Turning clamp
By designing the connecting nut and positioning rod structure of the lathe fixture, the coaxiality problem of the existing fixture when machining inner holes and outer circles was solved, and efficient and high-precision machining of parts was achieved.
Patent Information
- Application Number
- CN202520084645.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Existing lathe fixtures are difficult to meet coaxiality requirements when machining internal holes and external diameters, and require multiple clamping operations, resulting in large errors and reduced machining accuracy and efficiency.
A machining fixture was designed. By setting a connecting nut and a positioning rod inside the fixture body, combined with a limiting component, the inner hole and outer circle can be machined simultaneously in one clamping. The front section of the positioning rod is used to fix the machined part, and the positioning rod is prevented from loosening by the limiting groove and locking screw, thus ensuring machining accuracy.
It enables high-precision machining of parts, improves machining efficiency and accuracy, meets multiple machining requirements, and reduces clamping errors.
Smart Images
Figure CN223684884U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a fixture technical field, and specifically is a lathe fixture. BACKGROUND
[0002] This part positioning inner hole and each outer circle coaxiality requirement is high, and the claw clamping outer circle processes positioning inner hole or the outer circle processes positioning inner hole and cannot satisfy coaxiality requirement. If the mandrel is used to position inner hole and end face positioning processing, needs multiple clamping, and the clamping error influences the machining precision of the part, and greatly reduces the work efficiency. UTILITY MODEL CONTENTS
[0003] The utility model discloses a purpose is provided with a lathe fixture, and the fixture structure is reasonable to thread inner hole and end face positioning, and clamping is convenient, and once clamping can process simultaneously inner position inner hole and each outer circle, guarantees the machining precision of the part.
[0004] The utility model discloses a technical scheme that solves its technical problem is as follows: a lathe fixture, its structure includes the clamping body, connecting nut, limit piece and positioning rod, the inner chamber of clamping body is equipped with connecting nut mounting hole and positioning hole, connecting nut mounting hole and positioning hole are communicated, connecting nut is equipped in connecting nut mounting hole, positioning rod is equipped in positioning hole, the small end outside of clamping body is equipped with the limit piece that prevents positioning rod to shift, and the utility model discloses a lathe fixture.
[0005] Further, the small end outside of clamping body is equipped with the limit hole, the limit piece includes locking screw and screw pin, the screw pin is inserted into the limit hole, the locking screw is screwed with screw pin, and one end of locking screw passes through screw pin and limit hole and abuts against positioning hole.
[0006] Further, the positioning rod includes front section rod, middle section rod and rear section rod, one end of front section rod is connected with middle section rod, the end of front section rod is equipped with the external thread that cooperates with workpiece, the other end of middle section rod is connected with rear section rod, and the end of rear section rod is equipped with the external thread that cooperates with connecting nut, and the lateral wall of middle section rod is equipped with the limit slot that cooperates with limit piece.
[0007] Further, the positioning rod is inserted into the positioning hole of clamping body, and the front section rod of positioning rod is placed outside clamping body.
[0008] Further, the big end of clamping body is positioned through the taper hole, and the big end surface of clamping body is equipped with a plurality of screws.
[0009] Further, one end of connecting nut is connected with machine tool pull rod.
[0010] The utility model discloses the beneficial effects are as follows:
[0011] The utility model discloses a fixture through setting up connecting nut in the clamping body, one end of connecting nut is connected with machine tool pull rod, and the other end of connecting nut is screwed with positioning rod, and the front section rod of positioning rod is fixed to process part, thereby realizing the processing of the outside circle and the hole of the processed part, satisfying the requirement of multiple processing by once clamping, and the processed part can also reach the precision requirement, and the processing efficiency and processing precision are improved.
[0012] Through setting up the limiting hole in the lateral wall of the small end of the clamping body, and setting up the locking screw in the limiting hole, limiting and fixing are carried out through the locking screw and the positioning rod, the positioning rod is prevented from loosening in the processing, and the processing precision of the processed part is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the structural schematic diagram of the utility model;
[0014] Figure 2 It is Figure 1 It is the sectional structure schematic diagram of the clamping body;
[0015] Figure 3 It is the left view of the clamping body;
[0016] Figure 4 It is the structural schematic diagram of the positioning rod.
[0017] In the drawing:
[0018] 1 clamping body, 11 connecting nut mounting hole, 12 limiting hole, 13 positioning hole, 14 screw, 2 connecting nut, 3 locking screw, 4 screw pin, 5 positioning rod, 51 front section rod, 52 middle section rod, 53 limiting groove, 54 rear section rod, 6 processed part. DETAILED DESCRIPTION
[0019] The utility model discloses a lathe fixture makes following detailed explanation.
[0020] Please refer to Figures 1 to 4 The utility model provides a technical scheme: a lathe fixture, including clamping body 1, connecting nut 2, limiting piece and positioning rod 5, the inner chamber of clamping body 1 is equipped with connecting nut mounting hole 11 and positioning hole 13, the connecting nut mounting hole and positioning hole communicate, the connecting nut 2 is equipped in connecting nut mounting hole 11, the positioning rod 5 is equipped in positioning hole 13, the small end outside of clamping body 1 is equipped with the limiting piece of preventing positioning rod to shift, one end of connecting nut is connected with machine tool pull rod, and the clamping body is positioned with big end taper hole, is fastened together through screw 14 and main shaft, and the other end of connecting nut is screwed with positioning rod 5,
[0021] The small end of the clamp body 1 is provided with a limiting hole 12, the limiting member comprises a locking screw 3 and a screw pin 4, the screw pin 4 is inserted into the limiting hole 12, the locking screw 3 is threadedly connected with the screw pin 4, and one end of the locking screw 3 is abutted against a positioning rod 5 through the screw pin and the limiting hole 12. In order to improve the limiting effect, a limiting groove 53 is arranged on the side wall of the positioning rod, the contact area between the locking screw 3 and the positioning rod 5 is increased, and one end of the locking screw is tightly abutted against the limiting groove.
[0022] The positioning rod 5 comprises a front rod 51, a middle rod 52 and a rear rod 53, one end of the front rod 51 is connected with the middle rod 52, the end of the front rod 51 is provided with external threads matched with a processed part 6, the other end of the middle rod 52 is connected with the rear rod 53, the end of the rear rod 53 is provided with external threads matched with a connecting nut 2, and the side wall of the middle rod 52 is provided with the limiting groove 53 matched with the limiting member.
[0023] The positioning rod 5 is inserted into the positioning hole 13 of the clamp body 1, and the front rod 51 of the positioning rod is arranged outside the clamp body 1, the processed part is fixed by the front rod of the positioning rod 5, the outer wall and the inner hole of the processed part can be machined by one-time clamping, and the machining efficiency is greatly improved.
[0024] The connecting nut 2 is connected with a machine tool pull rod, the clamp body 1 is positioned by the large end taper hole, and is fastened together with the main shaft by the screw 14. The limiting hole 12 is drilled on one side of the circumference of the clamp body, the screw pin 4 and the locking screw 3 are installed through the limiting hole 12. The positioning hole 13 is arranged in the small end of the clamp body 1, the positioning rod 5 is installed in the positioning hole, and then the positioning rod 5 is limited by the locking screw 3, so that the positioning rod 5 is prevented from loosening in the machining process of the processed part. The rear rod 54 of the positioning rod is connected with the connecting nut 2 in a threaded mode. During machining, the processed part is connected with the external threads of the positioning rod in an internal thread mode, the pull rod, the connecting nut, the positioning rod and the workpiece are driven by the hydraulic oil cylinder, the end face of the workpiece is abutted against the positioning surface of the clamp body 1, and the clamping of the part is completed.
[0025] Through on-site machining verification, the tooling meets the machining requirements of the part on the numerical control lathe, and the machined part meets the precision requirements.
[0026] The above description is only used to illustrate some principles of the utility model, the specification is not intended to limit the utility model to the specific structures and application ranges shown, and therefore all possible corresponding modifications and equivalents belong to the patent range applied by the utility model.
[0027] In addition to the technical features described in the specification, the remaining technical features are known to those skilled in the art.
Claims
1. A bench vise characterized by, The clamp body is internally provided with a connecting nut mounting hole and a positioning hole, the connecting nut mounting hole and the positioning hole are communicated, the connecting nut is arranged in the connecting nut mounting hole, the positioning rod is arranged in the positioning hole, and the small end of the clamp body is externally provided with a limiting member for preventing the positioning rod from moving.
2. A fixture as claimed in claim 1, wherein The small end of the clamp body is externally provided with a limiting hole, the limiting member comprises a locking screw and a screw pin, the screw pin is inserted into the limiting hole, the locking screw is threadedly connected with the screw pin, and one end of the locking screw abuts against the positioning hole through the screw pin and the limiting hole.
3. A bench clamp according to claim 1 or 2, characterised in that The positioning rod comprises a front rod, a middle rod and a rear rod, one end of the front rod is connected with the middle rod, the end of the front rod is externally provided with an external thread matched with the workpiece, the other end of the middle rod is connected with the rear rod, the end of the rear rod is externally provided with an external thread matched with the connecting nut, and the sidewall of the middle rod is provided with a limiting groove matched with the limiting member.
4. The fixture of claim 1 wherein, The positioning rod is inserted into the positioning hole of the clamp body, and the front rod of the positioning rod is arranged outside the clamp body.
5. The fixture of claim 1 wherein, The large end of the clamp body is positioned through a tapered hole, and the large end of the clamp body is externally provided with a plurality of screws.
6. A vise according to claim 1, wherein, One end of the connecting nut is connected with the machine tool pull rod.