Adjustable hole turning fixture for cast steel production
By designing an adjustable rotating fixture with clamping and rotating mechanisms, the problem of inconvenient clamping caused by dimensional differences in cast steel parts was solved, achieving stable fixation of cast steel parts and convenient angle adjustment, thereby improving processing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DANJIANGKOU DANJIANG AUTO TRANSMISSION SHAFT CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-02
AI Technical Summary
Existing drilling fixtures used in the production of cast steel parts cannot be flexibly adjusted according to the size of the cast steel parts, resulting in inconvenient clamping and affecting processing efficiency.
An adjustable rotating hole fixture, comprising a clamping mechanism, a rotating mechanism, and a supporting mechanism, was designed. Through a combination of a drive screw and a rotating gear, the length, height, and angle of the cast steel part can be flexibly adjusted and fixed.
It improves the processing stability and efficiency of cast steel parts, makes clamping more secure, and makes angle adjustment more convenient, thus enhancing the overall performance.
Smart Images

Figure CN224310084U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drilling fixture technology, and in particular to an adjustable drilling fixture for the production of cast steel parts. Background Technology
[0002] Cast steel parts typically have large dimensions, complex shapes, and high hardness, thus requiring high precision during machining. To ensure machining accuracy, reduce errors, and improve production efficiency, drilling fixtures play a crucial role in the machining of cast steel parts. Through effective clamping, positioning, and support, drilling fixtures can improve machining stability and accuracy, meeting the specific needs of cast steel part machining.
[0003] However, when using drilling fixtures for cast steel parts production, sometimes the dimensions of the cast steel parts to be clamped are different, making it inconvenient to adjust the fixture according to their actual size. This results in more time being spent adjusting the fixture, which in turn affects the overall processing efficiency. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides an adjustable rotating hole fixture for the production of cast steel parts.
[0005] This utility model is achieved by the following technical solution: an adjustable rotating hole fixture for the production of cast steel parts, comprising a clamping mechanism, a rotating mechanism and a supporting mechanism, wherein the clamping mechanism is located at the upper end of the rotating mechanism and the rotating mechanism is located inside the supporting mechanism;
[0006] The clamping mechanism includes a first rotary knob, a drive screw fixedly connected to the inner wall of the first rotary knob, a mounting sleeve rotatably connected to the surface of the drive screw, a limit plate rotatably connected to the surface of the mounting sleeve, a sliding frame slidably connected to the inner wall of the mounting sleeve, a mounting bracket fixedly connected to the side end of the sliding bracket, a bidirectional screw rotatably connected to the inner wall of the mounting bracket, a clamping block threadedly connected to the surface of the bidirectional screw, the surface of the clamping block slidably connected to the inner wall of the mounting bracket, and the surface of the drive screw threadedly connected to the inner wall of the sliding bracket.
[0007] The above technical solution uses a first rotary knob to drive the sliding frame to extend and retract left and right, and a bidirectional screw to drive the clamping block to move up and down. This design enables the device to be adjusted according to the length and height of the cast steel part, making the device more stable in fixing the cast steel part, thereby further improving the subsequent processing effect of the cast steel part and enhancing the overall practicality of the device.
[0008] As a further improvement to the above solution, the rotating mechanism includes a second rotating knob, with rotating shafts fixedly connected to both sides of the second rotating knob. A drive gear is fixedly connected to the surface of the rotating shaft, and a toothed belt meshes with the surface of the drive gear. A driven gear meshes with the inner wall of the toothed belt, and the drive gear drives the driven gear through the toothed belt. The inner wall of the driven gear is fixedly connected to the surface of the mounting sleeve.
[0009] The above technical solution, which uses the rotation of the rotating shaft to drive the driven gears on both sides to drive the cast steel parts to rotate, makes it easier to adjust the machining angle when needed, and makes the device more convenient to use.
[0010] As a further improvement to the above solution, the support mechanism includes a support base, a support frame is fixedly connected to the upper end of the support base, the inner wall of the support frame is rotatably connected to the surface of the rotating shaft, the side end of the support frame is fixedly connected to the surface of the limiting plate, the surface of the first rotating knob is rotatably connected to the inner wall of the support frame, and the surface of the mounting sleeve is rotatably connected to the inner wall of the support frame.
[0011] The above technical solutions provide a stable connection and support for the operation of the overall fixture, making the fixture more stable during clamping.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This utility model employs a clamping mechanism: A cast steel part is placed between two mounting brackets. Then, the first knobs on both sides are gradually rotated to drive the drive screw. Simultaneously, the sliding bracket on the surface of the drive screw moves on the surface of the drive screw under the limitation of the surface mounting sleeve, causing the mounting brackets to move closer to and clamp the cast steel part. After the two mounting brackets have clamped the cast steel part, the bidirectional screw is rotated to drive the two clamping blocks on its surface to move closer together, further securing the cast steel part in the middle. The design, using the first knobs to drive the sliding brackets to extend and retract left and right, and the bidirectional screws to drive the clamping blocks to move up and down, allows for adjustment of the device according to the length and height of the cast steel part, making the device more secure in fixing the cast steel part.
[0014] This utility model incorporates a rotating mechanism: rotating the second knob drives the rotating shaft to rotate, which in turn drives the two drive gears to rotate. Simultaneously, the transmission on the surface of the drive gears rotates synchronously, thereby driving the mounting sleeve fixed to it to adjust the angle of the clamped cast steel part. The design of using the rotation of the rotating shaft to drive the driven gears on both sides to drive the cast steel part to rotate makes it more convenient to adjust the processing angle when needed, making the device more convenient to use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the side cross-sectional structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram of the specific parts structure of the clamping mechanism of this utility model;
[0019] Figure 5 This is a schematic diagram of the connection structure between the clamping mechanism and the rotating mechanism of this utility model.
[0020] Explanation of key symbols:
[0021] 1. Clamping mechanism; 101. First rotary knob; 102. Drive screw; 103. Mounting sleeve; 104. Limiting plate; 105. Sliding frame; 106. Mounting frame; 107. Bidirectional screw; 108. Clamping block; 2. Rotation mechanism; 201. Second rotary knob; 202. Rotation shaft; 203. Drive gear; 204. Toothed belt; 205. Driven gear; 3. Support mechanism; 301. Support base; 302. Support frame. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example
[0023] Please combine Figure 1-5 An adjustable rotating hole fixture for producing cast steel parts according to this embodiment includes a clamping mechanism 1, a rotating mechanism 2 and a supporting mechanism 3. The clamping mechanism 1 is located at the upper end of the rotating mechanism 2, and the rotating mechanism 2 is located inside the supporting mechanism 3.
[0024] The clamping mechanism 1 includes a first rotary knob 101, a drive screw 102 fixedly connected to the inner wall of the first rotary knob 101, a mounting sleeve 103 rotatably connected to the surface of the drive screw 102, a limit plate 104 rotatably connected to the surface of the mounting sleeve 103, a sliding frame 105 slidably connected to the inner wall of the mounting sleeve 103, a mounting frame 106 fixedly connected to the side end of the sliding frame 105, a bidirectional screw 107 rotatably connected to the inner wall of the mounting frame 106, and a clamping block 108 threadedly connected to the surface of the bidirectional screw 107. The design of using the first rotary knob 101 to drive the sliding frame 105 to extend and retract left and right and using the bidirectional screw 107 to drive the clamping block 108 to move up and down achieves the purpose of adjusting the device according to the length and height of the cast steel part, making the device more stable in fixing the cast steel part.
[0025] The surface of the clamping block 108 is slidably connected to the inner wall of the mounting bracket 106, and the surface of the drive screw 102 is threadedly connected to the inner wall of the sliding bracket 105.
[0026] The rotating mechanism 2 includes a second rotating knob 201, with rotating shafts 202 fixedly connected to both sides of the second rotating knob 201. A drive gear 203 is fixedly connected to the surface of the rotating shaft 202, and a toothed belt 204 meshes with the surface of the drive gear 203. A driven gear 205 meshes with the inner wall of the toothed belt 204. The design of using the rotation of the rotating shaft 202 to drive the driven gears 205 on both sides to drive the cast steel part to rotate achieves the purpose of making it more convenient to adjust its machining angle when needed, making the device more convenient to use.
[0027] The drive gear 203 drives the driven gear 205 through the toothed belt 204, and the inner wall of the driven gear 205 is fixedly connected to the surface of the mounting sleeve 103.
[0028] The support mechanism 3 includes a support base 301, and a support frame 302 is fixedly connected to the upper end of the support base 301.
[0029] The inner wall of the support frame 302 is rotatably connected to the surface of the rotating shaft 202, and the side end of the support frame 302 is fixedly connected to the surface of the limiting plate 104.
[0030] The surface of the first rotating knob 101 is rotatably connected to the inner wall of the support frame 302, and the surface of the mounting sleeve 103 is rotatably connected to the inner wall of the support frame 302.
[0031] The implementation principle of an adjustable drilling fixture for producing cast steel parts in this embodiment is as follows: When using the fixture, the cast steel part is first placed between the two mounting brackets 106. Then, the first rotating knobs 101 on both sides are gradually rotated to drive the drive screw 102 to rotate. At the same time, the sliding bracket 105 on the surface of the drive screw 102 moves on the surface of the drive screw 102 under the limitation of the surface mounting sleeve 103, thereby driving the mounting bracket 106 to move closer to the cast steel part and clamp it. After the two mounting brackets 106 have clamped the cast steel part, the bidirectional screw 107 is rotated to drive the two clamping blocks 108 on its surface to move closer to each other, thereby further fixing and clamping the cast steel part in the middle. The first rotating knob 101 is used to drive the sliding bracket 105 to extend and retract left and right, and the bidirectional screw 107 is used to drive the clamping blocks 108 to move up and down. The design allows for adjustment of the device based on the length and height of the cast steel part, resulting in a more stable fixation of the cast steel part and further improving the subsequent processing effect. This enhances the overall practicality of the device. When the cast steel part needs to be processed at different angles after clamping, rotating the second knob 201 drives the rotating shaft 202 to rotate, which in turn drives the two drive gears 203 to rotate. Simultaneously, the transmission 295 on its surface rotates synchronously, thereby driving the mounting sleeve 103 fixed to it to adjust the angle of the clamped cast steel part. The design of using the rotation of the rotating shaft 202 to drive the driven gears 205 on both sides to drive the cast steel part to rotate makes it more convenient to adjust the processing angle when needed, making the device more convenient to use.
[0032] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. An adjustable rotating hole fixture for producing cast steel parts, characterized in that, It includes a clamping mechanism (1), a rotating mechanism (2) and a supporting mechanism (3), wherein the clamping mechanism (1) is located at the upper end of the rotating mechanism (2) and the rotating mechanism (2) is located inside the supporting mechanism (3); The clamping mechanism (1) includes a first rotary knob (101), a drive screw (102) is fixedly connected to the inner wall of the first rotary knob (101), an mounting sleeve (103) is rotatably connected to the surface of the drive screw (102), a limit plate (104) is rotatably connected to the surface of the mounting sleeve (103), a sliding frame (105) is slidably connected to the inner wall of the mounting sleeve (103), an mounting frame (106) is fixedly connected to the side end of the sliding frame (105), a bidirectional screw (107) is rotatably connected to the inner wall of the mounting frame (106), and a clamping block (108) is threadedly connected to the surface of the bidirectional screw (107).
2. The adjustable drilling fixture for producing cast steel parts as described in claim 1, characterized in that: The surface of the clamping block (108) is slidably connected to the inner wall of the mounting bracket (106), and the surface of the drive screw (102) is threadedly connected to the inner wall of the sliding bracket (105).
3. The adjustable drilling fixture for producing cast steel parts as described in claim 2, characterized in that: The rotating mechanism (2) includes a second rotating knob (201), with rotating shafts (202) fixedly connected to both sides of the second rotating knob (201). A drive gear (203) is fixedly connected to the surface of the rotating shaft (202), and a toothed belt (204) meshes with the surface of the drive gear (203). A driven gear (205) meshes with the inner wall of the toothed belt (204).
4. The adjustable drilling fixture for producing cast steel parts as described in claim 3, characterized in that: The drive gear (203) drives the driven gear (205) through the toothed belt (204), and the inner wall of the driven gear (205) is fixedly connected to the surface of the mounting sleeve (103).
5. The adjustable drilling fixture for producing cast steel parts as described in claim 4, characterized in that: The support mechanism (3) includes a support base (301), and a support frame (302) is fixedly connected to the upper end of the support base (301).
6. The adjustable drilling fixture for producing cast steel parts as described in claim 5, characterized in that: The inner wall of the support frame (302) is rotatably connected to the surface of the rotating shaft (202), and the side end of the support frame (302) is fixedly connected to the surface of the limiting plate (104).
7. The adjustable drilling fixture for producing cast steel parts as described in claim 6, characterized in that: The surface of the first knob (101) is rotatably connected to the inner wall of the support frame (302), and the surface of the mounting sleeve (103) is rotatably connected to the inner wall of the support frame (302).