A batch clamping cylindrical part tooling fixture

By designing a tooling fixture for batch clamping cylindrical parts, and utilizing multiple positioning slots and rotating components, the limitations of single chuck clamping and the single machining direction of milling machines in existing technologies are solved. This enables the simultaneous clamping and multi-angle machining of multiple cylindrical parts, thereby improving machining efficiency.

CN224359782UActive Publication Date: 2026-06-16SUZHOU GRECO PRECISION MACHINERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU GRECO PRECISION MACHINERY CO LTD
Filing Date
2025-07-24
Publication Date
2026-06-16

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Abstract

The utility model relates to the field of frock clamp discloses a kind of batch clamping cylindrical part frock clamp, including clamping assembly and rotating assembly;The clamping assembly includes positioning groove and clamping plate;The rotating assembly includes bottom plate, bottom plate is set in mounting plate bottom, and the both sides of bottom plate are provided with connecting seat, and the side, away from bottom plate of connecting seat, is provided with the clamping shaft matched with tiltable rotary table.This utility model, by setting clamping assembly, the cooperation of positioning groove and clamping plate can batch clamping cylindrical part, by setting rotating assembly, and using tiltable rotary table clamping clamping shaft can realize once clamping, and multi-angle is processed to cylindrical part.
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Description

Technical Field

[0001] This utility model relates to the field of tooling fixtures, specifically to a tooling fixture for batch clamping cylindrical parts. Background Technology

[0002] Fixtures are used to hold workpieces. After the workpieces are held by the fixtures, they are then assembled, inspected, or repaired. Only when the workpieces are securely held can the quality of assembly, inspection, or repair operations be effectively guaranteed.

[0003] The tilting rotary table is a major accessory for milling machines, boring machines, and drilling machines. It can be tilted and locked from 0 to 90 degrees, and is suitable for machining inclined holes or positioning workpieces in multiple directions. When used with a tailstock, it can realize circumferential indexing milling and drilling.

[0004] Chinese Patent CN221312552U discloses a chuck device for clamping cylindrical workpieces on a machine tool, comprising a chuck body, a self-aligning disc assembly, a jaw assembly, and a pressure plate. The rear end of the chuck body is connected to an external transmission device. An installation guide groove for mounting the jaw assembly is provided at the front end of the chuck body. A cavity for mounting the self-aligning disc assembly is provided in the middle of the chuck body. The jaw assembly is engaged and slidably contacts the installation guide groove. This invention has a simple overall structure and is easy to operate. In practical use, it can clamp cylindrical workpieces with uneven end faces, and the indentation on the clamped workpiece end face is shallow. It can be quickly changed during use to adapt to bars of different diameters, greatly meeting the needs of processing applications.

[0005] like Figure 5 There is a part that needs to be machined. The part is cylindrical in shape and includes a hole parallel to the axis and an arc-shaped surface at a certain angle to the axis. The hole and surface need to be machined using a CNC milling machine.

[0006] There are currently two main approaches:

[0007] 1. Use a chuck to clamp and then process; however, a chuck can only clamp one cylindrical part, and cannot clamp multiple cylindrical parts.

[0008] 2. Milling is used for machining. Traditional milling machines have a single machining direction and require secondary clamping.

[0009] There is an urgent need to provide a solution for conveniently processing the aforementioned parts. Utility Model Content

[0010] Based on the above description, this utility model provides a tooling fixture for batch clamping cylindrical parts, so as to solve the problem that a chuck can only clamp one cylindrical part and cannot clamp multiple cylindrical parts.

[0011] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a tooling fixture for batch clamping cylindrical parts, including a clamping assembly and a rotating assembly;

[0012] The clamping assembly includes a positioning groove, a clamping plate, and a mounting plate. The positioning groove is disposed on the mounting plate, and the mounting plate has a mounting groove on the side of the mounting plate near the positioning groove. The clamping plate is disposed on the mounting groove.

[0013] The rotating assembly includes a base plate, which is disposed at the bottom of the mounting plate. A bottom groove is provided on the side of the base plate facing the mounting plate, and a countersunk hole is provided on the side of the mounting plate facing the base plate. A through hole that mates with the countersunk hole is provided through the bottom groove. Connecting seats are provided on both sides of the base plate, and a clamping shaft is provided on the side of the connecting seat away from the base plate.

[0014] Through the above technical solution, the positioning groove can position the cylindrical part to be processed, and the clamping plate set on the mounting groove can fix the cylindrical part inside the positioning groove, realizing the clamping function of the clamping assembly; the bottom groove set on the base plate can accommodate the mounting plate, and the fit between the through hole and the countersunk hole can use bolts to fix the mounting plate on the base plate; the clamping shaft and the tilting rotary table can adjust the processing angle of the fixture, realizing the rotation function of the rotating assembly.

[0015] Based on the above technical solution, the present invention can be further improved as follows.

[0016] Furthermore, the mounting groove is provided with threaded holes, and the clamping plate is provided with through holes that mate with the threaded holes.

[0017] Through the above technical solution, the clamping plate is connected to the mounting slot by screws and the clamping plate is fixed on the mounting slot.

[0018] Furthermore, the number of positioning slots is n, and the number of threaded holes is n+1, where n≥7.

[0019] With the above technical solution, the number of positioning grooves is no less than seven, and the number of threaded holes and openings is no less than eight. This allows multiple cylindrical parts to be positioned and fixed using clamping plates, which is beneficial for the simultaneous processing of multiple cylindrical parts. The multiple threaded holes can enhance the fixing effect during the processing of cylindrical parts.

[0020] Furthermore, a connecting groove is provided on the side of the clamping plate near the positioning groove, and the connecting groove and the positioning groove cooperate to form the cylindrical shape of the cylindrical part.

[0021] Through the above technical solution, the connecting groove and the positioning groove cooperate to form a cylinder. After the clamping plate is fixed in the mounting groove, the cooperation between the connecting groove and the positioning groove can fix the cylindrical part on the mounting base.

[0022] Furthermore, a connector for connecting to the mounting plate is provided inside the through hole, and a small hole for bolts to be inserted is provided through the connector.

[0023] Through the above technical solution, the connector and bolt are assembled by the cooperation of the connector, through hole and countersunk hole, the bolt passes through the through hole and the other side of the bolt is fixed in the countersunk hole, so that the mounting plate is fixed on the base plate.

[0024] Furthermore, the size of the hole is larger than the size of the threaded hole.

[0025] The above technical solution allows the hole size to be larger than the threaded hole size, which is beneficial for screwing the screw into the threaded hole.

[0026] Furthermore, the height of the clamping plate is lower than the lowest point of surface one.

[0027] With the above technical solution, after processing, the processed part of the cylindrical part is difficult to hold by hand. The height of the clamping plate reaches the lowest point of the cylindrical part surface, exposing the unprocessed part of the cylindrical part. By holding the unprocessed part of the cylindrical part, the cylindrical part can be taken out from the positioning groove.

[0028] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0029] 1. By setting up a clamping assembly, multiple positioning slots are set on the mounting plate, and clamping plates are set on the mounting slots, multiple cylindrical parts can be clamped on this fixture, realizing the simultaneous processing of multiple cylindrical parts;

[0030] 2. By setting a rotating component, a clamping shaft matching the tilting rotary table is set on the base plate. After the tilting rotary table clamps the clamping shaft, the tilting rotary table can be used to perform machining operations on multiple cylindrical parts at multiple angles. Attached Figure Description

[0031] Figure 1 A schematic diagram of the overall structure of a tooling fixture for batch clamping cylindrical parts provided in this embodiment of the present utility model;

[0032] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0033] Figure 3 This is a cross-sectional view showing the horizontal angle machining of an embodiment of this utility model;

[0034] Figure 4This is a cross-sectional view showing the tilt angle machining of an embodiment of the present utility model;

[0035] Figure 5 This is a cross-sectional view of the part to be processed in this embodiment of the utility model;

[0036] Reference numerals: 1. Clamping assembly; 11. Positioning slot; 12. Mounting plate; 13. Clamping plate; 14. Mounting slot; 15. Connecting slot;

[0037] 2. Rotating assembly; 21. Base plate; 22. Bottom groove; 23. Countersunk hole; 24. Through hole; 25. Connecting seat; 26. Clamping shaft;

[0038] 3. Threaded hole; 4. Connector; 5. Bolt

[0039] 6. Part; 61. Surface 1; 62. Hole 1. Detailed Implementation

[0040] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Example:

[0042] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 A tooling fixture for batch clamping cylindrical parts, comprising a clamping assembly 1 and a rotating assembly 2;

[0043] The clamping assembly 1 includes a positioning groove 11 and a clamping plate 13. The positioning groove 11 is provided on the mounting plate 12. The mounting plate 12 is provided with a mounting groove 14 on the side near the positioning groove 11. The clamping plate 13 is provided on the mounting groove 14. The cylindrical part can be positioned on the mounting plate 12 through the positioning groove 11. The cylindrical part can be fixed on the mounting plate 12 by using screws to fix the clamping plate 13 on the mounting groove 14, thus realizing the clamping function.

[0044] The rotating assembly 2 includes a base plate 21, which is located at the bottom of the mounting plate 12. The base plate 21 has a groove 22 on the side facing the mounting plate 12 to accommodate the mounting plate 12. The mounting plate 12 has a countersunk hole 23 on the side facing the base plate 21. A through hole 24 is provided through the groove 22 to engage with the countersunk hole 23. The engagement of the through hole 24 and the countersunk hole 23 allows the mounting plate 12 to be fixed to the base plate 21 using bolts 5. Connecting seats 25 are provided on both sides of the base plate 21. A clamping shaft 26 is provided on the side of the connecting seat 25 away from the base plate 21 to engage with a tilting rotary table. The clamping shaft 26 engages with the tilting rotary table to adjust the processing angle of the fixture, thereby realizing the rotation function of the rotating assembly 2.

[0045] refer to Figure 2 The mounting slot 14 is provided with a threaded hole 3, and the clamping plate 13 is provided with a hole corresponding to the threaded hole 3. The clamping plate 13 can be fixed to the mounting plate 12 by using a screw that matches the threaded hole 3 through the hole of the clamping plate 13.

[0046] refer to Figure 2 The number of positioning grooves 11 is n, and the number of threaded holes 3 is n+1, where n≥7. Multiple cylindrical parts are placed in the positioning grooves 11 and fixed with multiple screws to realize the function of batch clamping of cylindrical parts and also enhance the fixing effect of multiple cylindrical parts.

[0047] refer to Figure 2 The hole size is larger than the threaded hole 3 and matches the structure of the screw, which is beneficial for using screws to fix the clamping plate 13 onto the mounting slot 14.

[0048] refer to Figure 2 A connector 4 is provided in the through hole 24 to connect with the mounting plate 12. A small hole is provided through the connector 4 for the bolt 5 to be inserted. By combining the connector 4 and the bolt 5, the mounting plate 12 can be fixed to the base plate 21 by the bolt 5 through the cooperation of the through hole 24 and the countersunk hole 23.

[0049] refer to Figure 1 The mounting plate 12 has connectors 4 on both sides of its bottom that match the tilting rotary table. By connecting the connectors 4 to the tilting rotary table, the machining angle of this fixture can be adjusted using the tilting rotary table to achieve multi-angle machining.

[0050] refer to Figure 2The positioning groove 11 matches one end of the cylindrical part. The clamping plate 13 is provided with a connecting groove 15 on the side near the positioning groove 11. The connecting groove 15 and the positioning groove 11 cooperate to form a cylinder. The design of the positioning groove 11 matching one end of the cylindrical part is conducive to positioning the cylindrical part. The cylinder formed by the connecting groove 15 and the positioning groove 11 can fit against one end of the cylindrical part. After being fixed by the clamping plate 13, the cylindrical part can be clamped onto this fixture.

[0051] refer to Figure 1 and Figure 4 After processing, simply loosen the screws in each screw hole on the clamping plate 13. At this time, a gap will appear between the positioning groove 11 and the connecting groove 15, and the cylindrical part will no longer be fixed. The lowest point of the first surface of the cylindrical part is higher than the height of the clamping plate 13. The height of the clamping plate 13 is up to the first surface of the cylindrical part, exposing the unprocessed surface of the cylindrical part. By holding the unprocessed surface of the cylindrical part, the cylindrical part can be taken out from the positioning groove 11.

[0052] In a brief description of the specific operation, multiple cylindrical parts to be processed are placed into the positioning groove 11, and the cylindrical parts to be processed are fixed with screws to achieve batch clamping of cylindrical parts. Then, the mounting plate 12 is placed in the bottom groove 22 on the base plate 21, and the mounting plate 12 is fixed on the base plate 21 by the connector 4. The clamping shafts 26 on both sides of the connecting seat 25 are clamped by the tilting rotary worktable.

[0053] The tilting rotary table can be used to adjust the fixture to a horizontal angle, at which point a milling cutter can be used to drill holes in multiple cylindrical parts; after adjusting the tilting rotary table to a tilt angle, multiple cylindrical parts can be machined at a tilt angle, completing the function of one clamping and multi-angle machining.

[0054] After the cylindrical part is machined, loosen the screws in each screw hole on the clamping plate 13. At this time, a gap will appear between the positioning groove 11 and the connecting groove 15, and the cylindrical part will no longer be fixed. The cylindrical part will be exposed due to the height difference between the mounting plate 12 and the clamping plate 13, and the machined cylindrical part can be quickly removed from the mounting plate 12.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 tooling fixture for batch clamping cylindrical parts, Its features are, It includes a clamping assembly (1) and a rotating assembly (2); The clamping assembly (1) includes a positioning groove (11), a clamping plate (13) and a mounting plate (12). The positioning groove (11) is disposed on the mounting plate (12). The mounting plate (12) has a mounting groove (14) on the side near the positioning groove (11). The clamping plate (13) is disposed on the mounting groove (14). The rotating assembly (2) includes a base plate (21), which is disposed at the bottom of the mounting plate (12). A bottom groove (22) is provided on the side of the base plate (21) facing the mounting plate (12). A countersunk hole (23) is provided on the side of the mounting plate (12) facing the base plate (21). A through hole (24) that mates with the countersunk hole (23) is provided through the bottom groove (22). Connecting seats (25) are provided on both sides of the base plate (21). A clamping shaft (26) is provided on the side of the connecting seat (25) away from the base plate (21).

2. The tooling fixture for batch clamping cylindrical parts according to claim 1, characterized in that, The mounting groove (14) is provided with a threaded hole (3), and the clamping plate (13) is provided with a hole that mates with the threaded hole (3).

3. A tooling fixture for batch clamping cylindrical parts according to claim 1, characterized in that, The number of positioning grooves (11) is n, and the number of threaded holes (3) is n+1, where n≥7.

4. A tooling fixture for batch clamping cylindrical parts according to claim 1, characterized in that, The clamping plate (13) has a connecting groove (15) on the side near the positioning groove (11), and the connecting groove (15) and the positioning groove (11) cooperate to form a cylinder.

5. A tooling fixture for batch clamping cylindrical parts according to claim 1, characterized in that, A connector (4) is provided inside the through hole (24), and a small hole for a bolt (5) to be inserted is provided through the connector (4).

6. A tooling fixture for batch clamping cylindrical parts according to claim 2, characterized in that, The size of the hole is larger than the size of the threaded hole (3).

7. A tooling fixture for batch clamping cylindrical parts according to claim 1, characterized in that, The height of the clamping plate (13) is lower than the lowest point of surface one.