Crankshaft clearance-free machining tooling

Abstract

The present invention relates to the technical field of textile equipment, and specifically discloses a crankshaft gapless processing tooling, wherein the first and second clamping templates are respectively arranged on the inner sides of the first and second eccentric templates, the first clamping template is sleeved with a first gapless sleeve at the axis center, the crankshaft synchronous shaft connecting end is sleeved in the first gapless sleeve, a flat key is installed in the keyway, and the outer end of the inner wall of the first gapless sleeve is provided with a slot that is slidably engaged with the flat key, the first clamping template is sleeved with a first top screw along a radial thread, the first gapless sleeve is provided with a through hole corresponding to the inner end of the first top screw, the second clamping template is sleeved with a second gapless sleeve at the axis center, the other end of the crankshaft is sleeved in the second gapless sleeve, the second clamping template is sleeved with a second top screw along a radial thread, the second gapless sleeve is provided with a through hole corresponding to the second top screw, a nut is threadedly sleeved at the outer side of the crankshaft threaded end, and a through hole for accommodating the nut is provided in the center of the second eccentric template; the problem of poor precision when processing the crankshaft is solved.

Description

Technical Field

[0001] The invention relates to the technical field of textile equipment, in particular to a crankshaft gapless processing tool. Background Art

[0002] The twin crankshafts in a loom are connected by synchronized shafts for operation. To ensure smooth operation, extend the life of each component, and meet the demands of producing high-quality fabrics, crankshaft machining requires high precision. Currently, crankshaft machining typically begins with fine machining of the crankshaft's throw, followed by straight milling of the keyway onto a master template. During machining, to minimize deviations during operation, the center of the keyway must be aligned with the highest point of the throw. However, current machining processes struggle to meet these crankshaft design requirements. Summary of the Invention

[0003] The present invention aims to solve the problem of poor precision in machining a crankshaft in the prior art and designs a crankshaft gapless machining tool.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a crankshaft gapless processing tool, comprising a crankshaft, a synchronous shaft connecting end of the crankshaft is provided with a keyway, and further comprising a first eccentric template, a second eccentric template and a first clamping template and a second clamping template arranged in pairs, the first clamping template and the second clamping template are respectively arranged on the inner sides of the first eccentric template and the second eccentric template, a first gapless sleeve is sleeved at the axis center of the first clamping template, the synchronous shaft connecting end of the crankshaft is sleeved in the inner cavity of the first gapless sleeve, a flat key is installed in the keyway, and the outer end of the inner wall of the first gapless sleeve is provided with a keyway corresponding to the first eccentric template and the second eccentric template. The flat key is axially slidably engaged with the matching slot, the first clamp template is radially threadedly sleeved with a first top screw, the first gapless sleeve is provided with a through hole at the inner end corresponding to the first top screw, the second clamp template is sleeved with a second gapless sleeve at the axis center, the other end of the crankshaft is sleeved in the inner cavity of the second gapless sleeve, the second clamp template is radially threadedly sleeved with a second top screw, the second gapless sleeve is provided with a through hole at the inner end corresponding to the second top screw, the threaded end of the crankshaft is located outside the second gapless sleeve and is threadedly sleeved with a nut, and the center of the second eccentric template is provided with a through hole to accommodate the nut.

[0005] Preferably, the first gapless sleeve includes a first outer sleeve and a first inner sleeve that are fitted into each other, the inner cavity of the first outer sleeve and the outer wall of the first inner sleeve are respectively in the shape of a truncated cone, the card slot is arranged on the inner wall of the first inner sleeve, and the first outer sleeve and the first inner sleeve are respectively provided with an outer through hole and an inner through hole corresponding to the inner end of the first top screw.

[0006] Preferably, the second gapless sleeve includes a second outer sleeve and a second inner sleeve that are socketed and matched with each other, the inner cavity of the second outer sleeve and the outer wall of the second inner sleeve are respectively in the shape of a truncated cone, and the second outer sleeve and the second inner sleeve are respectively provided with an outer through hole two and an inner through hole two corresponding to the inner end of the second top screw.

[0007] Preferably, the card slot is directly opposite to the inner end of the first inner perforation.

[0008] Preferably, the outer diameter of the nut is larger than the outer diameter of the outer end of the second inner sleeve.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] When processing a crankshaft, the crankshaft gapless processing tool disclosed in the present invention facilitates milling of the keyway first, then fixation and positioning of the crankshaft, and then grinding of the crankshaft bend, thereby greatly improving the processing accuracy of the crankshaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the main structure of the present invention as a whole;

[0012] Figure 2 Schematic diagram of the three-dimensional structure of the first gapless sleeve of the present invention;

[0013] Figure 3 It is a schematic diagram of the three-dimensional structure of the second gapless sleeve of the present invention.

[0014] In the figure: 1-crankshaft; 11-keyway;

[0015] 2-first eccentric template;

[0016] 3-second eccentric template; 31-through hole;

[0017] 4-first clamp template; 41-first top screw;

[0018] 5-second clamp template; 51-second top screw;

[0019] 6-Flat key;

[0020] 7-first gapless sleeve; 71-first outer sleeve; 711-outer perforation 1; 72-first inner sleeve; 721-slot; 722-inner perforation 1;

[0021] 8-second gapless sleeve; 81-second outer sleeve; 811-outer perforation 2; 82-second inner sleeve; 821-inner perforation 2;

[0022] 9-Nut. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-3 The present invention provides a technical solution, a crankshaft gapless processing tool, comprising a crankshaft 1, a synchronous shaft connecting end of the crankshaft 1 is provided with a keyway 11, and further comprising a first eccentric template 2, a second eccentric template 3 and a first clamping template 4 and a second clamping template 5 arranged in pairs, the first clamping template 4 and the second clamping template 5 are respectively arranged on the inner sides of the first eccentric template 2 and the second eccentric template 3, the axis center of the first clamping template 4 is sleeved with a first gapless sleeve 7, the synchronous shaft connecting end of the crankshaft 1 is sleeved in the inner cavity of the first gapless sleeve 7, a flat key 6 is installed in the keyway 11, and the outer end of the inner wall of the first gapless sleeve 7 is provided with a keyway corresponding to the flat key. 6 is axially slidably engaged with the matching card slot 721, the first clamp template 4 is radially threaded with a first top screw 41, the first gapless sleeve 7 is provided with a through hole at the inner end corresponding to the first top screw 41, the second clamp template 5 is provided with a second gapless sleeve 8 at the axis center, the other end of the crankshaft 1 is sleeved in the inner cavity of the second gapless sleeve 8, the second clamp template 5 is radially threaded with a second top screw 51, the second gapless sleeve 8 is provided with a through hole at the inner end corresponding to the second top screw 51, the threaded end of the crankshaft 1 is located outside the second gapless sleeve 8 and is threaded with a nut 9, and the center of the second eccentric template 3 is provided with a through hole 31 for accommodating the nut 9.

[0025] In this embodiment, the first gapless sleeve 7 includes a first outer sleeve 71 and a first inner sleeve 72 that are socketed and matched with each other. The inner cavity of the first outer sleeve 71 and the outer wall of the first inner sleeve 72 are respectively in the shape of a truncated cone. The card groove 721 is arranged on the inner wall of the first inner sleeve 72. The first outer sleeve 71 and the first inner sleeve 72 are respectively provided with an outer through hole 711 and an inner through hole 722 at the inner end corresponding to the first top screw 41.

[0026] In this embodiment, the second gapless sleeve 8 includes a second outer sleeve 81 and a second inner sleeve 82 that are socketed and matched with each other. The inner cavity of the second outer sleeve 81 and the outer wall of the second inner sleeve 82 are respectively in the shape of a cone. The second outer sleeve 81 and the second inner sleeve 82 are respectively provided with an outer through hole 811 and an inner through hole 821 at the inner end corresponding to the second top screw 51.

[0027] Among them, the walls of the first outer sleeve 71, the first inner sleeve 72, the second outer sleeve 81 and the second inner sleeve 82 are respectively provided with through seams along the axial direction, and the outer through hole 1 711, the inner through hole 1 722, the outer through hole 2 811 and the inner through hole 2 821 are respectively elliptical holes.

[0028] In this embodiment, the latching slot 721 is aligned with the inner end of the first inner through hole 722 .

[0029] In this embodiment, the outer diameter of the nut 9 is larger than the outer diameter of the outer end of the second inner sleeve 82 .

[0030] Working principle: When processing the crankshaft 1, first mill the keyway 11 at the end connecting the synchronous shaft; then, the first inner sleeve 72 and the first outer sleeve 71 are sequentially mounted on the end of the crankshaft 1, and the flat key 6 is placed in the keyway 11, and then the first inner sleeve 72 and the first outer sleeve 71 are moved toward the outer sleeve so that the slot 721 is engaged with the flat key 6, and then the end of the crankshaft 1 mounted with the first inner sleeve 72 and the first outer sleeve 71 is inserted into the first clamp template 4; the other end of the crankshaft 1 is sequentially mounted with the second inner sleeve 82 and the second outer sleeve 81, and then the threaded end is threaded with the nut 9, and then the corresponding end of the second outer sleeve 81 is inserted into the second clamp template 5; install and tighten the first top screw 41 and the second top screw 51, and the first eccentric template 2 and the second eccentric template 3 spin the first clamp template 4 and the second clamp template 5 from both sides to achieve fixed positioning of the crankshaft 1, and then perform operations such as grinding on the crankshaft to achieve the effect of reducing processing errors.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A crankshaft clearance-free machining tool, comprising a crankshaft (1), wherein a synchronous shaft connecting end of the crankshaft (1) is provided with a keyway (11), and characterized in that: The invention also includes a first eccentric template (2), a second eccentric template (3) and a first clamping template (4) and a second clamping template (5) arranged in pairs, wherein the first clamping template (4) and the second clamping template (5) are respectively arranged on the inner sides of the first eccentric template (2) and the second eccentric template (3), and a first gapless sleeve (7) is sleeved on the axis of the first clamping template (4). The synchronous shaft connecting end of the crankshaft (1) is sleeved on the inner cavity of the first gapless sleeve (7), and a flat key (6) is installed in the keyway (11). The outer end of the inner wall of the first gapless sleeve (7) is provided with a slot (721) that is matched with the flat key (6) in an axial sliding manner. The first clamping template (4) is sleeved on the inner side of the first eccentric template (2) and the second eccentric template (3). A first top screw (41) is sleeved on the radial thread, a through hole is provided at the inner end of the first gapless sleeve (7) corresponding to the first top screw (41), a second gapless sleeve (8) is sleeved on the axis of the second clamping template (5), the other end of the crankshaft (1) is sleeved on the inner cavity of the second gapless sleeve (8), the second clamping template (5) is sleeved on the radial thread, a through hole is provided at the inner end of the second gapless sleeve (8) corresponding to the second top screw (51), a nut (9) is sleeved on the threaded end of the crankshaft (1) located outside the second gapless sleeve (8), and a through hole (31) for accommodating the nut (9) is provided at the center of the second eccentric template (3).

2. The crankshaft gapless processing tool according to claim 1, characterized in that: The first gapless sleeve (7) includes a first outer sleeve (71) and a first inner sleeve (72) that are fitted together. The inner cavity of the first outer sleeve (71) and the outer wall of the first inner sleeve (72) are both in the shape of a truncated cone. The slot (721) is arranged on the inner wall of the first inner sleeve (72). The first outer sleeve (71) and the first inner sleeve (72) are respectively provided with an outer through hole (711) and an inner through hole (722) corresponding to the inner end of the first top screw (41).

3. The crankshaft gapless processing tool according to claim 2, characterized in that: The second gapless sleeve (8) includes a second outer sleeve (81) and a second inner sleeve (82) that are fitted together. The inner cavity of the second outer sleeve (81) and the outer wall of the second inner sleeve (82) are both in the shape of a truncated cone. The second outer sleeve (81) and the second inner sleeve (82) are respectively provided with an outer through hole (811) and an inner through hole (821) corresponding to the inner end of the second top screw (51).

4. The crankshaft clearance-free machining tool according to claim 2, characterized in that: The slot (721) is aligned with the inner end of the first inner through hole (722).

5. The crankshaft gapless machining tool according to claim 3, characterized in that: The outer diameter of the nut (9) is greater than the outer diameter of the outer end of the second inner sleeve (82).

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