CN102145407A - Movable clamp fixing frame for processing matching seam allowance for axle box upper body - Google Patents

Abstract

The invention discloses a movable clamp fixing frame for processing a matching seam allowance for an axle box upper body. The movable clamp fixing frame consists of two high vertical shafts, a low vertical column, and a fixing bottom plate; all vertical shafts are fixed on the fixing bottom plate; the distribution positions of three vertical shafts correspond to three positioning and installation holes on a movable bottom plate; a thread hole is formed in the center of each vertical shaft; the upper plane of the movable bottom plate of a movable clamp is placed on three vertical shafts and is fixed by positioning and fastening screws; after the movable clamp is fixed and mounted, the matching seam allowance of a workpiece to be processed faces upward to ensure that the movable bottom plate can be accurately mounted on the fixing frame, so that the workpiece can be conveniently processed by a processing center; and the actual using verifies that the movable clamp fixing frame is matched with the movable clamp, the certified product rate of the workpiece on the processing center during procedure processing reaches 99.8 percent, and compared with that of the prior art, the clamping and adjustment time of the movable clamp fixing frame is shortened by 105 to 120 seconds.

Description

A kind of axle box upper body cooperates the floating holder fixed mount of seam processing

Technical field:

The present invention relates to the compound anchor clamps that the axle box upper body cooperates seam processing, relate in particular to floating holder fixed mount wherein.

Background technology:

On motor-car, the motor car bogie axle box is similar to the connecting rod on the diesel engine, it is made up of axle box upper body and axle box lower body, the axle box lower body is equivalent to gonnecting rod body, the axle box upper body is equivalent to connecting rod cap, be formed by connecting by butt joint seam and securing member between the two, described axle box upper body such as Fig. 1, shown in Figure 2, it comprises cartridge housing 11, semicircle dead eye 12, engaging lug seat 13 and cooperation seam 14, cooperate seam 14 to be arranged between the engaging lug seat 13, cooperating the length dimension L of seam 14 is 250 millimeters, the diameter of semicircle dead eye 12 is 240 millimeters, cooperate the minimum wall thickness (MINI W.) of seam 14 to have only 5 millimeters, engaging lug seat 13 is 46 millimeters from cooperating the seam 14 length dimension L1 that stretches out, and the width dimensions L2 of engaging lug seat 13 is 168 millimeters, is provided with two connecting holes 15 on engaging lug seat 13, cooperating the following faying face A of seam is 62 millimeters to the height difference H between the lower plane B of engaging lug seat, and tolerance is 0～-0.03 millimeter.

In order to overcome the deficiency that existing processing technology exists, the applicant explores following mechanical processing technique route:

1. be benchmark is found two connecting holes 15 earlier accurately at the upper surface of engaging lug seat C center with the following faying face A that cooperates seam, the center preprocessing at two connecting holes 15 goes out fabrication hole then, and mills out location pit face D; So just realized the unification of casting technique benchmark and mechanical processing technique benchmark, can make the seam wall thickness allowance of semicircle dead eye 12 both sides even, also can make the allowance of semicircle dead eye 12 more even, for follow-up semicircle dead eye 12 roughing, cooperation seam 14 Milling Process provide reliable and stable location benchmark;

2. fabrication hole and the location pit face D with four connecting holes 15 is benchmark, and roughing semicircle dead eye 12 for follow-up cooperation seam 14 Milling Process provide reliable and stable benchmark, guarantees that semicircle dead eye 12 both sides seam wall thickness are even;

3. semicircle dead eye 12 and the connecting hole 15 with roughing is benchmark, finishes the processing of the lower plane B of the following faying face A that cooperates seam 14 and cooperate seam, engaging lug seat with clamping of machining center, and connecting hole 15 is carried out the processing of shape type;

4. will cooperate seam 14 and cooperate the following faying face A of seam to cooperate butt joint with the axle box lower body, by four connecting holes, 15 usefulness bolts both mounts are integral, carry out bore hole processing then, because the allowance of semicircle dead eye 12 is less, and good evenness, therefore can cancel heavy boring, directly carry out the integrated processing of half right boring and right boring.

In this mechanical processing technique, the 3rd step, employed anchor clamps were emphasis, also were difficult points, and those skilled in the art can't obtain without creating work and testing.

The applicant has designed and has a kind ofly satisfied above-mentioned technological requirement well by floating holder, the compound anchor clamps of transferring clamping tool and fixed mount to form, and wherein fixed mount is that fixedly floating holder carries out the basis of machining.

Summary of the invention:

The purpose of this invention is to provide the floating holder fixed mount that a kind of axle box upper body cooperates seam processing.

Described axle box upper body cooperates the floating holder fixed mount of seam processing, it is made up of two high columns, short column and fixed base plate, two high columns and a short column all are fixed on the fixed base plate, the distributing position of three root posts is corresponding with three location and installation holes on the movable floor, center at every root post all is provided with screwed hole, the requirement for height of three root posts is: after the floating holder fixed installation, cooperation seam on the workpiece to be processed up, the housing screw end face has the gap between the fixed base plate.

The installation requirement of floating holder 2 in the present invention is:

After workpiece accurately installs and fixes in floating holder by accent clamping tool, again floating holder is stood up, two mounting planes on the movable floor and mid-plane are set aside on three root posts on the fixed mount, and fix with the location trip bolt, after the floating holder fixed installation, cooperation seam on the workpiece to be processed up, the housing screw end face has the gap between the fixed base plate.Like this, the workpiece work in-process in the heart, as long as clamping just can be finished the Milling Process to the lower plane of the following faying face that cooperates seam, cooperation seam, engaging lug seat successively, can also carry out the processing of shape type to connecting hole, guarantee to cooperate seam even, can not produce asymmetric situation to the wall thickness of semicircle dead eye both sides, use checking through reality, adopt this sleeve clamp, the workpiece work in-process operation processing percentage of A-class goods in the heart reaches 99.8%, and clamping is adjusted the time ratio prior art and shortened 105～120 seconds.

Description of drawings:

Fig. 1, Fig. 2 are workpiece to be machined (axle box upper body) topology example figure;

Fig. 2 is the upward view of Fig. 1;

Fig. 3, Fig. 4 are floating holder and the structural representation of transferring the clamping tool to cooperate;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5, Fig. 6 are the annexation schematic diagram of floating holder and fixed mount;

Fig. 6 is the vertical view of Fig. 5;

Fig. 7～Figure 10 is the structural representation of floating holder;

Wherein, Fig. 7 is a front view, and Fig. 8 is an E-E cutaway view among Fig. 7;

Fig. 9 is the vertical view (dismounting housing screw) of Fig. 7, and Figure 10 is a F-F cutaway view among Fig. 9;

Figure 11, Figure 12 are for transferring the structural representation of clamping tool, and Figure 12 is the vertical view of Figure 11;

Figure 13, Figure 14 are the structural representation of fixed mount, and Figure 14 is the vertical view of Figure 13;

Among the figure: the 1-workpiece; The 2-floating holder; 3-transfers the clamping tool; 4-movable floor locating bar; 5-workpiece location mandril; The 6-fixed mount; 7-locatees trip bolt; The 11-cartridge housing; 12-semicircle dead eye; 13-engaging lug seat; 14-cooperates seam; The 15-connecting hole; A-cooperates the following faying face of seam; The lower plane of B-engaging lug seat; The upper surface of C-engaging lug seat; D-location pit face; The 21-movable floor; The 211-inclined-plane; The 212-mid-plane; The 213-mounting plane; 214-location and installation hole; 22-cambered surface positioning clamping device; 221-sphere alignment pin; The 222-clamping arm; The 223-housing screw; 31-transfers the dress base plate; 32-portable plate set pin sleeve; 33-workpiece set pin sleeve; The high column of 61-; The short column of 62-; The 63-fixed base plate.

The specific embodiment:

Introduce the specific embodiment of the present invention in detail below in conjunction with accompanying drawing:

Described axle box upper body cooperates the floating holder fixed mount of seam processing, as Figure 13, shown in Figure 14, it is by two high columns 61, short column 62 and fixed base plate 63 are formed, two high columns 61 and a short column 62 all are fixed on the fixed base plate 63, the distributing position of three root posts is corresponding with three location and installation holes 214 on the movable floor 21, center at every root post all is provided with screwed hole, the requirement for height of three root posts is: after floating holder 2 fixed installations, cooperation seam 14 on the workpiece to be processed 1 up, housing screw 223 end faces have the gap between fixed base plate 63.

Described floating holder 2, as Fig. 7～shown in Figure 10, it comprises movable floor 21 and three cambered surface positioning clamping devices 22, on movable floor 21, be provided with two inclined-planes 211, mid-plane 212, two mounting planes 213 and three location and installation holes 214, two inclined-planes 211 are arranged on the left side of movable floor 21 symmetrically, two mounting planes 213 are arranged on the right side of movable floor 21 symmetrically, on two mounting planes 213, respectively be provided with a location and installation hole 214, on the mid-plane 212 of the left side of movable floor 21 section, be provided with a location and installation hole 214, two cambered surface positioning clamping devices 22 are arranged on two inclined-planes 211 of left side section symmetrically with respect to the width centreline of movable floor 21, a cambered surface positioning clamping device 22 is arranged on the mid-plane 212 of movable floor 21 right sections, described cambered surface positioning clamping device 22 is by sphere alignment pin 221, " 7 " font clamping arm 222 and housing screw 223 are formed, sphere alignment pin 221 is fixed on the movable floor 21, wherein, two sphere alignment pins 221 are fixed on two inclined-planes 211 of left end on the movable floor 21, a sphere alignment pin 221 is fixed on the right-hand member of mid-plane 212 on the movable floor 21, being provided with on the bore area of position to semicircle dead eye 12 two ends of living workpiece 1 of three sphere alignment pins 221, wherein, housing screw 223 spinnings are on the same straight line with sphere alignment pin 221 on " 7 " font clamping arm 222.

Workpiece 1 will accurately install and fix on floating holder 2 must be by transferring clamping tool 3, movable floor locating bar 4 and workpiece location mandril 5, as Fig. 3, shown in Figure 4, described accent clamping tool 3 is as Figure 11, shown in Figure 12, it comprises transfers dress base plate 31, three portable plate set pin sleeves 32 and two workpiece set pin sleeves 33, three portable plate set pin sleeves 32 and two workpiece set pin sleeves 33 all are fixed on to be transferred on the dress base plate 31, three portable plate set pin sleeves 32 that the position is set is corresponding with three location and installation holes 214 on the movable floor 21, two workpiece set pin sleeves 33 that the position is set is corresponding with the connecting hole 15 on the workpiece 1, two movable floor locating bars 4 are sleeved in the location and installation hole 214 and portable plate set pin sleeve 32 on the movable floor 21, realize floating holder 2 and transfer accurately location of clamping tool 3, two workpiece location mandrils 5 insert respectively in the connecting hole 15 and workpiece set pin sleeve 33 on the workpiece 1, realization workpiece 1 is accurately located on floating holder 2, and workpiece 1 accurately screws housing screw 223 behind the location.

Instructions for use of the present invention such as Fig. 5, shown in Figure 6, by transferring clamping tool 3 that workpiece 1 is is accurately installed and fixed in floating holder 2, again floating holder 2 is stood up, two mounting planes 213 on the movable floor 21 and mid-plane 212 are set aside on three root posts 61,62 on the fixed mount, and it is fixing with location trip bolt 7, after floating holder 2 fixed installation, the cooperation seam 14 on the workpiece to be processed 1 up, housing screw 223 end faces have the gap between fixed base plate 63.Like this, workpiece 1 work in-process in the heart, as long as clamping just can be finished the Milling Process to the lower plane B of the following faying face A that cooperates seam 14, cooperation seam, engaging lug seat successively, can also carry out the processing of shape type to connecting hole 15, guarantee to cooperate seam 14 even to the wall thickness of semicircle dead eye 12 both sides, can not produce asymmetric situation, use checking through reality, adopt this sleeve clamp, the workpiece 1 work in-process operation processing percentage of A-class goods in the heart reaches 99.8%, and clamping is adjusted time ratio prior art shortening 105 seconds～120 seconds simultaneously.

Claims (1)

1. an axle box upper body cooperates the floating holder fixed mount of seam processing, it is characterized in that: it is by two high columns (61), a short column (62) and fixed base plate (63) are formed, two high columns (61) and a short column (62) all are fixed on the fixed base plate (63), the distributing position of three root posts is corresponding with three the location and installation holes (214) on the movable floor (21), center at every root post all is provided with screwed hole, the requirement for height of three root posts is: after floating holder (2) fixed installation, cooperation seam (14) on the workpiece to be processed (1) up, housing screw (223) end face has the gap between fixed base plate (63).

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