Tool clamp for pulse wheel eccentric turning
By designing a tooling fixture that includes a fixed plate, an eccentric positioning plate, and an internal support structure, the problems of inaccurate positioning and unstable fixing in the machining of eccentric holes in pulse wheels were solved, achieving fast and accurate dual fixing and improving machining accuracy and efficiency.
Patent Information
- Application Number
- CN202423052537.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-11
AI Technical Summary
In the existing technology, the lack of effective tooling fixtures during the machining of eccentric holes in pulse wheels leads to inaccurate positioning and unstable fixing, affecting machining accuracy and efficiency.
A tooling fixture was designed, comprising a fixed plate, an eccentric positioning plate, a limiting bushing, a spring expansion sleeve, a tapered inner support mandrel, and inner support screws. Through the combination of the inner support structure and the lateral positioning plate with the clamping bracket, the pulse wheel is double-fixed, ensuring fast, accurate, and secure positioning.
It achieves rapid and accurate positioning and secure clamping of the pulse wheel, avoiding displacement problems during processing, improving processing accuracy and efficiency, and facilitating disassembly and replacement.
Smart Images
Figure CN223643265U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of accessory for eccentric machining of pulse wheel, especially to a tool fixture for eccentric machining of pulse wheel. BACKGROUND
[0002] The pulse wheel is an important part of engineering machinery, and its structure is shown in the figure. Figure 1 During the machining process, eccentric holes 52 need to be machined on the pulse wheel 50, and the eccentricity of the eccentric holes 52 plays a very important role in assembly and is a key assembly dimension. Therefore, a special tool fixture needs to be designed when the pulse wheel 50 is machined. SUMMARY
[0003] The utility model aims at providing a tool fixture for eccentric machining of pulse wheel.
[0004] The utility model discloses the innovation lies in: the application clamps the tooth of pulse wheel, and positioning is convenient, forms first heavy fixing to pulse wheel, forms second heavy fixing to pulse wheel through inner support structure, therefore, the application positioning is quick, accurate, and clamping firmness is good.
[0005] To achieve the above-mentioned utility model purposes, the technical scheme of the utility model is as follows:
[0006] A tool fixture for eccentric machining of pulse wheel, comprising a fixed disc, an eccentric positioning disc is arranged at the center of the fixed disc, a limiting bushing is sleeved on the top outer side of the eccentric positioning disc, a spring expansion sleeve is arranged between the top of the eccentric positioning disc and the inside of the limiting bushing, the inner cavity of the spring expansion sleeve is conical with a large upper part and a small lower part, and a tapered inner support core rod is arranged in the inner cavity of the spring expansion sleeve; an inner support screw is arranged at the center of the tapered inner support core rod; the center of the spring expansion sleeve, the tapered inner support core rod, and the inner support screw are coaxial and form an inner support structure; the top of the spring expansion sleeve is higher than the top of the limiting bushing, and a height difference is formed between the two; a lateral positioning plate and a lateral clamping support are further arranged on the fixed disc, the lateral positioning plate and the lateral clamping support are symmetrically arranged, a lateral positioning core rod is arranged on the lateral positioning plate, and a lateral clamping screw corresponding to the lateral positioning core rod is arranged on the lateral clamping support.
[0007] Further, a balance block is further arranged on the fixed disc, the balance block is detachably connected with the fixed disc, the balance block is arranged on the central vertical line of the connecting line of the lateral positioning plate and the lateral clamping support, and forms an equilateral triangle structure with the lateral positioning plate and the lateral clamping support.
[0008] Further, the height difference between the top of the spring expansion sleeve and the top of the limiting bushing is consistent with or slightly lower than the height of the central through hole of the pulse wheel.
[0009] Furthermore, the fixed plate and the eccentric positioning plate, as well as the eccentric positioning plate and the limiting bushing, are all connected by screws.
[0010] The beneficial effects of this utility model are:
[0011] First: This application clamps the teeth of the pulse wheel, positioning it quickly, accurately, and conveniently, forming the first layer of fixation for the pulse wheel. The internal support structure forms the second layer of fixation for the pulse wheel. With double fixation, the clamping firmness is good, and there will be no displacement problems during the processing.
[0012] Second: The internal support structure of the spring expansion sleeve, tapered inner support mandrel, and inner support screw is easy to disassemble, and the spring expansion sleeve is easy to replace. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the pulse wheel structure.
[0014] Figure 2 This is a perspective view of the present utility model.
[0015] Figure 3 This is a front sectional view of the present invention.
[0016] Figure 4 This is a top view of the present invention.
[0017] Figure 5 This is a schematic diagram of the assembly of the present invention with the pulse wheel.
[0018] In the diagram: 10 is the fixed plate, 11 is the eccentric positioning plate, 12 is the limiting bushing, 13 is the spring expansion sleeve, 14 is the tapered inner support mandrel, 15 is the inner support screw, 16 is the balance block, 20 is the lateral positioning plate, 21 is the lateral positioning mandrel, 30 is the lateral clamping bracket, 31 is the lateral clamping screw, and 40 is the screw. Detailed Implementation
[0019] The technical solutions in the embodiments of this utility model will now be clearly and completely described with reference to the accompanying drawings.
[0020] A tooling fixture for machining an eccentric pulse wheel includes a fixed plate (10), an eccentric positioning plate (11) at the center of the fixed plate (10), a limiting bushing (12) on the outer side of the top of the eccentric positioning plate (11), a spring expansion sleeve (13) between the top of the eccentric positioning plate (11) and the interior of the limiting bushing (12), the inner cavity of the spring expansion sleeve (13) being tapered with a larger upper part and a smaller lower part, and a tapered inner support mandrel (14) being provided in the inner cavity of the spring expansion sleeve (13); an inner support screw (15) is provided at the center of the tapered inner support mandrel (14); the spring expansion sleeve (13)... The tapered inner support mandrel (14) and the inner support screw (15) are coaxial and form an inner support structure; the top of the spring expansion sleeve (13) is higher than the top of the limiting bushing (12), and a height difference is formed between the two; the fixed plate (10) is also provided with a lateral positioning plate (20) and a lateral clamping bracket (30), the lateral positioning plate (20) and the lateral clamping bracket (30) are symmetrically arranged, the lateral positioning mandrel (21) is provided on the lateral positioning plate (20), and the lateral clamping bracket (30) is provided with a lateral clamping screw (31) corresponding to the lateral positioning mandrel (21).
[0021] Furthermore, a balance block (16) is also provided on the fixed plate (10). The balance block (16) is detachably connected to the fixed plate (10). The balance block (16) is located on the center vertical line of the line connecting the lateral positioning plate (20) and the lateral clamping bracket (30), and forms an equilateral triangle structure with the lateral positioning plate and the lateral clamping bracket.
[0022] Furthermore, the height difference between the top of the spring expansion sleeve (13) and the top of the limiting bushing (12) is the same as or slightly lower than the height of the central through hole of the pulse wheel (50).
[0023] Furthermore, the fixed plate (10) and the eccentric positioning plate (11), and the eccentric positioning plate (11) and the limiting bushing (12) are both connected by screws (40).
[0024] The working principle of this application is as follows: (Reference) Figure 5 )
[0025] The pulse wheel 50 is fitted onto the outside of the spring expansion sleeve 13. The lateral positioning mandrel 21 and the lateral clamping screw 31 hold the two sides of a shift tooth 51, thus fixing the pulse wheel 50 for the first time. Tighten the inner support screw 15, and the spring expansion sleeve 13 expands and presses against the inner wall of the pulse wheel 50, thus fixing the pulse wheel 50 for the second time. Finally, the fixing plate 10 is installed on the three-jaw chuck of the machining center, and the pulse wheel 50 can be eccentrically machined.
[0026] The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
Claims
1. A tooling fixture for machining an eccentric pulse wheel, characterized in that: The system includes a fixed plate (10), an eccentric positioning plate (11) is provided at the center of the fixed plate (10), a limiting bushing (12) is fitted on the outer side of the top of the eccentric positioning plate (11), a spring expansion sleeve (13) is provided between the top of the eccentric positioning plate (11) and the inside of the limiting bushing (12), the inner cavity of the spring expansion sleeve (13) is tapered with a larger upper part and a smaller lower part, and a tapered inner support mandrel (14) is provided in the inner cavity of the spring expansion sleeve (13); an inner support screw (15) is provided at the center of the tapered inner support mandrel (14); the spring expansion sleeve (13) and the tapered inner support mandrel (14) are... 4) The three components of the spring expansion sleeve (13) and the inner support screw (15) are coaxial and form an inner support structure; the top of the spring expansion sleeve (13) is higher than the top of the limiting bushing (12), and a height difference is formed between the two; the fixed plate (10) is also provided with a lateral positioning plate (20) and a lateral clamping bracket (30), the lateral positioning plate (20) and the lateral clamping bracket (30) are symmetrically arranged, the lateral positioning plate (20) is provided with a lateral positioning core rod (21), and the lateral clamping bracket (30) is provided with a lateral clamping screw (31) corresponding to the lateral positioning core rod (21).
2. The tooling fixture for machining a pulse wheel eccentric machine according to claim 1, characterized in that: The fixed plate (10) is also provided with a balance block (16), which is detachably connected to the fixed plate (10). The balance block (16) is located on the center vertical line of the line connecting the lateral positioning plate (20) and the lateral clamping bracket (30), and forms an equilateral triangle structure with the lateral positioning plate and the lateral clamping bracket.
3. The tooling fixture for machining a pulse wheel eccentric machine according to claim 1, characterized in that: The height difference between the top of the spring expansion sleeve (13) and the top of the limiting bushing (12) is the same as or slightly lower than the height of the central through hole of the pulse wheel (50).
4. The tooling fixture for eccentric machining of a pulse wheel according to claim 1, characterized in that: The fixed plate (10) and the eccentric positioning plate (11), and the eccentric positioning plate (11) and the limiting bushing (12) are connected by screws (40).