High-stability clamp for gear production

Abstract

The utility model discloses a high-stability fixture for gear production, which relates to the technical field of gear processing fixtures, and comprises a base, two oppositely arranged mounting side plates are fixed on the base, one of the mounting side plates is in threaded connection with a clamping screw rod in a penetrating manner, and the other mounting side plate is in threaded connection with the clamping screw rod. The end, located between the two installation side plates, of the clamping screw is rotationally connected with a clamping plate, an installation base is fixed to the inner side of the other installation side plate, a rotary connecting base is rotationally connected to the installation base, and a center positioning ring is installed on the side, close to the clamping plate, of the rotary connecting base. The outer diameter formed by a plurality of ring petals can be changed by changing a plurality of ring petals, gears with center through holes of different sizes can be well adapted, the flexibility of the ring petals is ensured, frequent disassembly and assembly are not needed, the operation is simple and rapid, the problem of loss possibly caused by matching of a plurality of positioning bosses is avoided, and the overall maintenance cost of equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of gear processing fixture technology, and in particular to a high-stability gear production fixture. Background Art

[0002] Gears are usually clamped and fixed during the production process.

[0003] A search revealed a patent document with publication number "CN220311995U" that discloses a fixture for gear production, comprising: a base plate, a bracket 1 and a bracket 2 fixedly mounted on the top of the base plate, a base fixedly mounted on one side of the bracket 1, a rotating seat rotatably connected to the inner cavity of the base, a positioning boss screwed to one end of the rotating seat, a gear fitted to the surface of the positioning boss, a pressure block connected to one end of the gear, a bearing outer diameter fixedly connected to the inner hole of the pressure block, a lead screw fixedly connected to the inner diameter of the bearing, the lead screw being screwed to the middle of the bracket 2, and a handle welded to one end of the lead screw; by utilizing the positioning boss screwed onto the rotating seat, it can be replaced according to the size of the gear through hole, increasing the fixture's flexibility and rapid positioning function, thus achieving a multi-purpose, time-saving, and labor-saving effect.

[0004] In the aforementioned prior art, when positioning and clamping gears with center through holes of different sizes, it is necessary to replace the positioning boss, thus requiring the use of multiple positioning bosses of various models. If multiple gears with different center through hole sizes need to be clamped within a certain period of time, the positioning bosses need to be replaced continuously. This is not only cumbersome to operate, but also prone to loss if the positioning bosses are not properly stored, leading to increased equipment maintenance costs. Therefore, a highly stable gear production fixture is needed. Utility Model Content

[0005] The purpose of this application is to provide a high-stability gear manufacturing fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a high-stability gear production fixture, including a base, on which two opposing mounting side plates are fixed, one of which is threaded with a clamping screw, and the end of the clamping screw located between the two mounting side plates is rotatably connected to a clamping plate, and the other mounting side plate is fixed with a mounting seat, on which a rotating connecting seat is rotatably connected, and a center positioning ring is installed on the side of the rotating connecting seat near the clamping plate;

[0007] The rotating connecting seat has multiple grooves extending radially along the side near the clamping plate.

[0008] The central positioning ring is composed of multiple arc-shaped ring petals. A positioning key is formed on the outer side of one of the ring petals. Connecting blocks are fixed on the inner side of multiple ring petals near the rotating connecting seat. Each of the multiple connecting blocks corresponds to a multiple sliding groove, and the multiple connecting blocks are slidably connected to the multiple sliding grooves through multiple sliding pillars.

[0009] An adjustment mechanism is also installed inside the central positioning ring, which is used to drive multiple ring petals to slide along the slide groove.

[0010] As a further supplement to this plan, the regulating mechanism includes:

[0011] An adjusting screw, one end of which is rotatably connected to the middle of the rotating connecting seat and is coaxially arranged with the rotating connecting seat;

[0012] The movable ring is slidably sleeved on the adjusting screw and is adapted to the adjusting screw;

[0013] Rotary joint, the rotary joint is a U-shaped plate structure, and there are two sets of rotary joints. The two sets of rotary joints are respectively fixed to the circumferential side of the movable ring and the side wall of multiple connecting blocks.

[0014] Support rods, multiple support rods are provided, and the two ends of the multiple support rods are respectively rotatably connected to two sets of rotatable joints at corresponding positions;

[0015] The positioning element is installed on the adjusting screw and is used to limit or release the adjustment screw.

[0016] As a further supplement to this solution, a limiting square hole is provided in the middle of the rotating connecting seat, and a first limiting square groove and a second limiting square groove are respectively provided at both ends of the adjusting screw. The first limiting square groove and the second limiting square groove are connected through a central channel.

[0017] The positioning component includes a drive limiting rod, which includes a round rod, a first square head, and a second square head. The two ends of the round rod are fixed to the first square head and the second square head, respectively. The round rod slides through the central channel. The first square head is slidably embedded in the first limiting square groove, and the second square head is slidably embedded in the second limiting square groove.

[0018] In this configuration, one end of the first square head is movably inserted into the limiting square hole, and at this time, the distance between the end of the first square head located in the first limiting square groove and the inner sidewall of the first limiting square groove is greater than the length of the first square head inserted into the limiting square hole.

[0019] As a further supplement to this solution, an operating handle is fixed on the side of the second square head away from the round rod, and the surface of the operating handle is provided with an anti-slip sleeve.

[0020] As a further supplement to this solution, a retaining ring is fixedly fitted at the end of the adjusting screw that is closer to the rotating connecting seat, with one side of the retaining ring coinciding with the end of the threaded portion on the adjusting screw.

[0021] As a further supplement to this solution, an elastic friction-enhancing layer is fixed on the outer side of each of the multiple rings. When the rings press against the inner wall of the central through hole of the gear, the elastic friction-enhancing layer and the inner wall of the central through hole of the gear are in an interference fit.

[0022] In summary, the technical effects and advantages of this utility model are as follows:

[0023] 1. In this utility model, by adjusting the mechanism to drive multiple ring petals to slide along the slide groove, the outer diameter formed by the multiple ring petals can be changed. This can well adapt to gears with different sizes of central through holes, ensuring their flexibility. At the same time, it does not require frequent disassembly and assembly, making the operation simple and quick. It also avoids the problem of loss that may be caused by matching multiple positioning bosses, reducing the overall maintenance cost of the equipment.

[0024] 2. In this utility model, by setting up an adjustment mechanism, when it is necessary to adjust the position of multiple ring petals to change the outer diameter of the central positioning ring, the operator only needs to rotate the adjustment screw, so that the adjustment screw drives the movable ring to move linearly along the adjustment screw. Then, the support rod drives the connecting block to slide along the slide groove under the limiting action of the sliding column, thereby driving the ring petals to move and change the position of the ring petals. Finally, the purpose of changing the outer diameter formed by multiple ring petals is achieved, which meets the positioning and clamping requirements of gears with different diameters of the central through hole.

[0025] 3. In this utility model, by setting the driving limit rod, when one end of the first square head is movably inserted into the limit square hole, the distance between the end of the first square head located in the first limit square groove and the inner side wall of the first limit square groove is greater than the length of the first square head inserted into the limit square hole. At this time, under the influence of the first square head, it plays a good limiting role on the adjusting screw, so that it cannot rotate.

[0026] When the operator pulls the second square head, causing it to retract completely into the first limiting square groove via the round rod, the limiting on the adjusting screw is released, allowing it to rotate. The operator only needs to rotate the second square head to drive the adjusting screw to rotate via the first square head. This convenient operation integrates limiting and releasing the limiting, ensuring the stable position of multiple ring segments after adjustment and providing a highly stable positioning and clamping effect for the gear. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure in this embodiment;

[0029] Figure 2 This is a side view of the rotating connecting seat, the central positioning ring, and the adjusting mechanism in this embodiment;

[0030] Figure 3 This is a schematic diagram of the rotating connecting seat structure in this embodiment;

[0031] Figure 4 This is a schematic diagram of the adjustment mechanism structure in this embodiment;

[0032] Figure 5 This is a schematic diagram of the adjustment mechanism structure in cross-section of the adjustment screw in this embodiment.

[0033] In the diagram: 1. Base; 2. Mounting side plate; 3. Mounting seat; 4. Rotary connecting seat; 41. Slide groove; 42. Limiting square hole; 5. Center positioning ring; 51. Ring petal; 52. Positioning flat key; 53. Connecting block; 531. Sliding column; 6. Clamping plate; 7. Clamping screw; 8. Adjusting mechanism; 81. Adjusting screw; 811. First limiting square groove; 812. Center channel; 813. Second limiting square groove; 82. Movable ring; 83. Rotary joint; 84. Support rod; 85. Drive limiting rod; 851. Round rod; 852. First square head; 853. Second square head; 86. Operating handle; 87. Retaining ring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example: Reference Figures 1-5The high-stability gear production fixture shown includes a base 1, on which two opposing mounting side plates 2 are fixed. One mounting side plate 2 is threaded through and connected to a clamping screw 7. The end of the clamping screw 7 located between the two mounting side plates 2 is rotatably connected to a clamping plate 6. The inner side of the other mounting side plate 2 is fixed to a mounting seat 3. A rotating connecting seat 4 is rotatably connected to the mounting seat 3. The mounting seat 3 is also provided with a fastening bolt that limits the rotating connecting seat 4, thereby limiting the rotating connecting seat 4 so that it cannot rotate, or releasing the limit on the rotating connecting seat 4, so that the operator can rotate the rotating connecting seat 4 and the clamped gear. A central positioning ring 5 is installed on the side of the rotating connecting seat 4 near the clamping plate 6.

[0036] In use, the gear is positioned and clamped by locking the central through hole of the gear onto the central positioning ring 5, and then by rotating the clamping screw 7, the clamping plate 6 is driven to move closer to the rotating connecting seat 4 and cooperates with the rotating connecting seat 4 to clamp the gear, thus completing the positioning and clamping of the gear.

[0037] The rotating connecting seat 4 has multiple grooves 41 extending radially along the side of the clamping plate 6.

[0038] The central positioning ring 5 is composed of multiple arc-shaped ring petals 51. A positioning key 52 is formed on the outer side of one of the ring petals 51. Connecting blocks 53 are fixed on the inner side of the multiple ring petals 51 near the rotating connecting seat 4. The multiple connecting blocks 53 correspond one-to-one with the multiple sliding grooves 41, and the multiple connecting blocks 53 are slidably connected to the multiple sliding grooves 41 through multiple sliding pillars 531.

[0039] An adjustment mechanism 8 is also installed inside the central positioning ring 5. The adjustment mechanism 8 is used to drive multiple ring petals 51 to slide along the slide groove 41.

[0040] Based on the above structure, when it is necessary to position gears with different sizes of central through holes, the operator only needs to drive multiple ring petals 51 to slide along the slide groove 41 through the adjustment mechanism 8 to change the outer diameter formed by multiple ring petals 51. This can well adapt to gears with different sizes of central through holes, ensuring their flexibility. At the same time, it does not require frequent disassembly and assembly, making the operation simple and quick. It also avoids the problem of loss that may be caused by matching multiple positioning bosses, reducing the overall maintenance cost of the equipment.

[0041] Furthermore, the regulating mechanism 8 includes:

[0042] Adjusting screw 81, one end of which is rotatably connected to the middle of the rotating connecting seat 4 and is coaxially arranged with the rotating connecting seat 4;

[0043] The movable ring 82 is slidably sleeved on the adjusting screw 81 and adapted to the adjusting screw 81;

[0044] Rotary joint 83, which is a U-shaped plate structure, is provided with two sets of rotary joints 83, and the two sets of rotary joints 83 are respectively fixed to the periphery of the movable ring 82 and the side wall of multiple connecting blocks 53.

[0045] Support rod 84, multiple support rods 84 are provided, and the two ends of the multiple support rods 84 are respectively rotatably connected to two sets of rotating joints 83 corresponding to the positions;

[0046] A positioning element is installed on the adjusting screw 81. The positioning element is used to limit or release the adjustment screw 81.

[0047] When it is necessary to adjust the position of multiple ring petals 51 to change the outer diameter of the central positioning ring 5, the operator only needs to rotate the adjusting screw 81, so that the adjusting screw 81 drives the movable ring 82 to move linearly along the adjusting screw 81. Then, the connecting block 53 is driven by the support rod 84 to slide along the slide groove 41 under the limiting action of the sliding column 531, thereby driving the ring petals 51 to move and change the position of the ring petals 51. Finally, the purpose of changing the outer diameter formed by multiple ring petals 51 is achieved, so as to meet the positioning and clamping requirements of gears with different diameters of the central through hole.

[0048] Furthermore, a limiting square hole 42 is provided in the middle of the rotating connecting seat 4, and a first limiting square groove 811 and a second limiting square groove 813 are respectively provided at both ends of the adjusting screw 81. The first limiting square groove 811 and the second limiting square groove 813 are connected through the central channel 812.

[0049] The positioning component includes a drive limiting rod 85, which includes a round rod 851, a first square head 852, and a second square head 853. The two ends of the round rod 851 are fixed to the first square head 852 and the second square head 853, respectively. The round rod 851 slides through the central channel 812. The first square head 852 is slidably embedded in the first limiting square groove 811, and the second square head 853 is slidably embedded in the second limiting square groove 813.

[0050] Based on the above conclusions, combined with Figures 2-5 It can be seen that when one end of the first square head 852 is movably inserted into the limiting square hole 42, the distance between the end of the first square head 852 located in the first limiting square groove 811 and the inner side wall of the first limiting square groove 811 is greater than the length of the first square head 852 inserted into the limiting square hole 42. At this time, under the influence of the first square head 852, it plays a good limiting role on the adjusting screw 81, preventing it from rotating.

[0051] When the operator pulls the second square head 853, causing the first square head 852 to fully retract into the first limiting square groove 811 via the round rod 851, the limiting of the adjusting screw 81 can be released, allowing it to rotate. The operator only needs to rotate the second square head 853 to drive the adjusting screw 81 to rotate via the first square head 852. The operation is convenient and can realize the operation of limiting and releasing the limiting in one step, ensuring that the position of the multiple ring petals 51 remains stable after adjustment, providing a highly stable positioning and clamping effect for the gear.

[0052] Furthermore, an operating handle 86 is fixed on the side of the second square head 853 away from the round rod 851. The surface of the operating handle 86 is provided with an anti-slip sleeve. The operating handle 86 makes it easier for the operator to operate the drive limit rod 85 to move or rotate.

[0053] Furthermore, a retaining ring 87 is fixedly sleeved on the end of the adjusting screw 81 that is close to and away from the rotating connecting seat 4. One side of the retaining ring 87 coincides with the end of the threaded part on the adjusting screw 81. By setting the retaining ring 87, the movement range of the movable ring 82 can be limited, preventing the movable ring 82 from gradually disengaging from the adjusting screw 81 during rotation, thus ensuring the stability of the adjusting mechanism 8 itself.

[0054] Furthermore, an elastic friction-enhancing layer is fixed to the outer side of each of the multiple annular petals 51. The elastic friction-enhancing layer is made of an elastic material commonly used in the prior art and suitable for this embodiment (such as rubber or PVE foam sponge). It has better elastic properties and surface friction coefficient. When the annular petals 51 press against the inner wall of the central through hole of the gear, the elastic friction-enhancing layer is interference-fitted with the inner wall of the central through hole of the gear. By setting the elastic friction-enhancing layer, the inner wall of the central through hole of the gear can be protected to avoid wear, thereby improving the qualification rate of the finished gear after processing.

[0055] The working principle of this utility model is as follows: In daily use, the central through hole of the gear is fixed on the central positioning ring 5, and then the clamping screw 7 is rotated to drive the clamping plate 6 to move closer to the rotating connecting seat 4 and cooperate with the rotating connecting seat 4 to clamp the gear, thereby completing the positioning and clamping of the gear.

[0056] When positioning gears with different sizes of central through holes is required, the operator pulls the operating lever 86, causing it to move the drive limit lever 85 away from the rotating connecting seat 4. This allows the second square head 853 to drive the first square head 852 to fully retract into the first limit square groove 811 via the round rod 851. This releases the limit on the adjusting screw 81, allowing it to rotate. At this point, the operator only needs to rotate the operating lever 86 to drive the adjusting screw 81 through the first square head 852, causing the adjusting screw 81 to drive the movable ring 82 along the adjustment... The linear motion of the screw 81 drives the connecting block 53 to slide along the slide groove 41 under the limiting action of the sliding column 531 via the support rod 84. This causes the ring 51 to move, changing its position and ultimately altering the outer diameter formed by multiple ring 51. This satisfies the positioning and clamping requirements of gears with different central through-hole diameters, ensuring their flexibility. It also eliminates the need for frequent disassembly and assembly, making operation simple and quick. Furthermore, it avoids the potential loss problem that may result from multiple positioning bosses, reducing the overall maintenance cost of the equipment.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-stability gear manufacturing fixture, comprising a base (1), wherein two opposing mounting side plates (2) are fixed on the base (1), a clamping screw (7) is threaded through one of the mounting side plates (2), a clamping plate (6) is rotatably connected to the end of the clamping screw (7) located between the two mounting side plates (2), and a mounting seat (3) is fixed inside the other mounting side plate (2), a rotating connecting seat (4) is rotatably connected to the mounting seat (3), and a center positioning ring (5) is installed on the side of the rotating connecting seat (4) near the clamping plate (6), characterized in that: The rotating connecting seat (4) has multiple grooves (41) extending radially along the side of the clamping plate (6) near the side of the rotating connecting seat (4); The central positioning ring (5) is composed of multiple arc-shaped ring petals (51), one of which has a positioning key (52) on its outer side. Each of the multiple ring petals (51) has a connecting block (53) fixed on its inner side near the rotating connecting seat (4). Each of the multiple connecting blocks (53) corresponds to a multiple sliding groove (41) and the multiple connecting blocks (53) are slidably connected to the multiple sliding grooves (41) through multiple sliding columns (531). An adjustment mechanism (8) is also installed inside the central positioning ring (5), which is used to drive multiple ring petals (51) to slide along the slide groove (41).

2. The high-stability gear manufacturing fixture according to claim 1, characterized in that: The adjustment mechanism (8) includes: Adjusting screw (81), one end of which is rotatably connected to the middle of the rotating connecting seat (4) and is coaxially arranged with the rotating connecting seat (4); The movable ring (82) is slidably sleeved on the adjusting screw (81) and adapted to the adjusting screw (81); Rotary joint (83), the rotary joint (83) is a U-shaped plate structure, the rotary joint (83) is provided in two sets, and the two sets of rotary joints (83) are respectively fixed to the periphery of the movable ring (82) and the side wall of multiple connecting blocks (53); Support rod (84), multiple support rods (84) are provided, and the two ends of the multiple support rods (84) are respectively rotatably connected to two sets of rotating joints (83) corresponding to the positions; A positioning element is installed on the adjusting screw (81) and is used to limit or release the adjustment screw (81).

3. The high-stability gear manufacturing fixture according to claim 2, characterized in that: The rotating connecting seat (4) has a limiting square hole (42) in the middle, and the two ends of the adjusting screw (81) are respectively provided with a first limiting square groove (811) and a second limiting square groove (813). The first limiting square groove (811) and the second limiting square groove (813) are connected through a central channel (812). The positioning component includes a driving limiting rod (85), which includes a round rod (851), a first square head (852), and a second square head (853). The two ends of the round rod (851) are fixed to the first square head (852) and the second square head (853) respectively. The round rod (851) slides through the central channel (812). The first square head (852) is slidably embedded in the first limiting square groove (811), and the second square head (853) is slidably embedded in the second limiting square groove (813). Wherein, one end of the first square head (852) is movably inserted into the limiting square hole (42), and at this time, the distance between the end of the first square head (852) located in the first limiting square groove (811) and the inner side wall of the first limiting square groove (811) is greater than the length of the first square head (852) inserted into the limiting square hole (42).

4. The high-stability gear manufacturing fixture according to claim 3, characterized in that: The second square head (853) is fixed with an operating handle (86) on the side away from the round rod (851), and the surface of the operating handle (86) is provided with an anti-slip sleeve.

5. A high-stability gear manufacturing fixture according to claim 2, characterized in that: A retaining ring (87) is fixedly fitted on the end of the adjusting screw (81) that is close to the rotating connecting seat (4), and one side of the retaining ring (87) coincides with the end of the threaded part on the adjusting screw (81).

6. A high-stability gear manufacturing fixture according to claim 1, characterized in that: An elastic friction-enhancing layer is fixed to the outer side of each of the multiple ring petals (51). When the ring petals (51) press against the inner wall of the central through hole of the gear, the elastic friction-enhancing layer is in an interference fit with the inner wall of the central through hole of the gear.

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