Gear slotting jig

Abstract

The utility model belongs to the technical field of machining, concretely relates to a gear slotting clamp, including rectangular block and gear main part, be equipped with the installation groove on the rectangular block, gear main part sets up in the inside of installation groove, all are equipped with the sliding slot body on the two sides inner wall of installation groove, two sliding slot bodies all are slidably connected with the clamping piece, the first slot body is equipped with in the rectangular block, the first slot body is L type setting, the first slot body is slidably connected with the driving piece, all are equipped with the second slot body on the one side of sliding slot body, two second slot bodies are linked with the first slot body. The utility model discloses through the cooperation of L type slot body and driving piece, can drive two sides clamping piece synchronous action simultaneously, reduces the gear deviation caused by one -sided clamping, and two -way positioning can be completed in one operation, simultaneously, the rectangular plate evenly transmits the thrust to two sides clamping piece, makes the gear outer periphery force symmetry, and then increases the gear position accuracy when slotting processing, reduces the processing error caused by the clamping deformation.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and specifically relates to a fixture for gear grooving. Background Technology

[0002] In the field of machining, gears are important transmission components, and the grooving accuracy of their gears directly affects the stability and reliability of the transmission system. In traditional gear grooving, the clamping accuracy and stability of the fixture have always been key factors restricting the machining quality.

[0003] Early fixtures mostly adopted a single-sided clamping structure, applying pressure to the gear through a single clamping component. This method has obvious drawbacks: on the one hand, the clamping force on one side cannot balance the circumferential force on the gear, and the gear is prone to radial displacement during machining, resulting in a groove width deviation exceeding ±0.1mm, which cannot meet the machining requirements of precision gears (accuracy grade ≥7); on the other hand, the contact area between the planar clamping component and the outer circumferential surface of the gear is limited, and the gear slippage rate is as high as 15% during high-speed cutting (spindle speed >2000r / min), which not only affects the groove profile accuracy but also aggravates tool wear.

[0004] As gear transmissions become increasingly high-speed and precise, the shortcomings of existing fixtures in adapting to multiple specifications are becoming increasingly apparent. Traditional fixtures require a complete change of the clamping structure for gears of different diameters, with changeover times exceeding 30 minutes, making it difficult to meet the needs of small-batch, multi-variety production. Furthermore, the drive mechanisms of traditional fixtures mostly use lever or hydraulic systems, which suffer from complex structures, high maintenance costs (the annual maintenance cost of hydraulic systems is 40% higher than that of mechanical structures), and cumbersome operation, failing to meet the demands of automated production lines for efficient clamping. Utility Model Content

[0005] The purpose of this utility model is to provide a gear grooving fixture. Through the cooperation of the L-shaped groove and the driving component, the clamping components on both sides can be driven to move synchronously, reducing gear offset caused by clamping on one side. Bidirectional positioning can be completed in one operation. At the same time, the rectangular plate evenly transmits the thrust to the clamping components on both sides, so that the outer circumference of the gear is subjected to symmetrical force, thereby increasing the gear position accuracy during grooving and reducing the processing error caused by clamping deformation.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A gear slotting fixture includes a rectangular block and a gear body. The rectangular block has a mounting groove, and the gear body is disposed inside the mounting groove. Sliding grooves are formed on the inner walls of both sides of the mounting groove. Clamping components are slidably connected to each of the two sliding grooves. A first groove, L-shaped, is formed inside the rectangular block, and a driving component is slidably connected to it. A second groove is formed on one side of each sliding groove, and the two second grooves communicate with the first groove. Rectangular plates are slidably connected to each of the two second grooves. One end of each rectangular plate is fixedly connected to the clamping component, and the other end of each rectangular plate abuts against the driving component.

[0008] Furthermore, the clamping member includes an arc-shaped plate, and teeth are fixedly connected to one side of the arc-shaped plate and the side close to the gear body, and the teeth mesh with the periphery of the gear body.

[0009] Furthermore, the driving component includes a push block, which consists of two vertical rods and one horizontal rod. The push block is slidably connected inside the first groove. A screw is threadedly connected to one side of the push block, and the other end of the screw extends to the outside of the rectangular block. A knob is fixedly connected to one end of the screw.

[0010] Furthermore, one end of the rectangular plate is open, and slots are provided on both sides of the rectangular plate. A sliding block is slidably connected inside the rectangular plate, and pressing blocks are installed on both sides of the sliding block. The pressing blocks are engaged inside the slots, and the end of the sliding block away from the pressing block is fixedly connected to one side of the clamping member.

[0011] Furthermore, two tension springs are fixedly connected to each of the two sliding grooves. One end of each tension spring is fixedly connected to the inner wall of the sliding groove, and the other end is fixedly connected to one side of the clamping member.

[0012] Furthermore, a plurality of return springs are fixedly connected to one side of the crossbar, and the other end of the return springs is fixedly connected to the inner wall of the first groove.

[0013] Furthermore, the side where the push block and the rectangular plate abut against each other is an inclined surface.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This utility model discloses a gear grooving fixture that, through the cooperation of an L-shaped groove and a driving component, can simultaneously drive the clamping components on both sides to move synchronously, reducing gear offset caused by clamping on one side. Bidirectional positioning can be completed in one operation. At the same time, the rectangular plate evenly transmits the thrust to the clamping components on both sides, making the outer circumference of the gear symmetrically stressed, thereby increasing the gear position accuracy during grooving and reducing processing errors caused by clamping deformation. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the arc-shaped plate, sliding block, rectangular plate and slot in this utility model;

[0019] Figure 4 This is an exploded view of the arc-shaped plate, sliding block, rectangular plate, and slot in the figure of this utility model;

[0020] Figure 5 This is a utility model Figure 2 Enlarged view of point A in the middle.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Rectangular block; 2. Gear body; 3. Screw; 4. Knob; 5. Pressing block; 6. First groove; 7. Slot; 8. Push block; 9. Crossbar; 10. Second groove; 11. Rectangular plate; 12. Tension spring; 13. Sliding groove; 14. Return spring; 15. Arc plate; 16. Tooth; 17. Sliding block. Detailed Implementation

[0023] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0024] like Figures 1-5 As shown, a gear slotting fixture includes a rectangular block 1 and a gear body 2. The rectangular block 1 has an installation groove, and the gear body 2 is disposed inside the installation groove. Sliding grooves 13 are provided on both inner walls of the installation groove. Clamping components are slidably connected in both sliding grooves 13. A first groove 6 is provided in the rectangular block 1. The first groove 6 is L-shaped and a driving component is slidably connected in the first groove 6. A second groove 10 is provided on one side of each sliding groove 13. The two second grooves 10 are connected to the first groove 6. A rectangular plate 11 is slidably connected in both second grooves 10. One end of the rectangular plate 11 is fixedly connected to the clamping component, and the other end of the two rectangular plates 11 abuts against the driving component.

[0025] In use, when the driving component slides in the L-shaped first groove 6, its movement changes direction through the L-shaped structure. Both ends simultaneously press the rectangular plates 11 in the second grooves 10 on both sides. After being pushed, the rectangular plates 11 move in the direction of the sliding groove 13 in the second groove 10, causing the clamping component fixed thereto to retract inward along the second groove 10, thereby clamping the gear body 2 in the mounting groove. The clamping component continuously applies pressure to maintain the clamping state. When the driving component moves in the opposite direction, the gear body 2 can be released, reducing the gear body 2 offset caused by unilateral clamping. Bidirectional positioning can be completed in one operation, making the outer circumferential surface of the gear body 2 symmetrically stressed, which allows for grooving operation on the surface of the gear body 2, thereby increasing the positional accuracy of the gear body 2 during grooving and reducing processing errors caused by clamping deformation.

[0026] like Figure 2 , Figure 3 , Figure 4 As shown, the clamping component includes an arc-shaped plate 15. A tooth 16 is fixedly connected to one side of the arc-shaped plate 15 and the side closest to the gear body 2. The tooth 16 meshes with the periphery of the gear body 2. In use, when the driving component pushes the rectangular plate 11 to move the arc-shaped plate 15 toward the gear body 2, the tooth 16 on the inner side of the arc-shaped plate 15 will accurately embed into the tooth groove on the periphery of the gear body 2. Through the meshing transmission between the tooth 16 and the tooth groove, the arc-shaped plate 15 automatically centers radially along the gear body 2. At the same time, the curved surface fits the outer periphery of the gear body 2, realizing the rigid positioning of the clamping component and the gear body 2, increasing the inability of the gear body 2 to rotate circumferentially or deviate radially under clamping conditions.

[0027] like Figure 2 As shown, the driving component includes a push block 8, which consists of two vertical rods and one horizontal rod 9. The push block 8 is slidably connected inside the first groove 6. A screw 3 is threadedly connected to one side of the push block 8, and the other end of the screw 3 extends to the outside of the rectangular block 1. A knob 4 is fixedly connected to one end of the screw 3. In use, the screw 3 on the outside of the rectangular block 1 is rotated by the knob 4, and the push block 8 is driven to slide in the L-shaped first groove 6 through the threaded transmission. The push block 8 is a frame structure composed of vertical rods and horizontal rods 9. Its two ends are respectively pressed against the rectangular plates 11 in the second grooves 10 on both sides. When the push block 8 moves along the first groove 6, it will simultaneously push the rectangular plates 11 to drive the arc plate 15 to move towards the gear body 2, so that the teeth 16 are embedded in the tooth groove of the gear body 2 to achieve clamping. When the screw 3 is rotated in the opposite direction, the push block 8 is reset, and the clamping component releases the gear body 2.

[0028] like Figure 3 , Figure 4As shown, one end of the rectangular plate 11 is open, and slots 7 are provided on both sides of the rectangular plate 11. A sliding block 17 is slidably connected inside the rectangular plate 11, and pressing blocks 5 are installed on both sides of the sliding block 17. The pressing blocks 5 are engaged inside the slots 7. The end of the sliding block 17 away from the pressing block 5 is fixedly connected to one side of the clamping component. When using, it is not necessary to disassemble the entire drive system when changing the clamping component. "One-click quick release" is achieved by pressing block 5, which reduces the changeover time and allows the clamping component to be replaced without cumbersome operations, thereby increasing the efficiency of small-batch, multi-variety production.

[0029] like Figure 2 As shown, two tension springs 12 are fixedly connected inside each of the two sliding grooves 13. One end of the tension spring 12 is fixedly connected to the inner wall of the sliding groove 13, and the other end is fixedly connected to one side of the clamping member. In use, when the screw 3 is rotated to drive the push block 8 to move in the clamping direction, the clamping member overcomes the tension of the tension spring 12 and moves towards the gear body 2 until the teeth 16 are embedded in the tooth groove. When the screw 3 is rotated in the opposite direction to reset the push block 8, the tension generated by the contraction of the tension spring 12 drives the clamping member to slide outward along the sliding groove 13, realizing the automatic release action. The two ends of the tension spring 12 are fixed to the inner wall of the sliding groove 13 and the clamping member respectively, and always maintain the reset traction force on the clamping member.

[0030] like Figure 2 As shown, multiple return springs 14 are fixedly connected to one side of the crossbar 9, and the other end of the return spring 14 is fixedly connected to the inner wall of the first groove 6. In use, when the rotating screw 3 pushes the push block 8, the crossbar 9 compresses the return spring 14 and stores elastic potential energy. At the same time, the tension spring 12 is stretched. The push block 8 drives the arc plate 15 to clamp the gear through the rectangular plate 11 and the sliding block 17. The teeth 16 are embedded in the tooth groove. After the screw 3 is rotated in the opposite direction to release the pushing force, the elastic potential energy of the return spring 14 is released, and the push block 8 is quickly pushed to reset. The tension spring 12 contracts synchronously, pulling the arc plate 15 to disengage from the gear, thereby realizing the automatic release of the clamping parts.

[0031] like Figure 2 , Figure 3 Figure 4 As shown, the side where the push block 8 and the rectangular plate 11 meet is an inclined surface. When in use, when the screw 3 pushes the push block 8 to move axially along the first groove 6, the inclined surface of the push block 8 contacts the inclined surface of the rectangular plate 11. The axial thrust is converted into a lateral component force through the wedge effect of the inclined surface. The lateral component force pushes the rectangular plate 11 to move along the second groove 10 towards the gear body 2, causing the arc plate 15 to clamp the gear, so that the teeth 16 are embedded in the tooth groove.

[0032] The working principle of this utility model is as follows: When the driving component slides in the L-shaped first groove 6, its movement changes direction through the L-shaped structure. At the same time, both ends squeeze the rectangular plates 11 in the second grooves 10 on both sides. After being pushed, the rectangular plates 11 move in the direction of the sliding groove 13 in the second groove 10, which drives the clamping component fixed thereto to retract inward along the second groove 10, thereby clamping the gear body 2 in the mounting groove. The clamping component continuously applies pressure to maintain the clamping state. When the driving component moves in the opposite direction, the gear body 2 can be released, reducing the gear body 2 offset caused by unilateral clamping. Bidirectional positioning can be completed in one operation, so that the outer peripheral surface of the gear body 2 is subjected to symmetrical force, and the grooving operation can be performed on the surface of the gear body 2, thereby increasing the positional accuracy of the gear body 2 during grooving and reducing the processing error caused by clamping deformation.

[0033] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A fixture for slotting gears, characterized in that: The device includes a rectangular block (1) and a gear body (2). The rectangular block (1) has an installation groove, and the gear body (2) is disposed inside the installation groove. Sliding grooves (13) are provided on both inner walls of the installation groove. Clamping components are slidably connected in both sliding grooves (13). A first groove (6) is provided inside the rectangular block (1). The first groove (6) is L-shaped and a driving component is slidably connected in the first groove (6). A second groove (10) is provided on one side of each sliding groove (13). The two second grooves (10) are connected to the first groove (6). A rectangular plate (11) is slidably connected in both second grooves (10). One end of each rectangular plate (11) is fixedly connected to the clamping component, and the other end of each rectangular plate (11) abuts against the driving component.

2. The gear slotting fixture according to claim 1, characterized in that: The clamping member includes an arc-shaped plate (15), and teeth (16) are fixedly connected to one side of the arc-shaped plate (15) and the side closer to the gear body (2), and the teeth (16) mesh with the periphery of the gear body (2).

3. The gear slotting fixture according to claim 1, characterized in that: The driving component includes a push block (8), which consists of two vertical rods and one horizontal rod (9). The push block (8) is slidably connected to the inside of the first groove (6). A screw (3) is threadedly connected to one side of the push block (8), and the other end of the screw (3) extends to the outside of the rectangular block (1). A knob (4) is fixedly connected to one end of the screw (3).

4. The gear slotting fixture according to claim 1, characterized in that: The rectangular plate (11) has an opening at one end, and slots (7) are provided on both sides of the rectangular plate (11). A sliding block (17) is slidably connected inside the rectangular plate (11). Pressing blocks (5) are installed on both sides of the sliding block (17). The pressing blocks (5) are engaged inside the slots (7). The end of the sliding block (17) away from the pressing block (5) is fixedly connected to one side of the clamping member.

5. A gear slotting fixture according to claim 1, characterized in that: Two tension springs (12) are fixedly connected inside each of the two sliding grooves (13). One end of each tension spring (12) is fixedly connected to the inner wall of the sliding groove (13), and the other end is fixedly connected to one side of the clamping member.

6. A gear slotting fixture according to claim 3, characterized in that: A plurality of return springs (14) are fixedly connected to one side of the crossbar (9), and the other end of the return springs (14) is fixedly connected to the inner wall of the first groove (6).

7. A gear slotting fixture according to claim 3, characterized in that: The side where the pusher (8) and the rectangular plate (11) meet is an inclined surface.

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