Material taking clamping jaw for segment difference refiner

Abstract

The utility model provides a material taking clamping jaw for a segment difference refiner, which comprises a movable jaw assembly and a fixed jaw, the movable jaw assembly and the fixed jaw are respectively and fixedly arranged on the segment difference refiner, the movable jaw assembly comprises a movable jaw driving device and a movable jaw, and the lower ends of the movable jaw and the fixed jaw are respectively provided with a clamping positioning part. 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. 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 after being used for a long time due to the fact that a parallel clamping jaw air cylinder is adopted, and the clamping precision is prone to being reduced, by using the product structure, the movable jaw moves, the fixed jaw serves as the reference of clamping and positioning, it is guaranteed that the clamping positions are the same every time, and the clamping precision is improved. The consistency of the clamping position is guaranteed, the clamping precision is improved, the situation that the clamping device deviates leftwards or rightwards after being used for a long time is avoided, and the competitiveness of an enterprise is improved advantageously.

Description

Technical Field

[0001] The utility model relates to the technical field of precision tool processing, and particularly relates to a material taking jaw for 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 pre-processed on the outer side wall of the drill needle before edge opening, thus a step precision grinding machine appears.

[0003] Currently, "a rotating material conveying mechanism for a precision grinding machine" (application number: 202210707018.X) is disclosed, which can realize the circumferential transportation of materials, ensure the accurate flow of workpieces between various workstations of the precision grinding machine, and transfer materials through a material picking and placing mechanism during the processing. The material picking and placing mechanism uses a parallel jaw cylinder as the driving part, and the left and right jaws clamp towards the center together. Due to environmental factors and service life, the displacement accuracy of the left and right jaws is prone to decrease unilaterally or bilaterally, resulting in the situation of clamping to the left or right, or even the situation of not being able to clamp. The left and right jaws need to work simultaneously, and the deviation of the clamping accuracy leads to the concentricity problem of material processing, which easily affects the accuracy of the processing process and even the transfer efficiency, and 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 material taking jaw for a step precision grinding machine, which solves the problems that the material picking and placing mechanism of the precision grinding machine in the prior art uses a parallel jaw cylinder and has low durability and easy reduction of clamping accuracy after long-term use.

[0005] A material taking jaw for a step precision grinding machine of the utility model includes a movable jaw assembly and a fixed jaw. The movable jaw assembly and the fixed jaw are respectively fixedly arranged on the step precision grinding machine. 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 movable jaw includes a driving end and a clamping end. The positioning part is arranged at the clamping end. The movable jaw and the fixed jaw are cross-arranged. A rotating connection part is arranged between the driving end and the clamping end. An installation part is arranged on the fixed jaw and is used for cooperating with and installing the rotating connection part. The movable jaw can be rotatably connected to the fixed jaw through the rotating connection part, and the moving end of the movable jaw driving device can make the movable jaw rotate and swing around the installation part.

[0007] The present utility model is further improved and further includes a reset elastic member. The movable claw driving device is a driving cylinder, and the moving end of the driving cylinder can push the driving end to make the clamping end away from the clamping and positioning portion of the fixed claw. A first reset connection block for cooperating with one end of the reset elastic member is arranged on the clamping end, and a second reset connection block for cooperating with the other end of the reset elastic member is arranged on the fixed claw.

[0008] The present utility model is further improved, and the reset elastic member is a reset spring.

[0009] The present utility model is further improved and further includes a rotary bearing. The installation portion is a connecting column arranged at the upper end of the fixed claw, the rotary connection portion is a rotary hole arranged on the movable claw, the rotary bearing is fixedly arranged in the rotary hole, the connecting column is fixedly connected with the center of the rotary bearing, and the rotary bearing can reduce the wear caused by the relative rotation between the movable claw and the fixed claw.

[0010] The present utility model is further improved, the clamping and positioning portion of the movable claw is a first positioning groove arranged at the clamping end, and the clamping and positioning portion of the fixed claw is a second positioning groove arranged 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 arranged 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 arranged 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 arranged 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 material taking and clamping claw for a step precision grinding machine. Adopting this structure can effectively solve the problems that in the prior art, the material taking and placing mechanism of the precision grinding machine uses a parallel clamping claw cylinder, which has low durability after long-term use and is prone to reduce the clamping accuracy. By using the structure of this product, the movable claw moves, and the fixed claw serves as the reference for clamping and positioning, ensuring that the clamping position is the same each time, guaranteeing the consistency of the clamping position, improving the clamping accuracy, and avoiding the situation of deviating to the left or right after long-term use, which is 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 give a brief introduction to the drawings required for use in the description of the embodiments or the prior art. Obviously, the 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 drawings can also be obtained based on these drawings.

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

[0018] Figure 2 For Figure 1 Partial enlarged view of part A in Specific embodiments

[0019] 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-mentioned drawings 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-mentioned drawings are used to distinguish different objects and are not used to describe a specific order.

[0020] 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 phrase appearing in 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.

[0021] In order to enable those skilled in the art of the present 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 with reference to the drawings.

[0022] As Figure 1 And Figure 2 As shown, a material taking jaw for a step precision grinding machine of the present utility model includes a movable jaw assembly and a fixed jaw 1. The movable jaw assembly includes a movable jaw driving device 2 and a movable jaw 3. The movable jaw driving device 2 and the fixed jaw 1 are respectively fixedly arranged on the step precision grinding machine.

[0023] Clamping and positioning parts are arranged at the lower ends of the movable jaw 3 and the fixed jaw 1. The movable jaw driving device 2 can change the relative distance between the clamping and positioning parts of the movable jaw 3 and the fixed jaw 1.

[0024] Adopting a one-moving and one-fixed mode can effectively ensure the clamping accuracy, ensure that the clamped product remains in the centered position, and avoid situations such as unilateral loosening of the clamping jaws or loosening of both clamping jaws after long-term use of traditional parallel clamping jaw cylinders, which may cause the clamping position to be offset to the left or right and affect the machining accuracy.

[0025] The movable jaw 3 includes a driving end and a clamping end. The positioning portion is arranged at the clamping end. The movable jaw 3 and the fixed jaw 1 are cross-arranged. A rotary connection portion 31 is arranged between the driving end and the clamping end. An installation portion 11 for mating and installing connection with the rotary connection portion 31 is arranged on the fixed jaw 1. The movable jaw can be rotatably connected to the fixed jaw 1 through the rotary connection portion 31. The moving end of the movable jaw driving device 2 can cause the movable jaw 3 to rotate and swing around the installation portion 11.

[0026] Through the cooperation of the rotary connection portion 31 and the installation portion 11, and the cross-arrangement of the movable jaw 3 and the fixed jaw 1, the movement between the movable jaw 3 and the fixed jaw 1 is more stable.

[0027] The material taking clamping jaw for the segment difference precision grinding machine further includes a reset elastic member 4. The movable jaw driving device 2 is a driving cylinder. The moving end of the driving cylinder can push the driving end to make the clamping end away from the clamping and positioning portion of the fixed jaw 1. A first reset connection block for cooperating with one end of the reset elastic member 4 is arranged at the clamping end. A second reset connection block for cooperating with the other end of the reset elastic member 4 is arranged on the fixed jaw 1.

[0028] Through the cooperation of the driving cylinder and the reset spring, the clamping efficiency can be effectively improved.

[0029] When the moving end of the driving cylinder extends, the driving end moves, the movable jaw 3 rotates around the rotary connection portion 31, the clamping and positioning portion of the movable jaw 3 moves away from the positioning portion of the fixed jaw 1, and at the same time the reset elastic member 4 deforms, facilitating the clamping of the product.

[0030] When the moving end of the driving cylinder retracts, the movable jaw 3 is reset under the action of the reset elastic member 4, and the material is clamped between the positioning portions of the movable jaw 3 and the fixed jaw 1.

[0031] Obviously, for realizing the opening and closing of the movable jaw 3 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 jaw 3. By the contraction of the moving end of the driving cylinder, the swing of the movable jaw 3 can also be controlled to achieve the effect of the above solution.

[0032] The reset elastic member 4 is a reset spring, and the reset effect is achieved through a simple structure.

[0033] The material-taking jaw for the step precision grinding machine further includes a rotary bearing 5. The installation part 11 is a connecting column arranged at the upper end of the fixed jaw 1, and the rotary connection part 31 is a rotary hole arranged on the movable jaw 3. The rotary bearing 5 is fixedly arranged in the rotary hole, and the connecting column is fixedly connected to the center of the rotary bearing 5.

[0034] Through the arrangement of the rotary bearing 5, the wear caused by the relative rotation between the movable jaw and the fixed jaw can be effectively reduced.

[0035] The clamping and positioning part of the movable jaw 3 is a first positioning groove 32 arranged at the clamping end, and the clamping and positioning part of the fixed jaw 1 is a second positioning groove 12 arranged on the fixed jaw 1.

[0036] Through the cooperation of the first positioning groove 32 and the second positioning groove 12, the stability of the material clamping can be effectively improved.

[0037] The shape of the first positioning groove 32 is V-shaped, and the opening direction of the first positioning groove 32 is set towards the second positioning groove 12.

[0038] Through the arrangement of the V-shaped groove, the material can have two fulcrums in the first positioning groove 32, improving the stability of the material in the first positioning groove 32.

[0039] The shape of the second positioning groove 12 is V-shaped, and the opening direction of the second positioning groove 12 is set towards the first positioning groove 32.

[0040] Through the arrangement of the V-shaped groove, the material can have two fulcrums in the second positioning groove 12, improving the stability of the material in the second positioning groove 12.

[0041] The number of the second positioning grooves 12 is two groups, and the two groups of second positioning grooves 12 are symmetrically and adjacently arranged. Through the arrangement of the two groups of second positioning grooves 12, the fulcrums in the material clamping process can be further increased, improving the clamping accuracy.

[0042] A positioning clearance notch 13 for accommodating the first positioning groove 32 is arranged between the two groups of second positioning grooves 12. Through the back-and-forth movement of the first positioning groove 32 in the positioning clearance notch 13, while achieving the effect of positioning the movement accuracy of the first positioning groove 32, the pressure borne by the material in the two groups of positioning grooves can be balanced, further improving the clamping accuracy.

[0043] As can be seen from the above, the beneficial effects of the present utility model are as follows: By adopting its mechanism, it can effectively solve the problems existing in the material loading and unloading mechanism of the fine grinder in the prior art. When using a parallel jaw cylinder, there are problems such as low durability and easy reduction of clamping accuracy after long-term use. By using the structure of this product, the movable jaw 3 moves, and the fixed jaw 1 serves as the reference for clamping and positioning, ensuring that the clamping position is the same each time, guaranteeing the consistency of the clamping position, improving the clamping accuracy, avoiding the situation of being biased left or right after long-term use, and being beneficial to improving the competitiveness of the enterprise.

[0044] 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 thereby. 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 pick-up jaw for a step precision grinding machine, characterized in that: It includes a movable claw assembly and a fixed claw. The movable claw assembly and the fixed claw are respectively fixedly arranged on a step precision grinder. 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 pick-up jaw for a step precision grinding machine according to claim 1, characterized in that: 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 manner. A rotary connection part is arranged between the driving end and the clamping end. An installation part is arranged on the fixed claw and is installed and connected in cooperation with the rotary connection part. The movable claw can be rotatably connected to the fixed claw through the rotary connection part, and the moving end of the movable claw driving device can make the movable claw rotate and swing around the installation part.

3. The pick-up jaw for the step finisher according to claim 2, characterized in that: 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 connection block is arranged at the clamping end and is matched with one end of the reset elastic member. A second reset connection block is arranged on the fixed claw and is matched with the other end of the reset elastic member.

4. The pick-up jaw for the step finisher according to claim 3, characterized in that: The reset elastic member is a reset spring.

5. The pick-up jaw for a step precision grinding machine according to claim 2, characterized in that: It further includes a rotary bearing. The installation part is a connecting column arranged at the upper end of the fixed claw. The rotary connection part is a rotary hole arranged on the movable claw. The rotary bearing is fixedly arranged in the rotary hole. The connecting column is fixedly connected to the center of the rotary bearing. The rotary bearing can reduce the wear caused by the relative rotation between the movable claw and the fixed claw.

6. The pick-up jaw for the step finisher according to claim 2, characterized in that: The clamping and positioning part of the movable claw is a first positioning groove arranged at the clamping end. The clamping and positioning part of the fixed claw is a second positioning groove arranged on the fixed claw.

7. The pick-up jaw for 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 is set towards the second positioning groove.

8. The pick-up jaw for the step finisher according to claim 7, characterized in that: 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.

9. The pick-up gripper for the step precision grinding machine according to claim 8, characterized in that: 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 pick-up gripper for the step finisher 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.

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