Positioning clamp for precision cast steel gear machining

Abstract

The utility model relates to the technical field of precision gear machining, and discloses a positioning clamp for precision cast steel gear machining, which comprises a workbench, a machining mechanism is arranged on the workbench, a vertical rod is fixedly arranged on the bottom wall of the workbench, a sliding block is connected to the workbench in a sliding manner, a clamping mechanism is arranged on the sliding block, and the vertical rod is fixedly arranged on the bottom wall of the workbench. An adjusting mechanism is arranged on the outer wall of the vertical rod, the clamping mechanism comprises an adjusting block, and the adjusting block is in sliding connection with the inner wall of the sliding block. According to the positioning clamp for precision cast steel gear machining, the inner wall of a gear can be clamped through a clamping plate in the clamping mechanism, meanwhile, the upper end of a supporting rod is extruded through an extrusion rod, the supporting rod can drive an end supporting block to rotate around a rotating rod, and the supporting block and the outer wall of the workbench are extruded and attached; and the sliding block cannot continue to move leftwards, and the situation that the outer wall is scratched due to the fact that the clamping plate continues to clamp the interior of the gear is prevented.

Description

Technical Field

[0001] This utility model relates to the field of precision gear machining technology, specifically a positioning fixture for machining precision cast steel gears. Background Technology

[0002] Fine gear machining is a high-precision machining process that primarily transforms raw materials into small gears with precise tooth profiles and pitches. It utilizes specialized gear machining equipment, such as gear cutting machines and gear grinding machines, and employs techniques like cutting, grinding, or hobbing to process and dress the gears. Due to its high precision, this machining process is widely used in precision machinery across various industries. It plays a crucial role in improving transmission accuracy and efficiency, as well as expanding its application areas.

[0003] Gears need to be clamped and fixed during the machining process, but existing fixtures cannot control the clamping force during use. When the clamping force is too large, the outer wall of the precision gear may be damaged during the clamping process, which will affect the accuracy of the precision gear. Therefore, we need a positioning fixture for machining precision cast steel gears. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning fixture for machining precision cast steel gears, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for machining precision cast steel gears, comprising a worktable, a machining mechanism mounted on the worktable, a vertical rod fixedly mounted on the bottom wall of the worktable, a slider slidably connected to the worktable, a clamping mechanism mounted on the slider, and an adjustment mechanism mounted on the outer wall of the vertical rod. The clamping mechanism includes:

[0006] An adjusting block is slidably connected to the inner wall of the slider. The side wall of the adjusting block is fixedly connected to one end of a bearing spring, and the other end of the bearing spring is fixedly connected to the inner wall of the slider. The adjusting block can be slidably reset by the elastic force of the bearing spring.

[0007] A connecting rod is provided, one end of which is fixedly connected to the outer wall of the adjusting block. A clamping plate is fixedly installed on the other end of the connecting rod. The clamping plate is arc-shaped and can be driven by the adjusting block to clamp and fix the inner wall of the gear.

[0008] Preferably, a rotating rod is rotatably connected to the outer wall of the slider. The outer wall of the rotating rod is fixedly connected to one end of a torsion spring, and the other end of the torsion spring is fixedly connected to the outer wall of the slider. The spring force of the torsion spring can cause the rotating rod to drive the support block at the end of the support rod to rotate and reset.

[0009] Preferably, a support rod is fixedly installed on the outer wall of the rotating rod. The support rod is bent and a support block is fixedly installed at the end of the support rod. The support rod drives the end support block to press and fit against the outer wall of the worktable, which can prevent the slider from moving to the left.

[0010] Preferably, a pressing rod is fixedly installed on the outer wall of the adjusting block, the pressing rod is configured to be bent, and the pressing rod is located on the side of the support rod.

[0011] Preferably, the adjusting mechanism includes a collar that is slidably sleeved on the outer wall of the vertical rod. The collar is internally threaded with a fastening bolt, and the position of the collar can be fixed by tightening the fastening bolt.

[0012] Preferably, the collar is hinged to one end of the support rod, and the other end of the support rod is hinged to the bottom wall of the slider.

[0013] Compared with the prior art, this utility model provides a positioning fixture for precision cast steel gear machining, which has the following advantages:

[0014] 1. This positioning fixture for precision cast steel gear machining uses a clamping plate in the clamping mechanism to clamp the inner wall of the gear. At the same time, the pressing rod presses the upper end of the support rod, causing the support rod to drive the end support block to rotate around the rotating rod. By pressing and fitting the support block against the outer wall of the worktable, the slider can be prevented from continuing to move to the left, thus preventing the clamping plate from continuing to clamp the inside of the gear and causing the outer wall to be scratched.

[0015] 2. This positioning fixture for precision cast steel gear machining uses an upward movement of the collar in the adjustment mechanism to press the bottom end of the support rod, which allows the slider to move away from the center of the worktable. This facilitates quick adjustment of the slider's position and fixes the gear in place with the clamping plate. At the same time, tightening the fastening bolts can fix the position of the collar, enabling the four sets of clamping plates to stably clamp the gear. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0017] Figure 2 This utility model Figure 1 Enlarged schematic diagram of structure A in the middle;

[0018] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the B-structure;

[0019] Figure 4 This utility model Figure 1 Enlarged schematic diagram of the C-structure;

[0020] Figure 5 This is a partial structural diagram of the present utility model.

[0021] In the diagram: 1. Workbench; 2. Machining mechanism; 3. Vertical rod; 4. Slider; 5. Clamping mechanism; 51. Adjusting block; 52. Connecting rod; 53. Clamping plate; 54. Bearing spring; 55. Extrusion rod; 56. Rotating rod; 57. Torsion spring; 58. Support rod; 59. Support block; 6. Adjusting mechanism; 61. Collar; 62. Support rod; 63. Fastening bolt. Detailed Implementation

[0022] like Figures 1-5 As shown, this utility model provides a technical solution: a positioning fixture for machining precision cast steel gears, including a worktable 1, a machining mechanism 2 on the worktable 1, a vertical rod 3 fixedly installed on the bottom wall of the worktable 1, a slider 4 slidably connected to the worktable 1, a clamping mechanism 5 on the slider 4, and an adjustment mechanism 6 on the outer wall of the vertical rod 3.

[0023] In this embodiment, the slider 4 is provided with a clamping mechanism 5. The clamping plate 53 in the clamping mechanism 5 can clamp the inner wall of the gear. At the same time, the pressing rod 55 presses the upper end of the support rod 58, which can cause the support rod 58 to drive the end support block 59 to rotate around the rotating rod 56. The support block 59 is pressed and adhered to the outer wall of the worktable 1, which can prevent the slider 4 from continuing to move to the left and prevent the clamping plate 53 from continuing to clamp the inside of the gear, which would cause the outer wall to be scratched.

[0024] In this embodiment, an adjustment mechanism 6 is provided on the outer wall of the vertical rod 3. By moving the collar 61 in the adjustment mechanism 6 upward, it can press the bottom end of the support rod 62, which can make the slider 4 move away from the middle position of the worktable 1. This facilitates the quick adjustment of the position of the slider 4, so that the clamping plate 53 can fix the gear. At the same time, by tightening the fastening bolt 63, the position of the collar 61 can be fixed, so that the four sets of clamping plates 53 can stably clamp the gear.

[0025] The aforementioned clamping mechanism 5 includes an adjusting block 51, which is slidably connected to the inner wall of the slider 4. The side wall of the adjusting block 51 is fixedly connected to one end of a bearing spring 54, and the other end of the bearing spring 54 is fixedly connected to the inner wall of the slider 4. The elastic force of the bearing spring 54 allows the adjusting block 51 to slide and reset. The side wall of the adjusting block 51 is fixedly connected to one end of a connecting rod 52, and a clamping plate 53 is fixedly mounted on the other end of the connecting rod 52. The clamping plate 53 is arc-shaped, and the adjusting block 51 can drive the clamping plate 53 at the end of the connecting rod 52 to clamp the inner wall of the gear. A rotating rod 56 is rotatably connected to the outer wall of the slider 4. The outer wall of the rotating rod 56 is fixedly connected to one end of a torsion spring 57, and the other end of the torsion spring 57 is fixedly connected to the outer wall of the slider 4. The elastic force of 7 enables the rotating rod 56 to drive the support block 59 at the end of the support rod 58 to reset. The support rod 58 is fixedly installed on the outer wall of the rotating rod 56. The support rod 58 is bent. The support block 59 is fixedly installed at the end of the support rod 58. The support rod 58 drives the end support block 59 to press and fit against the outer wall of the worktable 1, which prevents the slider 4 from continuing to move to the left and prevents the clamping plate 53 from continuing to clamp the inside of the gear, causing the outer wall to be scratched. The pressing rod 55 is fixedly installed on the outer wall of the adjusting block 51. The pressing rod 55 is bent. The pressing rod 55 is located on the side of the support rod 58. The adjusting block 51 drives the pressing rod 55 to press the upper end of the support rod 58, which enables the support rod 58 to drive the end support block 59 to rotate around the rotating rod 56.

[0026] The aforementioned adjustment mechanism 6 includes a collar 61, which is slidably sleeved on the outer wall of the vertical rod 3. The collar 61 is internally threaded with a fastening bolt 63. By tightening the fastening bolt 63, the position of the collar 61 can be fixed. The collar 61 is hinged to one end of the support rod 62, and the other end of the support rod 62 is hinged to the bottom wall of the slider 4. By moving the collar 61 upward to press the bottom end of the support rod 62, the slider 4 can be moved away from the middle position of the worktable 1.

[0027] In this embodiment, the gear is fitted onto four sets of clamping plates 53 in the middle. Then, by pushing the collar 61 upwards, the bottom end of the support rod 62 is pressed. Through the hinge between the support rod 62 and the slider 4, the slider 4 moves away from the center of the worktable 1. The slider 4 then drives the adjusting block 51 to move, which in turn drives the clamping plate 53 at the end of the connecting rod 52 to clamp the inner wall of the gear. During clamping, the reaction force causes the adjusting block 51 to move to the right relative to the slider 4. When the adjusting block 51 moves to the right and completely compresses the bearing spring 54 into the interior of the slider 4, the adjusting block 51 drives the pressing rod 55 to press the upper end of the support rod 58, causing the support rod 58 to move... The end support block 59 rotates around the rotating rod 56, thereby making the support block 59 fit against the outer wall of the worktable 1, preventing the slider 4 from continuing to move to the left, and preventing the clamping plate 53 from continuing to clamp the inside of the gear and causing the outer wall to be scratched. Then, by tightening the fastening bolt 63, the position of the collar 61 is fixed, thereby making the four sets of clamping plates 53 stably clamp the gear. Finally, the gear is processed by the processing mechanism 2. After processing, the collar 61 is pushed down to reset. At this time, the spring force of the torsion spring 57 causes the rotating rod 56 to drive the support block 59 at the end of the support rod 58 to reset. At the same time, the spring force of the bearing spring 54 causes the adjusting block 51 to slide and reset, which facilitates the subsequent clamping and processing of the gear.

[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A positioning fixture for precision cast steel gear machining, comprising a workbench (1), a machining mechanism (2) is arranged on the workbench (1), characterized in that: The bottom wall of the workbench (1) is fixedly provided with a vertical rod (3), the workbench (1) is slidably connected with a sliding block (4), the sliding block (4) is provided with a clamping mechanism (5), the outer wall of the vertical rod (3) is provided with an adjusting mechanism (6), the clamping mechanism (5) comprises: The adjusting block (51) is slidably connected with the inner wall of the sliding block (4), one end of the adjusting block (51) is fixedly connected with the side wall of the bearing spring (54), the other end of the bearing spring (54) is fixedly connected with the inner wall of the sliding block (4); The connecting rod (52) is fixedly connected with the outer wall of the adjusting block (51), the other end of the connecting rod (52) is fixedly provided with a clamping plate (53), and the clamping plate (53) is provided in an arc shape.

2. The positioning fixture for precision cast steel gear machining according to claim 1, characterized in that: The outer wall of the rotating rod (56) is fixedly provided with a supporting rod (58), the supporting rod (58) is provided in a bent shape, and the end of the supporting rod (58) is fixedly provided with a supporting block (59).

3. The positioning fixture for precision cast steel gear machining according to claim 2, characterized in that: The outer wall of the adjusting block (51) is fixedly provided with an extrusion rod (55), the extrusion rod (55) is provided in a bent shape, and the extrusion rod (55) is arranged on the side of the supporting rod (58).

4. The positioning fixture for precision cast steel gear machining according to claim 3, characterized in that: The adjusting mechanism (6) comprises a sleeve ring (61), the sleeve ring (61) is slidably sleeved on the outer wall of the vertical rod (3), and the inside of the sleeve ring (61) is threadedly connected with a fastening bolt (63).

5. The positioning fixture for precision cast steel gear machining according to claim 4, characterized in that: The sleeve ring (61) is hinged with one end of a supporting rod (62), and the other end of the supporting rod (62) is hinged with the bottom wall of the sliding block (4).

6. The positioning fixture for precision cast steel gear machining according to claim 5, characterized in that: ​

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