Deep hole turning clamp

Abstract

The utility model discloses a deep hole turning clamp which comprises a chuck connecting disc, a connecting bottom plate and a balancing weight, the chuck connecting disc is detachably connected to a lathe chuck, and the connecting bottom plate and the balancing weight are detachably connected to the chuck connecting disc; the connecting bottom plate is configured to bear a product workpiece to be machined; the product workpiece is provided with a deep hole to be machined, and the product workpiece is placed on the connecting bottom plate, so that the deep hole to be machined is located on the central axis of the lathe chuck; the weight and the installation position of the balancing weight are determined so that the overall mass center of the clamp and the product workpiece can be located on the central axis of the lathe chuck. According to the utility model, deep feature forming can be realized at one time, and the cost of clamps, time and cutters is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe processing fixtures, in particular to a deep hole lathe processing fixture. Background Art

[0002] Machining deep, square holes in hydraulic valve bodies with an eccentricity of approximately 100mm presents challenges such as difficult fixture positioning, difficult tooling, and processing difficulties. This requires specialized tooling and tooling, resulting in lengthy commissioning cycles and high production costs.

[0003] Therefore, technicians in this field are committed to developing a deep hole turning fixture that can form deep cavity features in one go, effectively reducing fixture, time and tool costs. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is how to provide a deep hole turning fixture to solve the problems of difficult positioning of the fixture, difficult use of the tool, and difficult processing.

[0005] To achieve the above-mentioned objectives, the utility model provides a deep hole turning fixture, comprising a chuck connecting plate, a connecting base plate and a counterweight block, wherein the chuck connecting plate is detachably connected to the lathe chuck, and the connecting base plate and the counterweight block are detachably connected to the chuck connecting plate; the connecting base plate is configured to carry a product workpiece to be processed; the product workpiece has a deep hole to be processed, and the product workpiece is placed on the connecting base plate so that the deep hole to be processed is located on the central axis of the lathe chuck; the weight and installation position of the counterweight block are determined so that the overall center of mass of the fixture and the product workpiece is located on the central axis of the lathe chuck.

[0006] Furthermore, the chuck connecting plate is concentrically arranged with the lathe chuck.

[0007] Furthermore, the connecting base plate includes a mounting portion and a bearing portion that are integrally provided, the mounting portion is detachably connected to the chuck connecting plate, and the bearing portion is configured to bear the product workpiece to be processed.

[0008] Furthermore, the mounting portion is an arc-shaped plate, the arc-shaped edge of the arc-shaped plate is flush with the outer peripheral edge of the chuck connecting plate, the bearing portion is connected to the straight edge of the arc-shaped plate, the bearing portion is perpendicular to the mounting portion, and the bearing portion has a bearing plane, which is configured to bear the product workpiece to be processed.

[0009] Furthermore, the chuck connecting plate is detachably connected to the lathe chuck via a first screw.

[0010] Furthermore, the counterweight block is detachably connected to the chuck connecting plate via a second screw.

[0011] Furthermore, the mounting portion is detachably connected to the chuck connecting plate via a third screw.

[0012] Furthermore, a positioning pin is provided between the mounting portion and the chuck connecting plate.

[0013] Furthermore, a stepped positioning pin is provided between the bearing portion and the product workpiece.

[0014] Furthermore, the product workpiece is detachably connected to the bearing portion.

[0015] The beneficial effects of the utility model are:

[0016] 1. Deep features can be formed in one go, effectively reducing fixture, time and tool costs.

[0017] 2. It can effectively ensure the stability of processing dimensions and improve production efficiency and processing quality.

[0018] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a preferred embodiment of the utility model;

[0020] Figure 2 It is an exploded view of a preferred embodiment of the present utility model.

[0021] Among them, 10-clamp, 11-first screw, 12-chuck connecting plate, 13-counterweight block, 14-second screw, 15-locating pin, 16-connecting base plate, 17-step locating pin, 18-third screw, 20-product workpiece. DETAILED DESCRIPTION

[0022] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0023] In the drawings, components with identical structures are denoted by the same reference numerals, and components with similar structures or functions are denoted by similar reference numerals. The dimensions and thicknesses of each component shown in the drawings are arbitrary and are not limited by the present invention. For clarity, the thicknesses of components in some places in the drawings are exaggerated.

[0024] Example

[0025] like Figure 1 and Figure 2 As shown, this embodiment provides a deep hole turning fixture 10, including a chuck connecting plate 12, a connecting base plate 16, and a counterweight 13. The chuck connecting plate 12 is detachably connected to the lathe chuck, and the connecting base plate 16 and the counterweight 13 are detachably connected to the chuck connecting plate 12. The connecting base plate 16 is configured to carry a product workpiece 20 to be processed. The product workpiece 20 has a deep hole to be processed, and the product workpiece 20 is placed on the connecting base plate 16 so that the deep hole to be processed is located on the central axis of the lathe chuck. The weight and installation position of the counterweight 13 are determined so that the overall center of mass of the fixture 10 and the product workpiece 20 is located on the central axis of the lathe chuck. The chuck connecting plate 12 is arranged concentrically with the lathe chuck.

[0026] The connecting base plate 16 includes a mounting portion and a carrying portion that are integrally provided. The mounting portion is detachably connected to the chuck connecting plate 12 , and the carrying portion is configured to carry a product workpiece 20 to be processed.

[0027] The mounting portion is an arc-shaped plate, the arc-shaped edge of the arc-shaped plate is flush with the outer peripheral edge of the chuck connecting plate 12, the bearing portion is connected to the straight edge of the arc-shaped plate, the bearing portion is perpendicular to the mounting portion, and the bearing portion has a bearing plane, which is configured to bear the product workpiece 20 to be processed.

[0028] The chuck connection plate 12 is detachably connected to the lathe chuck by a first screw 11. The counterweight 13 is detachably connected to the chuck connection plate 12 by a second screw 14. The mounting portion is detachably connected to the chuck connection plate 12 by a third screw 18.

[0029] In this embodiment, the first screws 11 are three M12 screws, the second screws 14 are two M6 screws, and the third screws are three M12 screws.

[0030] A positioning pin 15 is provided between the mounting portion and the chuck connection plate 12. A stepped positioning pin 17 is provided between the bearing portion and the product workpiece 20. The product workpiece 20 is detachably connected to the bearing portion.

[0031] In this embodiment, the positioning pins 15 are two φ8 pins, and the stepped positioning pins 17 are two φ7 stepped pins.

[0032] The fixture design of this utility model can be used for turning centers, CNC lathes and ordinary lathes. The fixture is installed on the lathe chuck on the lathe spindle connecting rod and locked with screws to achieve turning processing of deep cavities of square valve bodies.

[0033] Because the product's eccentricity exceeds 100mm, vibration easily occurs during turning, leading to machine tool jitter and an inability to increase the machining speed. Therefore, a counterweight in the fixture is used to balance the eccentric force and vibration generated during rotation. After the entire fixture is designed, the center of mass of the fixture is simulated in the software to ensure that the center of rotation of the fixture and the product is aligned with the lathe's rotation axis. This ensures that once the fixture is installed on the lathe, jitter and vibration will not occur during machining.

[0034] The utility model realizes the optimization of deep hole processing of a square hydraulic valve body, so that high-quality processing tasks can be completed on the basis of high efficiency and low cost.

[0035] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A deep hole turning fixture, characterized in that: It includes a chuck connecting plate, a connecting base plate and a counterweight block, the chuck connecting plate is detachably connected to the lathe chuck, the connecting base plate and the counterweight block are detachably connected to the chuck connecting plate; the connecting base plate is configured to carry a product workpiece to be processed; the product workpiece has a deep hole to be processed, and the product workpiece is placed on the connecting base plate so that the deep hole to be processed is located on the central axis of the lathe chuck; the weight and installation position of the counterweight block are determined so that the overall center of mass of the fixture and the product workpiece is located on the central axis of the lathe chuck.

2. The deep hole turning fixture according to claim 1, characterized in that: The chuck connecting plate is concentrically arranged with the lathe chuck.

3. The deep hole turning fixture according to claim 1, characterized in that: The connecting base plate includes a mounting portion and a bearing portion which are integrally provided. The mounting portion is detachably connected to the chuck connecting plate, and the bearing portion is configured to bear the product workpiece to be processed.

4. The deep hole turning fixture according to claim 3, characterized in that: The mounting portion is an arc-shaped plate, the arc-shaped edge of the arc-shaped plate is flush with the outer peripheral edge of the chuck connecting plate, the bearing portion is connected to the straight edge of the arc-shaped plate, the bearing portion is perpendicular to the mounting portion, and the bearing portion has a bearing plane, which is configured to bear the product workpiece to be processed.

5. The deep hole turning fixture according to claim 1, characterized in that: The chuck connecting plate is detachably connected to the lathe chuck via a first screw.

6. The deep hole turning fixture according to claim 1, characterized in that: The counterweight block is detachably connected to the chuck connecting plate via a second screw.

7. The deep hole turning fixture according to claim 4, characterized in that: The mounting portion is detachably connected to the chuck connecting plate by a third screw.

8. The deep hole turning fixture according to claim 7, characterized in that: A positioning pin is provided between the mounting portion and the chuck connecting plate.

9. The deep hole turning fixture according to claim 4, characterized in that: A step positioning pin is provided between the bearing portion and the product workpiece.

10. The deep hole turning fixture according to claim 4, characterized in that: The product workpiece is detachably connected to the carrier portion.

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