Clamp special for annular forge piece

Abstract

The utility model discloses a special clamp for an annular forge piece, and belongs to the technical field of ball mills. The clamp comprises a base, a plurality of guide grooves are formed in the base, the guide grooves are located on different radiuses in the same circle respectively, a clamping piece is slidably connected into each guide groove, and the base is provided with a driving mechanism used for driving the clamping pieces to synchronously slide in the guide grooves. Wherein one clamping piece is provided with a pressing mechanism used for pressing the forge piece on the base. The driving mechanism can synchronously drive all the clamping pieces to slide in the radius direction in the same circle and finally abut against the inner side of the annular forge piece, so that the forge piece can be fixed and positioned at the same time, the forge piece can be pressed on the base through the pressing mechanism, jumping of the forge piece is prevented, and the machining efficiency is improved. The clamping piece and the pressing mechanism can operate synchronously through the linkage mechanism, and the clamping efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball mills, in particular to a special clamp for annular forgings. Background Art

[0002] When clamping annular forgings, a mechanism such as a three-jaw chuck can usually be used to press the inner and outer circles of the annular forging, which can simultaneously fix and position the annular forging. However, these traditional clamps lack axial fixation of the annular forging and are prone to jumping during the forging process, affecting the forging quality. Therefore, a new type of clamp is needed to solve this problem. Utility Model Content

[0003] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the description and other drawings.

[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a special clamp for annular forgings.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is: a special clamp for annular forgings, including a base, the base is provided with a plurality of guide grooves, the plurality of guide grooves are respectively located at different radii within the same circle, each of the guide grooves is slidably connected to a clamping member, the base is provided with a driving mechanism for driving each of the clamping members to slide synchronously in the guide groove, and one of the clamping members is provided with a clamping mechanism for pressing the forging onto the base.

[0006] By adopting the above technical solution, the driving mechanism can simultaneously drive all the clamping members to slide synchronously, so that the annular forging can be supported from the inner side thereof. Since a plurality of clamping members are provided, the displacement of the annular forging in all directions can be realized simultaneously, and since the clamping members are located on the radius of the same circle, the centering of the annular forging can also be completed synchronously. When the clamping members clamp the annular forging, the clamping mechanism located on one of the clamping members will also move synchronously, and the annular forging will be pressed against the base at the same time. The positioning and fixation of the annular forging is achieved by the above method, and the clamping mechanism prevents the forging from jumping during the forging process, thereby making the forging position more precise.

[0007] Preferably, the drive mechanism includes a drive disc and a motor, the drive disc being provided with a plurality of drive slots, the number of the drive slots being the same as the number of the clamping members, each of the clamping members being respectively embedded in a respective drive slot, the drive disc being rotationally connected to the base, the motor being fixedly connected to the base, and the output shaft of the motor being transmission-connected to the drive disc. The utility model utilizes the drive slots on the drive disc so that when the drive disc rotates driven by the motor, it can push the clamping members to slide along the guide slots. Each group of clamping members is embedded in a respective drive slot, so that when the drive disc rotates, it can achieve the effect of synchronously driving all the clamping members.

[0008] Preferably, the clamping mechanism includes a pressure plate and a drive rod, the pressure plate is connected to the drive rod, the drive rod is in transmission connection with the clamping member, and the base is provided with a linkage mechanism that drives the drive rod to move up and down through the displacement of the clamping member. The utility model utilizes the linkage mechanism to enable the drive rod to move upward or downward during the sliding process of the clamping member. When the clamping member slides in the direction of the fixed forging, the drive rod will move downward. When the clamping member presses against the forging, the pressure plate is pressed against the forging to achieve compression of the forging. When the clamping member moves away from the forging, the drive rod drives the pressure plate to move upward, so that the pressure plate is separated from the forging.

[0009] Preferably, the linkage mechanism includes a gear and a rack, the clamping member is rotatably connected to the base, the clamping member is threadedly connected to the drive rod, the rack is fixedly connected to the base, the gear and the rack are meshed with each other, and the base is provided with a limiting mechanism for limiting the rotation of the drive rod. The utility model utilizes the mutual meshing of the gear and the rack so that the clamping member rotates under the drive of the gear and the rack during linear motion, while the drive rod cannot rotate under the restriction of the limiting mechanism. Therefore, the drive rod moves in the vertical direction under the action of the thread, thereby realizing the mutual linkage between the clamping member and the drive rod. In this way, the positioning and pressing of the annular forging can be carried out synchronously, thereby accelerating the clamping efficiency.

[0010] Preferably, the limiting mechanism includes a limiting rod and a limiting member, wherein the limiting rod is fixedly connected to the driving rod, the limiting member is fixedly connected to the base, the limiting member is provided with a limiting groove, the limiting rod is inserted into the limiting groove, and the limiting rod is slidably connected to the limiting groove. The limiting rod of the utility model has a square cross-section, and by inserting the limiting rod into the limiting groove of the limiting member, the rotation of the driving rod can be restricted, so that when the clamping member rotates, the driving rod can overcome the friction between the threaded pairs and move up and down, while the limiting rod can slide in the limiting groove, so that the linear motion of the clamping member is not affected.

[0011] Preferably, the driving rod includes a mother rod and a child rod, the child rod and the mother tube are slidably connected to each other, an elastic member 1 is provided between the child rod and the mother rod, and the pressure plate is connected to the child rod. The utility model utilizes the elastic member 1 between the child rod and the mother tube so that after the pressure plate is pressed against the forging, the mother tube can overcome the elastic force of the elastic member 1 and continue to move downward under the action of the thread, and the elastic force of the elastic member 1 is utilized to achieve the pressure of the pressure plate on the forging. In this way, after the pressure plate contacts the forging, the clamping member can continue to move forward until it presses against the inner side of the annular forging, ensuring that both the pressure plate and the clamping member can press against the forging, thereby ensuring the fixing effect.

[0012] Preferably, the pressing plate is rotatably connected to a roller. The utility model utilizes the roller to ensure that after the pressing plate is pressed against the forging, the forging will not be scratched as the clamping piece continues to move.

[0013] Preferably, the pressing plate is slidably connected to the driving rod, and the driving rod is threadedly connected to a limit nut for sliding the pressing plate. The present invention utilizes the sliding connection between the clamping member and the driving rod to further adjust the position of the pressing plate according to the thickness of the forging, thereby adapting to a wider range of occasions. The limit nut can limit the upward sliding range of the pressing plate, allowing it to press the forging tightly.

[0014] Preferably, a second elastic member is provided between the pressing plate and the clamping member. The utility model utilizes the second elastic member to keep the pressing plate in contact with the limiting nut, so that the pressing plate does not slide when the limiting nut is not rotated, thereby preventing the pressing plate from being easily worn.

[0015] In summary, the beneficial effects of the present invention are:

[0016] 1. The driving mechanism can synchronously drive all clamps to slide along the radius of the same circle and finally press against the inner side of the annular forging, thereby simultaneously fixing and positioning the forging. The clamping mechanism can press the forging against the base to prevent it from jumping. The linkage mechanism enables the clamping parts and the clamping mechanism to operate synchronously, thereby speeding up the clamping efficiency.

[0017] 2. By utilizing the elastic member 1 between the sub-rod and the mother tube, after the pressure plate is pressed against the forging, the mother tube can overcome the elastic force of the elastic member 1 and continue to move downward under the action of the thread. The elastic force of the elastic member 1 is utilized to realize the pressure of the pressure plate on the forging. In this way, after the pressure plate contacts the forging, the clamping member can continue to move forward until it is pressed against the inner side of the annular forging, ensuring that both the pressure plate and the clamping member can press against the forging to ensure the fixing effect.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0019] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments with reference to various drawings and figures.

[0020] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, one or more preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0022] In the drawings, like components are given like reference numerals, and the drawings are schematic and not necessarily drawn to scale.

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only one or several embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying any creative work.

[0024] Figure 1 Schematic diagram of the overall structure Figure 1 ;

[0025] Figure 2 Schematic diagram of the overall structure Figure 2 ;

[0026] Figure 3 It is a structural diagram of the linkage mechanism;

[0027] Figure 4 It is a schematic diagram of the cross-section structure.

[0028] Explanation of the main reference numerals: 1. base; 2. guide groove; 3. clamping member; 4. driving disk; 5. motor; 6. driving groove; 7. pressure plate; 8. driving rod; 9. gear; 10. rack; 11. limiting rod; 12. limiting member; 13. limiting groove; 14. mother rod; 15. child rod; 16. roller; 17. limiting nut; 18. elastic member 2; 19. forging; 20. elastic member 1. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but are not intended to limit the present invention.

[0030] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In this utility model, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or interaction between two components. However, the term "direct connection" indicates that the two connected entities are not connected through a transition structure, but are connected solely through a connecting structure to form a single entity. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0033] like Figure 1-4As shown, a special clamp for an annular forging 19 includes a base 1, and the base 1 is provided with a plurality of guide grooves 2. The plurality of guide grooves 2 are respectively located at different radii within the same circle. A clamping member 3 is slidably connected in each guide groove 2. The base 1 is provided with a driving mechanism for driving each clamping member 3 to slide synchronously in the guide groove 2. One of the clamping members 3 is provided with a clamping mechanism for pressing the forging 19 onto the base 1.

[0034] By adopting the above technical solution, the driving mechanism can simultaneously drive all the clamping members 3 to slide synchronously, so that the annular forging 19 can be supported from the inner side thereof. Since a plurality of clamping members 3 are provided, the displacement of the annular forging 19 in all directions can be realized at the same time. Moreover, since the clamping members 3 are located on the radius of the same circle, the centering of the annular forging 19 can also be completed synchronously. When the clamping members 3 clamp the annular forging 19, the clamping mechanism on one of the clamping members will also move synchronously, and the annular forging 19 will be pressed against the base 1. The positioning and fixation of the annular forging 19 are achieved in the above manner. The clamping mechanism prevents the forging 19 from jumping during the forging process, thereby making its forging position more precise.

[0035] The drive mechanism includes a drive disc 4 and a motor 5. The drive disc 4 is provided with a plurality of drive slots 6. The number of drive slots 6 is the same as the number of clamping members 3. Each clamping member 3 is respectively embedded in a drive slot 6. The drive disc 4 is rotationally connected to the base 1. The motor 5 is fixedly connected to the base 1. The output shaft of the motor 5 is in driving connection with the drive disc 4. The drive slots 6 on the drive disc 4 are used so that when the drive disc 4 rotates under the drive of the motor 5, it can push the clamping members 3 to slide along the guide groove 2. Each group of clamping members 3 is embedded in a drive slot 6. Therefore, when the drive disc 4 rotates, it can achieve the effect of synchronously driving all clamping members 3.

[0036] The clamping mechanism includes a pressing plate 7 and a driving rod 8. The pressing plate 7 is connected to the driving rod 8, which is in transmission connection with the clamping member 3. The base 1 is provided with a linkage mechanism that drives the driving rod 8 to move up and down through the displacement of the clamping member 3. The linkage mechanism enables the clamping member 3 to drive the driving rod 8 to move upward or downward during its sliding process. When the clamping member 3 slides toward the fixed forging 19, the driving rod 8 moves downward. When the clamping member 3 presses against the forging 19, the pressing plate 7 is pressed against the forging 19, thereby clamping the forging 19. When the clamping member 3 moves away from the forging 19, the driving rod 8 drives the pressing plate 7 to move upward, separating the pressing plate 7 from the forging 19.

[0037] The linkage mechanism includes a gear 9 and a rack 10. The clamping member 3 is rotatably connected to the base 1. The clamping member 3 is threadedly connected to the drive rod 8. The rack 10 is fixedly connected to the base 1. The gear 9 and the rack 10 are meshed with each other. The base 1 is provided with a limit mechanism for limiting the rotation of the drive rod 8. By utilizing the mutual meshing of the gear 9 and the rack 10, the clamping member 3 rotates under the drive of the gear 9 and the rack 10 during the linear motion, while the drive rod 8 cannot rotate due to the restriction of the limit mechanism. Therefore, the drive rod 8 moves in the vertical direction under the action of the thread, thereby realizing the mutual linkage between the clamping member 3 and the drive rod 8. In this way, the positioning and pressing of the annular forging 19 can be carried out synchronously, thereby accelerating the clamping efficiency.

[0038] The limiting mechanism includes a limiting rod 11 and a limiting member 12. The limiting rod 11 is fixedly connected to the drive rod 8, and the limiting member 12 is fixedly connected to the base 1. The limiting member 12 defines a limiting slot 13, into which the limiting rod 11 is inserted, and the limiting rod 11 is slidably connected to the limiting slot 13. The limiting rod 11 has a square cross-section. By inserting the limiting rod 11 into the limiting slot 13 of the limiting member 12, the driving rod 8 can be restricted from rotating. As a result, when the clamping member 3 rotates, the driving rod 8 can overcome the friction between the threaded pairs and move up and down. At the same time, the limiting rod 11 can slide within the limiting slot 13, so that the linear motion of the clamping member 3 is not affected.

[0039] The driving rod 8 includes a mother rod 14 and a child rod 15. The child rod 15 is slidably connected to the mother tube. An elastic member 20 is provided between the child rod 15 and the mother rod 14. The pressure plate 7 is connected to the child rod 15. The elastic member 20 between the child rod 15 and the mother tube allows the mother tube to continue to move downward under the action of the thread after the pressure plate 7 presses against the forging 19, overcoming the elastic force of the elastic member 20. The elastic force of the elastic member 20 is used to apply pressure to the forging 19 by the pressure plate 7. In this way, after the pressure plate 7 contacts the forging 19, the clamping member 3 can continue to move forward until it presses against the inner side of the annular forging 19, ensuring that both the pressure plate 7 and the clamping member 3 press against the forging 19 and ensuring a secure fixation effect.

[0040] The pressing plate 7 is rotatably connected to a roller 16. The roller 16 can be used to press the pressing plate 7 against the forging 19, and the forging 19 will not be scratched as the clamping member 3 continues to move.

[0041] The pressure plate 7 is slidably connected to the drive rod 8, which is threaded with a limit nut 17 for sliding the pressure plate 7. The sliding connection between the clamp 3 and the drive rod 8 allows the position of the pressure plate 7 to be further adjusted according to the thickness of the forging 19, thereby adapting to a wider range of situations. The limit nut 17 can limit the upward sliding range of the pressure plate 7, allowing it to press the forging 19 tightly.

[0042] A second elastic member 18 is provided between the pressing plate 7 and the clamping member 3. The second elastic member 18 can keep the pressing plate 7 in contact with the limiting nut 17, so that the pressing plate 7 does not slide when the limiting nut 17 is not rotated, thereby preventing the pressing plate 7 from being easily worn.

[0043] It should be noted that many specific details are set forth in the above description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

Claims

1. A special fixture for annular forgings (19), comprising a base (1), characterized in that: The base (1) is provided with a plurality of guide grooves (2), and the plurality of guide grooves (2) are respectively located at different radii within the same circle. A clamping member (3) is slidably connected in each guide groove (2). The base (1) is provided with a driving mechanism for driving each clamping member (3) to slide synchronously in the guide groove (2), and a pressing mechanism for pressing a forging (19) onto the base (1) is provided on one of the clamping members (3).

2. The special fixture for annular forgings (19) according to claim 1, characterized in that: The driving mechanism comprises a driving disc (4) and a motor (5); a plurality of driving slots (6) are provided on the driving disc (4); the number of the driving slots (6) is the same as the number of the clamping members (3); each of the clamping members (3) is respectively embedded in each driving slot (6); the driving disc (4) is rotationally connected to the base (1); the motor (5) is fixedly connected to the base (1); and the output shaft of the motor (5) is transmission-connected to the driving disc (4).

3. The special fixture for annular forgings (19) according to claim 1, characterized in that: The clamping mechanism comprises a pressing plate (7) and a driving rod (8), wherein the pressing plate (7) is connected to the driving rod (8), and the driving rod (8) is transmission-connected to the clamping member (3). The base (1) is provided with a linkage mechanism for driving the driving rod (8) to move up and down through the displacement of the clamping member (3).

4. The special fixture for annular forgings (19) according to claim 3, characterized in that: The linkage mechanism comprises a gear (9) and a rack (10); the clamping member (3) is rotatably connected to the base (1); the clamping member (3) is threadedly connected to the driving rod (8); the gear (9) is fixedly connected to the clamping member (3); the rack (10) is fixedly connected to the base (1); the gear (9) and the rack (10) are meshed with each other; and the base (1) is provided with a limiting mechanism for limiting the rotation of the driving rod (8).

5. The special fixture for annular forgings (19) according to claim 4, characterized in that: The limiting mechanism comprises a limiting rod (11) and a limiting member (12), wherein the limiting rod (11) is fixedly connected to the driving rod (8), and the limiting member (12) is fixedly connected to the base (1), and the limiting member (12) is provided with a limiting groove (13), the limiting rod (11) is inserted into the limiting groove (13), and the limiting rod (11) is slidably connected to the limiting groove (13).

6. The special fixture for annular forgings (19) according to claim 3, characterized in that: The driving rod (8) includes a mother rod (14) and a sub-rod (15), the sub-rod (15) and the mother tube are slidably connected to each other, an elastic member (20) is provided between the sub-rod (15) and the mother rod (14), and the pressure plate (7) is connected to the sub-rod (15).

7. The special fixture for annular forgings (19) according to claim 6, characterized in that: The pressing plate (7) is rotatably connected to a roller (16).

8. The special fixture for annular forgings (19) according to claim 3, characterized in that: The pressing plate (7) is slidably connected to the driving rod (8), and the driving rod (8) is threadedly connected with a limiting nut (17) for sliding the pressing plate (7).

9. The special fixture for annular forgings (19) according to claim 8, characterized in that: A second elastic member (18) is provided between the pressing plate (7) and the clamping member (3).

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