Positioning tool for turning special-shaped parts

Abstract

The utility model discloses a kind of positioning tool for special-shaped part turning, including connecting seat and bearing mechanism, the bottom of the connecting seat is fixedly connected with support leg, multiple groups of installation grooves are opened in the support leg, the bearing mechanism is set as two groups, the top of the connecting seat is slidably connected with the position adjusting mechanism of driving two groups of bearing mechanism movement, two groups of the bearing mechanism close are used to clamp special-shaped part, the bottom of the bearing mechanism is provided with the auxiliary support mechanism of the end positioning support thereof. The position adjusting mechanism set in the utility model can drive two groups of bearing mechanism to move mutually, so that two groups of bearing mechanism can be used to clamp and position special-shaped part, and the bearing mechanism set can be quickly replaced, so as to clamp and position different specifications special-shaped part, the auxiliary support mechanism set subsequently can support one end of bearing mechanism, prevent the special-shaped part clamped from being inclined due to its own weight, ensure processing accuracy to a certain extent.

Description

Technical Field

[0001] This utility model relates to the technical field of machining positioning devices, specifically a positioning fixture for turning irregularly shaped parts. Background Technology

[0002] A positioning fixture for turning irregularly shaped parts is an auxiliary device specifically designed for reliably clamping and precisely positioning non-standard geometric (irregular) parts on a lathe. Because irregularly shaped parts typically lack regular rotational symmetry or standard clamping surfaces, conventional clamping devices struggle to achieve stable, repeatable, and high-precision clamping; therefore, a dedicated positioning fixture is required.

[0003] When using existing clamping fixtures to process long parts, the weight of one end may cause it to tilt, making it impossible to clamp and fix the end, thus affecting the machining accuracy. To address this, we propose a positioning fixture for turning irregularly shaped parts. Utility Model Content

[0004] The purpose of this invention is to provide a positioning fixture for turning irregularly shaped parts, 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 turning irregularly shaped parts, comprising a connecting seat and a bearing mechanism. The bottom of the connecting seat is fixedly connected to a support leg, and the support leg has multiple sets of mounting grooves. The bearing mechanism is configured as two sets. The top of the connecting seat is slidably connected to a position adjustment mechanism that drives the two sets of bearing mechanisms to move. The two sets of bearing mechanisms that are close together are used to clamp the irregularly shaped parts. The bottom of the bearing mechanism is provided with an auxiliary support mechanism for positioning and supporting its ends.

[0006] Furthermore, the position adjustment mechanism includes a slide rail, a slider, a bearing seat, a dual-axis screw, and a threaded sleeve. The top of the connecting seat is fixedly connected to the slide rail, and two sets of sliders are slidably connected to the slide rail. The top two ends of the connecting seat are rotatably connected to the dual-axis screw via the bearing seat. The external threads of the dual-axis screw are connected to two sets of threaded sleeves, and the threaded sleeves are fixedly connected to the sliders. A throttle is fixedly connected to one side of the dual-axis screw.

[0007] Furthermore, the bearing mechanism includes a bearing frame, a clamping seat, a positioning block, and a reinforcing plate. The top of the threaded sleeve is fixedly connected to the bearing frame, and the bottom of the clamping seat is fixedly connected to the positioning block inserted into the bearing frame. The two ends of the positioning block are fixedly connected to the reinforcing plate that fits against the outer wall of the bearing frame. The bearing frame, the positioning block, and the reinforcing plate are all provided with locking grooves, and locking bolts are provided inside the locking grooves. A rear baffle is fixedly connected to one side of the clamping seat through two sets of connecting blocks.

[0008] Furthermore, the auxiliary support mechanism includes a support base, a support column, and support balls. The support base is fixedly connected to one side of the connecting seat, the support column is fixedly connected to the bottom of the rear baffle, and the support balls that rotatably connect to the bottom of the support column are in contact with the top of the support base.

[0009] Furthermore, the bottom two sides of the positioning block are provided with arc-shaped chamfers.

[0010] Furthermore, rubber pads are provided on the inner wall of the clamping seat and on one side of the rear baffle.

[0011] Compared with the prior art, the present invention has the following advantages: The support legs and mounting grooves of the present invention cooperate with the external bolts to fix the connecting seat. The subsequent position adjustment mechanism can drive the two sets of bearing mechanisms to move relative to each other. In this way, the two sets of bearing mechanisms can be used to clamp and position the irregular parts. The bearing mechanisms can be quickly replaced to clamp and position irregular parts of different specifications. The subsequent auxiliary support mechanism can support one end of the bearing mechanism to prevent the clamped irregular parts from tilting due to their own weight, thus ensuring the processing accuracy to a certain extent. Attached Figure Description

[0012] Figure 1 This is a first perspective structural diagram of the present invention; Figure 2 This is a second perspective view of the structure of this utility model; Figure 3 This is a three-dimensional structural diagram of the load-bearing mechanism of this utility model.

[0013] In the diagram: 1. Connecting seat; 2. Support leg; 3. Mounting slot; 4. Position adjustment mechanism; 5. Bearing mechanism; 6. Auxiliary support mechanism; 7. Slide rail; 8. Slider; 9. Bearing seat; 10. Dual-axis screw; 11. Threaded sleeve; 12. Turning handle; 13. Bearing frame; 14. Clamping seat; 15. Positioning block; 16. Reinforcing plate; 17. Locking slot; 18. Locking bolt; 19. Connecting block; 20. Rear baffle; 21. Support seat; 22. Support column; 23. Support ball. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-3 This utility model provides a technical solution: a positioning fixture for turning irregular parts, including a connecting seat 1 and a bearing mechanism 5. The bottom of the connecting seat 1 is fixedly connected to a support leg 2, and multiple sets of mounting grooves 3 are opened on the support leg 2. The bearing mechanism 5 is set to two sets. The top of the connecting seat 1 is slidably connected to a position adjustment mechanism 4 that drives the two sets of bearing mechanisms 5 to move. The two sets of close-to-each-mount bearing mechanisms 5 are used to clamp the irregular parts. The bottom of the bearing mechanism 5 is provided with an auxiliary support mechanism 6 for positioning and supporting its ends.

[0016] The supporting leg 2 and the mounting groove 3 are designed to cooperate with external bolts to fix the connecting seat 1 in place. The position adjustment mechanism 4 can drive the two sets of bearing mechanisms 5 to move relative to each other. This allows the two sets of bearing mechanisms 5 to clamp and position the irregular parts. The bearing mechanisms 5 can be quickly replaced to clamp and position irregular parts of different specifications. The auxiliary support mechanism 6 can support one end of the bearing mechanism 5 to prevent the clamped irregular parts from tilting due to their own weight, thus ensuring the processing accuracy to a certain extent.

[0017] Please see Figure 1 and Figure 2 The position adjustment mechanism 4 includes a slide rail 7, a slider 8, a bearing seat 9, a double-axis screw 10, and a threaded sleeve 11. The top of the connecting seat 1 is fixedly connected to the slide rail 7, and two sets of sliders 8 are slidably connected on the slide rail 7. The top two ends of the connecting seat 1 are rotatably connected to the double-axis screw 10 through the bearing seat 9. Two sets of threaded sleeves 11 are threadedly connected to the outside of the double-axis screw 10. The threaded sleeves 11 are fixedly connected to the sliders 8, and a throttle 12 is fixedly connected to one side of the double-axis screw 10.

[0018] When it is necessary to use two sets of bearing mechanisms 5 to process irregular parts, the throttle 12 drives the double-axis screw 10 to rotate. The rotating double-axis screw 10 can drive the threaded sleeve 11 connected to it to move through the slider 8 and the slide rail 7, so that the two sets of bearing mechanisms 5 can clamp and position the irregular parts.

[0019] Please see Figure 1 , Figure 2 and Figure 3 The bearing mechanism 5 includes a bearing frame 13, a clamping seat 14, a positioning block 15, and a reinforcing plate 16. The top of the threaded sleeve 11 is fixedly connected to the bearing frame 13. The bottom of the clamping seat 14 is fixedly connected to the positioning block 15, which is inserted into the bearing frame 13. The two ends of the positioning block 15 are fixedly connected to the reinforcing plate 16, which fits against the outer wall of the bearing frame 13. The bearing frame 13, the positioning block 15, and the reinforcing plate 16 are all provided with locking grooves 17. Locking bolts 18 are provided inside the locking grooves 17. A rear baffle 20 is fixedly connected to one side of the clamping seat 14 through two sets of connecting blocks 19.

[0020] The clamping seat 14 and the rear baffle 20 can provide positioning support for both ends of the irregular part. When it is necessary to replace the clamping seat 14 to clamp and position irregular parts of different specifications, the locking bolt 18 is removed, and then the positioning block 15 at the bottom of another set of clamping seats 14 is inserted into the inside of the bearing frame 13. Then the reinforcing plate 16 contacts the outer wall of the bearing frame 13, thus completing the insertion and positioning of the clamping seat 14. Then the locking bolt 18 is inserted into the locking groove 17, thus completing the position locking of the bearing frame 13 and the clamping seat 14.

[0021] Please see Figures 1-3 The auxiliary support mechanism 6 includes a support base 21, a support column 22, and a support ball 23. The support base 21 is fixedly connected to one side of the connecting seat 1, and the support column 22 is fixedly connected to the bottom of the rear baffle 20. The support ball 23, which contacts the top of the support base 21, is rotatably connected to the bottom of the support column 22.

[0022] When the position adjustment mechanism 4 drives the bearing mechanism 5 to adjust its position, the support column 22 and the support ball 23 can move along the position of the support seat 21. After the position of the bearing mechanism 5 is moved, the support ball 23 is always in contact with the top of the support seat 21. In this way, the support ball 23 and the support column 22 can always support and limit the rear baffle 20 at the end.

[0023] Please see Figures 1-3 The bottom sides of the positioning block 15 are provided with arc-shaped chamfers, which facilitate the insertion of the positioning block 15 into the bearing frame 13.

[0024] Please see Figures 1-3 Rubber pads are provided on the inner wall of the clamping seat 14 and one side of the rear baffle 20. The rubber pads can prevent damage to the irregular parts when the clamping seat 14 and the rear baffle 20 come into contact and clamp them.

[0025] In use, firstly, the support leg 2 and mounting groove 3 cooperate with external bolts to fix the connecting seat 1 in place. Then, the position adjustment mechanism 4 drives the two sets of bearing mechanisms 5 to move relative to each other, allowing the two sets of bearing mechanisms 5 to clamp and position irregularly shaped parts. The bearing mechanisms 5 can be quickly replaced to clamp and position irregularly shaped parts of different specifications. The auxiliary support mechanism 6 supports one end of the bearing mechanism 5 to prevent the clamped irregularly shaped parts from tilting due to their own weight, thus ensuring processing accuracy to a certain extent. When processing irregularly shaped parts using the two sets of bearing mechanisms 5, the throttle 12 drives the dual-axis screw 10 to rotate. This rotating dual-axis screw 10 then drives the threaded sleeve 11, which is threaded to it, to move through the slider 8 and slide rail 7, thus allowing the two sets of bearing mechanisms 5 to clamp and position the irregularly shaped parts. The clamping seat... 14 and the rear baffle 20 can provide positioning support for both ends of the irregular part. When it is necessary to change the clamping seat 14 to clamp and position irregular parts of different specifications, the locking bolt 18 is removed, and then the positioning block 15 at the bottom of another set of clamping seats 14 is inserted into the inside of the bearing frame 13. Then the reinforcing plate 16 contacts the outer wall of the bearing frame 13, thus completing the insertion and positioning of the clamping seat 14. Then the locking bolt 18 is inserted into the locking groove 17, thus completing the position locking of the bearing frame 13 and the clamping seat 14. When the position adjustment mechanism 4 drives the bearing mechanism 5 to adjust the position, the support column 22 and the support ball 23 can move along the position of the support seat 21. After the position of the bearing mechanism 5 is moved, the support ball 23 is always in contact with the top of the support seat 21. Thus, the support ball 23 and the support column 22 can always support and limit the rear baffle 20 at the end.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for turning irregularly shaped parts, comprising a connecting seat (1) and a bearing mechanism (5), wherein a support leg (2) is fixedly connected to the bottom of the connecting seat (1), and the support leg (2) has multiple sets of mounting slots (3), characterized in that: The bearing mechanism (5) is configured in two groups. The top of the connecting seat (1) is slidably connected to a position adjustment mechanism (4) that drives the two groups of bearing mechanisms (5) to move. The two groups of bearing mechanisms (5) that are close to each other are used to clamp the irregular parts. The bottom of the bearing mechanism (5) is provided with an auxiliary support mechanism (6) for positioning and supporting its end.

2. The positioning fixture for turning irregularly shaped parts according to claim 1, characterized in that: The position adjustment mechanism (4) includes a slide rail (7), a slider (8), a bearing seat (9), a double-axis screw (10), and a threaded sleeve (11). The top of the connecting seat (1) is fixedly connected to the slide rail (7), and two sets of sliders (8) are slidably connected on the slide rail (7). The top two ends of the connecting seat (1) are rotatably connected to the double-axis screw (10) through the bearing seat (9). The external threads of the double-axis screw (10) are connected to two sets of threaded sleeves (11), and the threaded sleeves (11) are fixedly connected to the sliders (8). A throttle (12) is fixedly connected to one side of the double-axis screw (10).

3. The positioning fixture for turning irregularly shaped parts according to claim 2, characterized in that: The bearing mechanism (5) includes a bearing frame (13), a clamping seat (14), a positioning block (15), and a reinforcing plate (16). The top of the threaded sleeve (11) is fixedly connected to the bearing frame (13). The bottom of the clamping seat (14) is fixedly connected to the positioning block (15) inserted into the bearing frame (13). The two ends of the positioning block (15) are fixedly connected to the reinforcing plate (16) that fits against the outer wall of the bearing frame (13). The bearing frame (13), the positioning block (15), and the reinforcing plate (16) are all provided with locking grooves (17). The locking grooves (17) are provided with locking bolts (18). The side of the clamping seat (14) is fixedly connected to a rear baffle (20) through two sets of connecting blocks (19).

4. A positioning fixture for turning irregularly shaped parts according to claim 3, characterized in that: The auxiliary support mechanism (6) includes a support base (21), a support column (22) and a support ball (23). The support base (21) is fixedly connected to one side of the connecting seat (1), and the support column (22) is fixedly connected to the bottom of the rear baffle (20). The support ball (23) that contacts the top of the support base (21) is rotatably connected to the bottom of the support column (22).

5. A positioning fixture for turning irregularly shaped parts according to claim 4, characterized in that: The bottom sides of the positioning block (15) are provided with arc-shaped chamfers.

6. A positioning fixture for turning irregularly shaped parts according to claim 4, characterized in that: Rubber pads are provided on the inner wall of the clamping seat (14) and on one side of the rear baffle (20).

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