommodating the first positioning groove is arranged between the two groups of second positioning grooves.

Images