Machine tool positioning clamp

By designing a machine tool positioning fixture, and utilizing a combination of connecting discs, pressure plates, positioning components, and adjustment components, the problem of fixing and positioning irregularly shaped parts was solved, thereby improving machining accuracy and convenience.

CN223748583UActive Publication Date: 2026-01-02SICHUAN XUBO PRECISION TECH CO LTD
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Patent Information

Application Number
CN202520009199.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2026-01-02
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

In existing technologies, three-jaw chucks are difficult to effectively fix and position irregularly shaped parts, resulting in insufficient machining accuracy.

Method used

A machine tool positioning fixture was designed, including a connecting plate, a pressure plate, a positioning component, an adjustment component, and a connecting seat. Through the threaded holes and bolt structure of multiple adjustment components, the workpiece can be fixed at multiple points and its position adjusted.

Benefits of technology

It achieves stable fixation of irregularly shaped parts, improves processing accuracy and convenience, and reduces the risk of workpiece damage.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223748583U_ABST
    Figure CN223748583U_ABST
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Abstract

The utility model relates to the technical field of clamps, in particular to a machine tool positioning clamp which comprises a connecting disc, a pressing plate, a positioning assembly, an adjusting assembly and a connecting base. The connecting disc is connected with a machine tool, a plurality of first threaded holes are formed in the connecting disc, and the first threaded holes are evenly distributed in the end face of the connecting disc. The adjusting assemblies are installed on the connecting disc through the first threaded holes, and the ends of the adjusting assemblies face the middle of the connecting disc. The positioning assembly is installed in the middle of the top end of the connecting disc, and the top end is matched with a machine tool machining workpiece in shape. The bottom end of a workpiece is connected in an attached mode through the positioning assembly, the position of the workpiece is limited, meanwhile, the multiple adjusting assemblies drive the pressing plates to move towards the workpiece through the connecting bases respectively, the workpiece is fixed to the positioning assembly, the workpiece is fixed conveniently, the positions of the adjusting assemblies are adjusted through the multiple first threaded holes, and the machining efficiency is improved. The position of the pressing plate is adjusted, and workpieces of different shapes and sizes are fixed to the positioning assembly.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, specifically relates to a machine tool positioning fixture. BACKGROUND

[0002] In order to improve workpiece machining precision, commonly adopt machine tool (for example milling machine, lathe etc. Machining equipment) processing, for workpiece processing a kind of mode, and milling machine, lathe etc. It is more inconvenient to be fixed and positioned to workpiece by three-jaw chuck, therefore, a kind of machine tool positioning fixture is proposed to fix and position special-shaped part. UTILITY MODEL CONTENTS

[0003] The utility model aims at the problems in the background art, proposes a kind of machine tool positioning fixture.

[0004] The utility model discloses a kind of machine tool positioning fixtures, including connecting disc, pressing plate, positioning assembly, adjusting assembly and connecting seat;

[0005] Connecting disc is connected with machine tool, and multiple first threaded holes are provided on the connecting disc, and the multiple first threaded holes are evenly distributed on the end face of the connecting disc;

[0006] The number of adjusting assembly is at least two, and adjusting assembly is installed on the connecting disc by first threaded hole and the end part is arranged towards the middle part of connecting disc;

[0007] Positioning assembly is installed in the top end middle part of connecting disc and the top end shape is cooperated with the shape of machine tool processing workpiece and is arranged;

[0008] Connecting seat is rotatably installed in one end of adjusting assembly, and one end is arranged towards the upper portion of positioning assembly;

[0009] Pressing plate is installed in one end of connecting seat and is connected with machine tool processing workpiece.

[0010] Preferably, adjusting assembly includes first bolt, sleeve, adjusting rod and knob;

[0011] First bolt is installed on the connecting disc by first threaded hole and the top end is above first threaded hole, and first bolt is connected with first threaded hole in cooperation;

[0012] Sleeve is installed in the top end of first bolt and the end part is arranged towards the center of connecting disc;

[0013] Adjusting rod is inserted in the middle part of sleeve and the end part is connected with connecting seat;

[0014] Knob is arranged in the other end of adjusting rod.

[0015] The middle part of the sleeve is provided with a second threaded hole, and the outer side of the adjusting rod is provided with a thread.

[0016] Preferably, the connecting seat comprises a sleeve, a second bolt and a connecting column.

[0017] The sleeve is rotatably installed at one end of the adjusting rod and has a hollow middle part.

[0018] The connecting column is inserted into the inner side of one end of the sleeve and connected with the pressing plate.

[0019] The second bolt is arranged at the top of one end of the sleeve and penetrates through the sleeve and the connecting column and is installed in the sleeve and the connecting column.

[0020] Preferably, the top and bottom of one end of the sleeve and one end of the connecting column are all provided with a third threaded hole, and the second bolt is accommodated in the third threaded hole in the cooperating installation state of the second bolt and the sleeve and the connecting column.

[0021] Preferably, one end of the adjusting rod is provided with a connecting head extending to the inner side of the sleeve, and the other end of the sleeve is provided with a limiting ring sleeved on the end of the connecting head.

[0022] Preferably, the positioning assembly comprises a supporting block, a third bolt and an installation groove.

[0023] The installation groove is arranged in the middle part of the top end of the connecting disc.

[0024] The supporting block is installed at the inner side of the installation groove and has a top end shape matched with the machine tool workpiece and a bottom end middle part provided with a threaded groove.

[0025] The third bolt is arranged at the bottom end of the connecting disc and connected with the threaded groove through the connecting disc.

[0026] Preferably, the inner side bottom end of the installation groove is provided with a clamping groove, and the bottom end of the supporting block has a rectangular projection shape, and the bottom end of the supporting block is accommodated in the clamping groove in the cooperating installation state of the supporting block and the installation groove.

[0027] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0028] The utility model discloses a positioning assembly workpiece bottom end adhering connection and the position is limited, and multiple adjusting assemblies are driven to the workpiece by the connecting seat and move the pressing plate, and the workpiece is fixed on the positioning assembly, so that the workpiece is fixed conveniently, and the position of the adjusting assembly is adjusted through multiple first threaded holes, the position of the pressing plate is adjusted, and the workpieces of different shapes and sizes are fixed on the positioning assembly. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figures 1-2It is a perspective view of an embodiment of the utility model.

[0030] Figure 3 It is a structure schematic diagram of adjusting assembly in an embodiment of the utility model.

[0031] Figure 4 It is a structure schematic diagram of adjusting assembly in an embodiment of the utility model.

[0032] Figure 5 It is a structure schematic diagram of adjusting assembly in an embodiment of the utility model.

[0033] Reference Signs: 1, connecting disc;2, first threaded hole;3, supporting block;4, pressing plate;5, sleeve;6, first bolt;7, sleeve pipe;8, adjusting rod;9, knob;10, second bolt;11, third bolt;12, second threaded hole;13, connecting head;14, third threaded hole;15, limiting ring;16, threaded groove;17, installation groove;18, clamping groove;19, connecting column. DETAILED DESCRIPTION

[0034] Embodiment one

[0035] As Figures 1-5 shown, the utility model discloses a machine tool positioning fixture, including connecting disc 1, pressing plate 4, positioning assembly, adjusting assembly and connecting seat;

[0036] Connecting disc 1 is connected with machine tool, and is equipped with multiple first threaded holes 2 on connecting disc 1, and multiple first threaded holes 2 are evenly distributed on the end face of connecting disc 1.

[0037] The number of adjusting assembly is at least two, adjusting assembly is installed on connecting disc 1 through first threaded hole 2 and is arranged with end towards the middle part of connecting disc 1.

[0038] Positioning assembly is installed in the top end middle part of connecting disc 1 and is arranged with top end shape and machine tool processing workpiece shape cooperation.

[0039] Connecting seat is rotationally installed in one end of adjusting assembly, and one end is arranged towards the top of positioning assembly.

[0040] Pressing plate 4 is installed in one end of connecting seat and is connected with machine tool processing workpiece.

[0041] In this embodiment, the workpiece is placed on the top of the positioning component, so that the positioning component is in contact with the bottom of the workpiece to position it. At the same time, multiple adjustment components are installed on the outside of the workpiece through the first threaded hole 2, and the adjustment components drive the connecting seat to move towards the workpiece, so that the connecting seat drives the pressure plate 4 to contact the workpiece, and the multiple pressure plates 4 cooperate to squeeze the workpiece, fixing the workpiece on the positioning component, making the workpiece easy to fix. At the same time, the position of the adjustment component is adjusted through the multiple first threaded holes 2, so that the position of the pressure plate 4 is adjusted, and workpieces of different shapes are fixed on the positioning component.

[0042] Example 2

[0043] like Figure 3 As shown, the machine tool positioning fixture proposed in this utility model differs from the first embodiment in that the adjustment assembly includes a first bolt 6, a sleeve 7, an adjustment rod 8, and a knob 9.

[0044] The first bolt 6 is installed on the connecting plate 1 through the first threaded hole 2 and its top end is located above the first threaded hole 2. The first bolt 6 is connected with the first threaded hole 2, so that the position of the first bolt 6 on the connecting plate 1 can be adjusted through multiple first threaded holes 2, thereby adjusting the force position of the workpiece, improving the convenience of workpiece clamping and fixing and reducing the possibility of workpiece damage.

[0045] The sleeve 7 is installed on the top of the first bolt 6 and its end is arranged facing the center of the connecting plate 1;

[0046] The adjusting rod 8 is inserted into the middle of the sleeve 7 and its end is connected to the connecting seat;

[0047] The knob 9 is located at the other end of the adjusting rod 8, and the size of the knob 9 is adapted to the size of a conventional tool. It is used to drive the adjusting rod 8 to rotate during use.

[0048] In an optional embodiment, the sleeve 7 is provided with a second threaded hole 12 in the middle and the adjusting rod 8 is provided with threads on the outside. When the sleeve 7 and the adjusting rod 8 are installed together, the adjusting rod 8 is accommodated in the second threaded hole 12.

[0049] In this embodiment, by connecting a tool to the knob 9, the knob 9 is rotated in the middle of the sleeve 7. Through the engagement of the thread of the adjusting rod 8 with the second threaded hole 12, the adjusting rod 8 moves linearly towards one end of the sleeve 7, while simultaneously driving the connecting seat and the pressure plate 4 to move towards the workpiece. This allows multiple pressure plates 4 to clamp and fix the workpiece. The position of the sleeve 7 is adjusted by the engagement of the first bolt 6 with multiple first threaded holes 2. The adjusting rod 8, driven by the knob 9, adjusts the position of the pressure plate 4 towards the workpiece, thereby clamping and fixing workpieces of different shapes and sizes.

[0050] Example 3

[0051] As Figure 4 shown, the utility model provides a machine tool positioning fixture, this embodiment compares with embodiment one, difference lies in, connecting seat includes sleeve 5, second bolt 10 and connecting column 19,

[0052] Sleeve 5 is rotatably installed at one end of adjusting rod 8, the middle part is hollow, and the outside diameter value of sleeve 5 is less than the outside thread diameter value of adjusting rod 8, for installing adjusting rod 8 at the inside of sleeve pipe 7 is more convenient;

[0053] Connecting column 19 is inserted at the inside of one end of sleeve 5 and is connected with pressing plate 4;

[0054] Second bolt 10 is arranged at the top of one end of sleeve 5 and is installed in sleeve 5 and connecting column 19, so that connecting column 19 is fixed at the inside of sleeve 5.

[0055] In an alternative embodiment, the top and bottom of one end of sleeve 5 and the end of connecting column 19 are each provided with a third threaded hole 14, and in the installed state of second bolt 10 in cooperation with sleeve 5 and connecting column 19, second bolt 10 is fitted in third threaded hole 14, for fixing and connecting connecting column 19 with sleeve 5 through second bolt 10 when in use, and allowing pressing plate 4 to be detachably installed with sleeve 5.

[0056] In an alternative embodiment, one end of adjusting rod 8 is provided with a connecting head 13 extending towards the inside of sleeve 5, and the other end of sleeve 5 is provided with a limiting ring 15 sleeved at the end of connecting head 13.

[0057] In this embodiment, connecting column 19 is inserted at the inside of sleeve 5 by pressing plate 4, and second bolt 10 is installed in third threaded hole 14, allowing pressing plate 4 to be detachably connected with sleeve 5, allowing the shape of pressing plate 4 to be replaced, and allowing sleeve 5 to be rotatably installed at one end of adjusting rod 8 through the cooperation of connecting head 13 and limiting ring 15, allowing pressing plate 4 to be rotatably adjusted through the cooperation of sleeve 5 and adjusting rod 8, and improving the convenience of connecting pressing plate 4 with workpieces.

[0058] Embodiment Four

[0059] As Figure 5 shown, the utility model provides a machine tool positioning fixture, this embodiment compares with embodiment one, difference lies in, positioning assembly includes supporting block 3, third bolt 11 and installation groove 17;

[0060] Installation groove 17 is arranged at the top middle part of connecting disc 1;

[0061] The support block 3 is installed at the inner side of the installation groove 17 and the top end shape is arranged to match the workpiece of the machine tool, and the bottom end middle part is provided with a threaded groove 16;

[0062] The third bolt 11 is arranged at the bottom end of the connecting disc 1 and is connected with the threaded groove 16 through the connecting disc 1.

[0063] In an optional embodiment, the inner side bottom end of the installation groove 17 is provided with a clamping groove 18, and the bottom end of the support block 3 is projected in a rectangular shape, and in the matching installation state of the support block 3 and the installation groove 17, the bottom end of the support block 3 is matched and accommodated in the clamping groove 18.

[0064] In the embodiment, the third bolt 11 is installed in the threaded groove 16 through the connecting disc 1, so that the support block 3 is fixed at the inner side of the installation groove 17, the support block 3 is detachably connected with the connecting disc 1, the top end shape of the support block 3 is adjusted and replaced, the top end shape of the support block 3 is matched and connected with the bottom end of the workpiece, the position of the workpiece is limited by the support block 3, the bottom end of the support block 3 is projected in a rectangular shape, and the clamping groove 18 is wrapped around the bottom end of the support block 3, so that the rotation of the support block 3 is limited by the clamping groove 18.

[0065] In the embodiment, the third bolt 11 is installed in the threaded groove 16 through the connecting disc 1, so that the support block 3 is fixed at the inner side of the installation groove 17, the support block 3 is detachably connected with the connecting disc 1, the top end shape of the support block 3 is adjusted and replaced, the top end shape of the support block 3 is matched and connected with the bottom end of the workpiece, the position of the workpiece is limited by the support block 3, the bottom end of the support block 3 is projected in a rectangular shape, and the clamping groove 18 is wrapped around the bottom end of the support block 3, so that the rotation of the support block 3 is limited by the clamping groove 18.

[0066] The embodiments of the utility model are described in detail above combined with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range of the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. A machine tool positioning fixture, characterized by, The connecting disc (1), the pressing plate (4), the positioning assembly, the adjusting assembly and the connecting seat are included. The connecting disc (1) is connected with the machine tool, and a plurality of first threaded holes (2) are arranged on the connecting disc (1) and uniformly distributed on the end face of the connecting disc (1). The number of the adjusting assembly is at least two, the adjusting assembly is installed on the connecting disc (1) through the first threaded hole (2) and arranged with the end part towards the middle part of the connecting disc (1). The positioning assembly is installed in the middle part of the top end of the connecting disc (1) and arranged with the top end shape matched with the shape of the workpiece machined by the machine tool. The connecting seat is rotatably installed at one end of the adjusting assembly and arranged with one end towards the upper part of the positioning assembly. The pressing plate (4) is installed at one end of the connecting seat and connected with the workpiece machined by the machine tool.

2. A machine position fixture according to claim 1, wherein The adjusting assembly includes the first bolt (6), the sleeve (7), the adjusting rod (8) and the knob (9). The first bolt (6) is installed on the connecting disc (1) through the first threaded hole (2) and arranged with the top end above the first threaded hole (2), and the first bolt (6) is connected with the first threaded hole (2) in a matched mode. The sleeve (7) is installed at the top end of the first bolt (6) and arranged with the end part towards the center of the connecting disc (1). The adjusting rod (8) is inserted into the middle part of the sleeve (7) and connected with the end part of the connecting seat. The knob (9) is arranged at the other end of the adjusting rod (8).

3. A machine position fixture according to claim 2, wherein The middle part of the sleeve (7) is provided with the second threaded hole (12), and the outer side of the adjusting rod (8) is provided with a thread, and in the matched installation state of the sleeve (7) and the adjusting rod (8), the adjusting rod (8) is matched and accommodated in the second threaded hole (12).

4. A machine position fixture according to claim 2, wherein The connecting seat includes the sleeve (5), the second bolt (10) and the connecting column (19). The sleeve (5) is rotatably installed at one end of the adjusting rod (8) and has a hollow shape in the middle part. The connecting column (19) is inserted into the inner side of one end of the sleeve (5) and connected with the pressing plate (4). The second bolt (10) is arranged at the top part of one end of the sleeve (5), penetrates through the sleeve (5) and the connecting column (19) and is installed in the sleeve (5) and the connecting column (19).

5. A machine position fixture according to claim 4, wherein The top part and the bottom part of one end of the sleeve (5) and one end of the connecting column (19) are all provided with the third threaded hole (14), and in the matched installation state of the second bolt (10) and the sleeve (5) and the connecting column (19), the second bolt (10) is matched and accommodated in the third threaded hole (14).

6. A machine position fixture according to claim 4, wherein One end of the adjusting rod (8) is provided with the connecting head (13) extending towards the inner side of the sleeve (5), and the other end of the sleeve (5) is provided with the limiting ring (15) sleeved at the end part of the connecting head (13).

7. A machine position fixture according to claim 1 wherein, The positioning assembly includes the supporting block (3), the third bolt (11) and the installation groove (17). The installation groove (17) is arranged in the middle part of the top end of the connecting disc (1). The supporting block (3) is installed at the inner side of the installation groove (17) and arranged with the top end shape matched with the workpiece machined by the machine tool, and the bottom end middle part is provided with the threaded groove (16). The third bolt (11) is arranged at the bottom end of the connecting disc (1) and connected with the threaded groove (16) in a matched mode through the connecting disc (1).

8. A machine position fixture according to claim 7, wherein, The inner bottom end of the mounting groove (17) is provided with a clamping groove (18), and the bottom end of the supporting block (3) is in a rectangular projection shape, and in the matching installation state of the supporting block (3) and the mounting groove (17), the bottom end of the supporting block (3) is matched and accommodated in the clamping groove (18).