Adjusting ring clamp

Abstract

The utility model relates to an adjusting ring clamp which comprises a locking mandrel connected with a hydraulic pull rod of a numerical control lathe, a mandrel check ring, a check ring fixing bolt, a mandrel lubricating sleeve, a locking pressing plate, a gland, an adjusting ring positioning disc, an I-shaped main body and a connecting flange. An I-shaped main body with a positioning pin and an auxiliary positioning pin is fixed on a main shaft of the numerical control lathe through a connecting flange and a fixing bolt, an adjusting ring positioning disc is fixed on the I-shaped main body through a fastening bolt, and a mandrel lubricating sleeve is fixed on the axis of the I-shaped main body through a jackscrew on the positioning disc. The locking mandrel is installed in the center of the mandrel lubricating sleeve and is in sliding fit with the mandrel lubricating sleeve, the fixed mandrel check ring is fixed to the locking mandrel through the check ring fixing bolt, and lubricating grease is injected between the lubricating sleeves matched with the fixed mandrel check ring through oil holes in the check ring fixing bolt to achieve the lubricating effect. The locking pressing plate positions and fixes the adjusting ring through a flange on the adjusting ring positioning disc, and the locking pressing plate with the diameter larger than that of a gland center hole is driven to fix the adjusting ring to the clamp through the locking movement of the locking mandrel.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to an adjusting ring clamp. Background Art

[0002] At present, the clamping ring parts of lathes are usually clamped in a centering manner, relying on the inner hole or outer circle of the workpiece for positioning. For example, when a three-jaw chuck or a mandrel is used to clamp the adjusting ring for processing, the tightness of the clamping workpiece has a huge impact on the processing quality and requires a high level of strength control ability from the operator. A large clamping force may cause the adjusting ring to deform. After the processing is completed, it is released to return to its natural state, and the adjusting ring becomes scrap due to excessive deformation. A small clamping force may easily cause the workpiece to slip and become scrap, resulting in unstable processing quality and a low pass rate.

[0003] Therefore, it is necessary to develop a new adjusting ring fixture to solve the above problems. Summary of the invention

[0004] In view of the above-mentioned existing deficiencies, the utility model aims to provide a clamp which can effectively fix the adjustment ring during the processing, prevent the adjustment ring from sliding or deforming, and ensure the processing quality of the adjustment ring.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model provides an adjusting ring clamp, comprising a hydraulic locking mandrel, a mandrel retaining ring, a retaining ring fixing bolt, a mandrel lubricating sleeve, a locking pressure plate, a pressure cover, an adjusting ring positioning disk, an "I"-shaped main body and a connecting flange, wherein the hydraulic locking mandrel fixes the mandrel retaining ring as a whole through a fixing bolt; a mandrel lubricating sleeve is sleeved on the hydraulic locking mandrel; the locking pressure plate is placed on the hydraulic locking mandrel, and the locking pressure plate is located between the adjusting positioning disk and the pressure cover and the mandrel retaining ring, and when the locking mandrel moves to the left, the mandrel retaining ring drives the locking pressure plate to move to the left and drives the pressure cover to move to the left together, Press the workpiece; the spindle lubrication sleeve is embedded in the center hole of the workpiece positioning disk, and the spindle lubrication sleeve is fixed on the workpiece positioning disk by the positioning screws screwed on the positioning disk; the workpiece positioning disk is fixed to the "I"-shaped body by three evenly distributed bolts; the outer circle of the large diameter of the positioning disk positions the adjustment ring, and the outer circle of the small diameter and the positioning screws position the pressure cover; the "I"-shaped body is fixed to the connecting flange of the lathe by evenly distributed bolts; the pressure cover is placed on the right end of the workpiece positioning disk with the workpiece installed, and the adjustment ring to be processed is placed between the left end of the pressure cover and the "I"-shaped body;

[0007] A plurality of main body fixing bolts are evenly distributed on the left circular plate in the “I”-shaped main body, and the “I”-shaped main body is detachably connected to the connecting flange through the main body fixing bolts.

[0008] Preferably, the locking plate is provided with a U-shaped bayonet which matches the outer diameter of the hydraulic locking mandrel, so as to facilitate the locking plate to be engaged with the hydraulic locking mandrel.

[0009] Preferably, a positioning and locking threaded hole is provided on the small diameter outer circle at the right end of the workpiece positioning plate according to the angle design, and three bolt holes are evenly distributed on the large diameter flange surface at the left end according to needs, which can be detachably fixed to the "I"-shaped body through locking bolts.

[0010] Preferably, three evenly distributed clamping and fixing pins and three evenly distributed elastic auxiliary support pin holes are installed on the right circular plate in the "I"-shaped body, and the right end of the clamping and fixing pin extends outward with a consistent height, which is greater than the groove depth of the adjusting ring, so that the right end of the clamping and fixing pin can be engaged in any groove in the left end of the workpiece for clamping and fixing the workpiece.

[0011] Preferably, three evenly distributed elastic auxiliary support pins are installed on the left circular plate in the "I"-shaped body, and a spring is installed at the bottom of each auxiliary support pin. The support pin can slide along the matching hole reserved at the right end of the body. Three evenly distributed threaded holes are set on the left end flange of the body, and the position of the elastic support pin is adjusted and controlled by screws. The length of the elastic auxiliary support pin is 1 mm longer than the clamping positioning pin.

[0012] Preferably, six gland pressing pins are evenly distributed on the left end of the gland.

[0013] Preferably, the connecting flange is evenly distributed with a plurality of locking bolts for connecting with the machine tool spindle.

[0014] The beneficial effects of the utility model are:

[0015] The fixture uses an adjusting ring locating plate for center positioning, and the three fixed locating pins on the "I"-shaped main body and three elastic auxiliary locating pins correspond to the six clamping pins on the pressure cover at the right end of the adjusting ring to clamp the adjusting ring and fix it; the locating screws on the workpiece locating plate fix the lubrication sleeve and position the pressure cover at the same time to ensure that the three clamping pins on the pressure cover correspond to the three fixed pins on the main body, thereby ensuring the processing quality of the adjusting ring and effectively avoiding the problem of deformation of the adjusting ring due to the clamping force and excessive processing accuracy in the natural state after processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 Structural schematic diagram of an adjusting ring fixture provided by an embodiment of the present utility model;

[0018] Figure 2 is Figure 1 exploded view of;

[0019] Figure 3 is Figure 1 front view of;

[0020] Figure 4 is Figure 3 partial structure cross-sectional view of;

[0021] Figure 5 Front view and cross-sectional view A-A of the hydraulic locking mandrel;

[0022] Figure 6 Structural diagram of the retaining ring fixing bolt;

[0023] Figure 7 Front view and cross-sectional view C-C of the mandrel lubricating sleeve;

[0024] Figure 8 Structural diagram of the locking pressure plate;

[0025] Fig. 9 Structural diagram of the gland;

[0026] Fig.10 Structural diagram of the workpiece to be machined;

[0027] Fig.11 Front view and cross-sectional view B-B of the workpiece positioning disk;

[0028] Fig.12 Stereogram and right view of the "I"-shaped main body;

[0029] Fig.13 Stereogram and right view of the connecting flange.

[0030] Explanation of reference numerals:

[0031] Hydraulic locking mandrel 1, mandrel retaining ring 2, retaining ring fixing bolt 3, mandrel lubricating sleeve 4, locking pressure plate 5, gland 6, workpiece to be machined 7, workpiece positioning disk 8, "I"-shaped main body 9, connecting flange 10, locking positioning screw 11, main body fixing bolt 12, positioning disk locking bolt 13, clamping fixing pin 14, auxiliary support pin 15, spring 16, adjusting screw 17, gland pressing pin 18, locking bolt 19. Detailed implementation manners

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Embodiment 1, as Figures 1 to 13 As shown, an adjusting ring fixture comprises a hydraulic locking mandrel 1, a mandrel retaining ring 2, a retaining ring fixing bolt 3, a mandrel lubricating sleeve 4, a locking pressure plate 5, a pressure cover 6, a processing piece 7, a workpiece positioning disk 8, an "I"-shaped main body 9 and a connecting flange 10, wherein the hydraulic locking mandrel 1 is provided with a mandrel retaining ring 2 through the retaining ring fixing bolt 3; the hydraulic locking mandrel 1 is sleeved with a mandrel lubricating sleeve 4; the locking pressure plate 5 is provided on the hydraulic locking mandrel 1, and the locking pressure plate 5 is located between the mandrel lubricating sleeve 4 and the mandrel retaining ring 2; the mandrel lubricating sleeve 4 is sleeved with a workpiece positioning disk 8 and an "I"-shaped main body 9 in sequence from right to left, and the right end of the workpiece positioning disk 8 is detachably connected to the right end of the mandrel lubricating sleeve 4 through a locking positioning screw 11; the pressure cover 6 is sleeved on the right end of the workpiece positioning disk 8, and the processing piece 7 is provided between the left end of the pressure cover 6 and the right end face of the left end of the workpiece positioning disk 8;

[0034] Furthermore, Figure 1 and Figure 3 , Figure 4 As shown, a plurality of main body fixing bolts 12 are evenly distributed on the left circular plate of the “I”-shaped main body 9 , and the “I”-shaped main body 9 is detachably connected to the connecting flange 10 via the main body fixing bolts 11 .

[0035] Further, in an embodiment, Figure 8 As shown, the locking plate 5 is provided with a U-shaped bayonet which matches the outer diameter of the hydraulic locking mandrel 1. The width of the U-shaped bayonet is larger than the diameter of the hydraulic locking mandrel 1 and smaller than the diameter of the mandrel retaining ring, so as to facilitate the locking plate to be engaged on the hydraulic locking mandrel.

[0036] Furthermore, a plurality of positioning plate locking bolts 13 are evenly distributed on the right end of the workpiece positioning plate 8 , and the workpiece positioning plate 8 is detachably connected to the “I”-shaped main body 9 via the positioning plate locking bolts 13 .

[0037] Furthermore, several clamping pins 14 are evenly distributed on the right circular plate in the "I"-shaped main body 9, and the right end of the clamping pin 14 extends outward so that the right end of the clamping pin 14 is engaged in any tooth groove in the left end of the workpiece 7 to limit the movement of the workpiece.

[0038] Furthermore, several auxiliary support pins 15 are evenly distributed on the left circular plate in the "I"-shaped main body 9, and a spring 16 is sleeved on the left rod body in each auxiliary support pin 15. An adjustment screw 17 that cooperates with the threaded hole on the left circular plate in the "I"-shaped main body 9 is provided at the left end of each auxiliary support pin 15. The right rod body in each auxiliary support pin 15 passes through the right circular plate in the "I"-shaped main body 9 to the corresponding tooth groove in the left end of the workpiece 7.

[0039] Furthermore, a plurality of gland clamping pins 18 are evenly distributed on the left end of the gland 6 .

[0040] Furthermore, a plurality of locking bolts 19 are evenly distributed on the connecting flange 10 .

[0041] The working principle of the adjusting ring fixture is as follows: loosen the locking mandrel, remove the locking pressure plate, then remove the pressure cover, place the adjusting ring on the workpiece positioning disk, then place the pressure cover on the workpiece positioning disk, place the locking pressure plate on the locking mandrel, press the workpiece positioning disk to lock, the locking mandrel moves to the left with the mandrel retaining ring, drives the locking pressure plate and the pressure cover to press and fix the adjusting ring to the left, and starts the processing program;

[0042] After processing, press the workpiece positioning plate to loosen it, the locking mandrel moves to the right with the mandrel retaining ring, the locking pressure plate and the pressure cover are also loosened to the right, remove the locking pressure plate, then remove the pressure cover, and remove the processed adjusting ring.

[0043] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An adjusting ring fixture, characterized in that: It includes a hydraulic locking mandrel, a mandrel retaining ring, a retaining ring fixing bolt, a mandrel lubricating sleeve, a locking pressure plate, a pressure cover, a processing part, a workpiece positioning disk, an "I"-shaped main body and a connecting flange. The hydraulic locking mandrel is provided with a mandrel retaining ring through the retaining ring fixing bolt; the hydraulic locking mandrel is sleeved with a mandrel lubricating sleeve; the locking pressure plate is arranged on the hydraulic locking mandrel, and the locking pressure plate is located between the mandrel lubricating sleeve and the mandrel retaining ring; the mandrel lubricating sleeve is sleeved with a workpiece positioning disk and an "I"-shaped main body from right to left in sequence, and the right end of the workpiece positioning disk is detachably connected to the right end of the mandrel lubricating sleeve through a locking positioning screw; the pressure cover is sleeved on the right end of the workpiece positioning disk, and a processing part is arranged between the left end of the pressure cover and the right end face of the left end of the workpiece positioning disk; A plurality of main body fixing bolts are evenly distributed on the left circular plate in the "I"-shaped main body, and the "I"-shaped main body is detachably connected to the connecting flange through the main body fixing bolts.

2. An adjusting ring fixture as claimed in claim 1, characterized in that: The locking plate is provided with a U-shaped bayonet which matches the outer diameter of the hydraulic locking mandrel.

3. An adjusting ring fixture as claimed in claim 1, characterized in that: A plurality of positioning plate locking bolts are evenly distributed on the right end of the workpiece positioning plate, and the workpiece positioning plate is detachably connected to the "I"-shaped main body through the positioning plate locking bolts.

4. An adjusting ring fixture as claimed in claim 1, characterized in that: Several clamping and fixing pins are evenly distributed on the right circular plate in the "I"-shaped main body, and the right end of the clamping and fixing pin extends outward so that the right end of the clamping and fixing pin is engaged in any tooth groove in the left end of the workpiece.

5. The adjusting ring fixture according to claim 1, characterized in that: Several auxiliary support pins are evenly distributed on the left circular plate in the "I"-shaped main body, and a spring is sleeved on the left rod body in each auxiliary support pin. An adjustment screw is provided at the left end of each auxiliary support pin, which cooperates with the threaded hole on the left circular plate in the "I"-shaped main body. The right rod body in each auxiliary support pin passes through the right circular plate in the "I"-shaped main body to the corresponding tooth groove in the left end of the workpiece.

6. An adjusting ring fixture as claimed in claim 1, characterized in that: A plurality of gland pressing pins are evenly distributed on the left end of the gland.

7. An adjusting ring fixture as claimed in claim 1, characterized in that: A plurality of locking bolts are evenly distributed on the connecting flange.

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