Special auxiliary equipment for mounting saddle linear rail of machine tool

Abstract

The utility model provides special auxiliary equipment for mounting a saddle linear rail of a machine tool, which relates to the technical field of machine tool manufacturing and comprises a tool body (1), a base (2), a worktable (4), a rotary table sliding plate (6), a rotary table (7), a stand column (9), a drilling spindle box (14), a tapping spindle box (15) and a spindle box body (16). Each of the drilling spindle box (14) and the tapping spindle box (15) comprises a spindle box body (16), a gear (17), a moving shaft (18) and a cutter (19), and a rotating motor (20) at the top drives the gear (17) to drive the moving shaft (18) and the cutter (19) to rotate; the thread drilling and tapping efficiency is greatly improved, the stress concentration problem generated by machining is effectively eliminated and relieved, and the stability and reliability of a whole machine tool system are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machine tool, concretely relates to a kind of auxiliary special equipment of machine tool slide saddle line rail installation. BACKGROUND

[0002] Machine tool slide saddle line rail is the key component of machine tool, and line rail usually refers to linear guide rail, which is composed of guide rail and sliding block, and slide saddle is the component installed on linear guide rail sliding block and can move linearly along guide rail.

[0003] Slide saddle provides accurate linear motion guide for the moving component of machine tool, and in numerical control lathe, the accurate motion of slide saddle can ensure that tool cuts workpiece along predetermined linear trajectory in machining process, so as to ensure machining accuracy, so the installation accuracy of line rail, as the running basis of slide saddle, is required to be higher. Firstly, the straightness of line rail installation is required to be higher. The straightness of linear guide rail is the linear deviation degree of guide rail in its length direction, and for high-precision machine tool slide saddle line rail, straightness error is generally required to be controlled within 0.01-0.03mm in full length range, because if straightness error is too large, slide saddle will be inclined in motion process, thereby affecting the machining accuracy of machine tool. Secondly, the parallelism of line rail installation is required to be higher. When machine tool has two or more linear guide rails, the parallelism between them is crucial, and parallelism error will cause slide saddle to be twisted and deformed in motion process, thereby affecting machining accuracy, and generally, parallelism error of two linear guide rails is required to be less than 0.05mm in full length range. In addition, there is also the flatness of line rail, and the installation plane of slide saddle and the installation plane of linear guide rail both have flatness requirement. For slide saddle installation plane, if flatness error is too large, slide saddle will be in poor contact with sliding block, thereby affecting motion accuracy, and generally, flatness error is required to be controlled within 0.02-0.03mm.

[0004] Because of the above requirements, when line rail on machine tool slide saddle is installed, uniform distribution of different number of threaded holes is formed on line rail mounting seat, and then line rail is fixedly installed on slide saddle by bolt. Since there are more than one type of threaded hole, according to existing process and equipment, threaded holes of the same specification are processed one by one, i.e. bottom hole drilling, thread tapping, then tool is replaced, and the process is repeated again. The overall efficiency is low, and the number of repeated processes is large, which is prone to error accumulation, stress concentration, affects machining quality, and finally affects the installation accuracy of line rail. SUMMARY

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a kind of auxiliary special equipment of machine tool slide saddle line rail installation.

[0006] The utility model provides a kind of auxiliary special equipment of machine tool saddle line rail installation, for the threaded hole processing of line rail mounting seat on saddle, it is characterized by: including bed 1 and base 2 respectively fixed on the same installation plane, wherein bed 1 is arranged in X direction, is equipped with X direction track 3 and drive mechanism, workbench 4 is installed above X direction track 3, and X direction displacement is made along X direction track 3;Base 2 is two parts arranged symmetrically, and is symmetrically installed on the both sides of bed 1 respectively;

[0007] Y direction track 5 and Y direction drive mechanism are provided above the base 2 of any side, and Y direction track 5 is above rotary table slide plate 6, and rotary table slide plate 6 makes Y direction displacement along Y direction track 5;Rotary table 7 is installed above rotary table slide plate 6, rotary shaft and rotary drive mechanism 8 are arranged in rotary table 7, column 9 is erected on rotary table 7 by rotary shaft, and under the action of rotary drive mechanism 8, column 9 body and the accessory arranged on it are rotated;Line rail 10 is arranged on the left and right sides and back of column 9, and Z direction motor 11 and screw rod 12 are installed on the top of column 9 body, to drive three Z direction saddles 13 on the left and right sides and back;Drilling spindle box 14 and tapping spindle box 15 are respectively arranged on Z direction saddle 13, wherein, including drilling spindle box 14 one, is equipped with the drilling cutter of at least two kinds of hole diameter arranged in parallel;And the other two adjacent settings are tapping spindle box 15, and are respectively equipped with a tapping cutter of different hole diameter.

[0008] Drilling spindle box 14 and tapping spindle box 15 are same in structure, and all include spindle box body 16, gear 17, movement shaft 18 and cutter 19, corresponding rotary motor 20 is arranged on the top of each spindle box, the output shaft of rotary motor 20 drives gear 17, drives one movement shaft 18 rotation, and then drives all movement shaft 18 rotation.

[0009] Each drilling spindle box 14 has 14 processing shafts 21, including 7 M8 threaded hole processing shafts and 7 M6 threaded hole processing shafts.

[0010] Each tapping spindle box 15 has 7 processing shafts 21, including 7 M8 tapping processing shafts or 7 M6 tapping processing shafts. Beneficial effects

[0011] The utility model discloses a tapping spindle box and a drilling spindle box for at least two different hole diameters are arranged, and a plurality of movement shafts and matched cutters are arranged on the tapping spindle box and the drilling spindle box, two hole diameters can be machined simultaneously when drilling, and the same hole diameter can be machined simultaneously when tapping, the thread drilling and tapping efficiency is greatly improved, the single part machining time is shortened by more than 75% than conventional machining, the machining efficiency is improved by about 5.5 times, and the machining cost and labor cost are greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the three-dimensional structure schematic diagram of the auxiliary special equipment of the utility model.

[0013] Figure 2 It is the three-dimensional structure schematic diagram of the drilling spindle box and the tapping spindle box.

[0014] Figure 3 It is Figure 2 Sectional view.

[0015] Figure 4 It is the structure schematic diagram of the slide block to be machined in the embodiment.

[0016] In the drawing, bed body 1, base 2, X direction track 3, workbench 4, Y direction track 5, rotary table slide plate 6, rotary table 7, rotary drive mechanism 8, stand 9, wire track 10, Z direction motor 11, screw rod 12, Z direction slide 13, drilling spindle box 14, tapping spindle box 15, spindle box body 16, gear 17, movement shaft 18, cutter 19, rotary motor 20, machining shaft 21, slide block 22 to be machined. DETAILED DESCRIPTION

[0017] The utility model is further explained in connection with the drawings and embodiments, and it is to be explained that the directionality words used in the following description refer to the direction in the drawings, and the drawings all adopt the simplified form, use the inaccuracy ratio, and only use to facilitate, clear and assist the purpose of explaining the embodiment of the utility model. The embodiment is only a part of the embodiment of the utility model, and is not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making the creative labor belong to the scope of the utility model protection.

[0018] The utility model provides a kind of special equipment for assisting machine tool saddle linear rail installation, the threaded hole of the area of installing linear rail on machine tool saddle is processed, as shown in Fig. Figure 1 、 2 , 3, there are two specifications of M8 and M6 threaded holes on the to-be-processed saddle 22, symmetrically distributed up and down, 39 holes on each side, 78 M8 threaded holes and 78 M6 threaded holes in total;The special equipment includes bed 1 and base 2 fixed on the same installation plane respectively, wherein the bed 1 is arranged in X direction, and is provided with X direction track 3 and driving mechanism, and workbench 4 is installed above X direction track 3 and moves in X direction along X direction track 3;The base 2 is symmetrically arranged in two parts and is symmetrically installed on both sides of the bed 1.

[0019] Y direction track 5 and Y direction driving mechanism are arranged above the base 2 on both sides, and rotary table sliding plate 6 is above Y direction track 5, which moves in Y direction along Y direction track 5;Rotary table 7 is installed above rotary table sliding plate 6, and rotary shaft and rotary driving mechanism 8 are arranged in rotary table 7, and stand 9 is arranged on rotary table 7 through rotary shaft, and under the action of rotary driving mechanism 8, the body of stand 9 and the accessories arranged thereon are driven to rotate;Linear rails are arranged on the left and right sides and back of the stand 9, and Z direction motor 11 and screw 12 are installed on the top of the body of the stand 9 to drive three Z direction saddles 13 on the left and right sides and back in total;Drilling spindle box 14 and tapping spindle box 15 are arranged on Z direction saddle 13 respectively, wherein one drilling spindle box 14 is included, and parallelly arranged drilling cutters of M8 and M6 hole diameters are installed;The other two adjacent tapping spindle boxes 15 are respectively provided with M8 and M6 tapping cutters;Drilling spindle box 14 and tapping spindle box 15 are the same in structure, and each includes spindle box body 16, gear 17, movement shaft assembly 18 and cutter, and corresponding rotary motor 20 is arranged on the top of each spindle box, the output shaft of rotary motor 20 drives driven gear 17 to drive one movement shaft to rotate, and then drives all movement shafts to rotate.

[0020] In work, the to-be-processed saddle 22 is fixed on the workbench 4 of the special equipment through clamp, and the processing surface faces upwards and is perpendicular to the processing direction;The workbench 4 of the special equipment moves, so that the two stands 9 reach the safe position, and the drilling spindle box 14 rotates to the to-be-worked state;The to-be-processed saddle 22 moves to the designated processing position along with the workbench 4, and moves to the front end of the drilling spindle box 14 and the front end of the to-be-processed saddle 22 are on the same horizontal line in X direction;The two stands 9 of the special equipment move in Y direction through rotary table sliding plate 6, so that the drilling spindle box 14 is above the to-be-processed saddle 22, and the positioning and alignment of the preset installation hole center line and contour line on the to-be-processed saddle 22 are started;

[0021] When drilling, first drill the bottom hole at the four vertex positions, that is, drill in the following order: group 1, group 7, group 3, group 5, group 2, group 6, group 4; that is, the two side drilling spindle boxes 14 simultaneously process the different diameter and parallel threaded bottom holes of group 1 at the front end of the slide, and a total of two groups of M8 and two groups of M6 threaded bottom holes are processed on both sides; the workbench 4 moves to the next processing position to process group 7 at the last end of the slide to be processed 22, and a total of two groups of M8 and two groups of M6 threaded bottom holes are processed on both sides; the workbench 4 moves to the next processing position to process group 3 at the front end of the slide to be processed 22, which is one group apart from the first processing; the same operation is performed on the rear end of the slide to be processed 22, and group 5 is processed, and so on, until all threaded bottom holes are processed, and the workbench 4 needs to move a total of 6 processing positions.

[0022] When tapping, groups 1-7 threaded bottom holes are processed in turn; the workbench 4 of the special equipment moves so that the two side columns 9 reach the safe position, the No. 1 tapping spindle box 15 provided with M8 tapping tools is rotated to the standby action state; the workbench 4 is repositioned to the processing position below the No. 1 tapping spindle box 15; the two No. 1 tapping spindle boxes 15 on both sides simultaneously tap the M8 threaded bottom holes on the outside of group 1, and a total of two groups of M8 threaded tapping are processed on both sides; the workbench 4 sequentially moves to the processing positions of groups 2-7 outside in turn, and the tapping steps are repeated until all M8 threaded tapping is processed, and the workbench 4 needs to move a total of 6 processing positions;

[0023] The workbench 4 of the special equipment moves so that the two side columns 9 reach the safe position, the No. 2 tapping spindle box 15 provided with M6 tapping tools is rotated to the standby action state; the workbench 4 is repositioned to the processing position below the No. 2 tapping spindle box 15; the two No. 2 tapping spindle boxes 15 on both sides simultaneously tap the M6 threaded bottom holes of group 1, and a total of two groups of M6 threaded tapping are processed on both sides; the workbench 4 sequentially moves to the processing positions of groups 2-7 M6 threaded bottom holes in turn, and the tapping steps are repeated until all M6 threaded tapping is processed, and the workbench 4 needs to move a total of 6 processing positions; the workbench 4 of the special equipment moves so that the two side columns 9 reach the safe position, and the processing is completed.

[0024] After all drilling and tapping are completed, comprehensive stress relief post-processing is performed; the entire slide is subjected to stress relief annealing treatment.

[0025] When machining by using the prior art, 78 M8 threaded holes Φ6.8 are first machined in sequence, which takes 681.52s; then 78 M6 threaded holes Φ5.2 are machined in sequence, which takes 499s; then 78 M8 threaded tapping is performed, which takes 553.6s; finally, 78 M6 threaded tapping is performed, which takes 553.6s. The total machining time of the threaded holes of the part is 2287.72s, i.e. 38.12min. By using the application, 7 holes on one side and 14 holes on the other side can be simultaneously machined, and the total machining time of all the threaded holes is 349.12s, i.e. 5.8min. The machining efficiency is increased by about 5.5 times. According to the monthly order of 1000 units of the company, about 32000min, i.e. 533h of machining time can be saved each month.

Claims

1. A machine tool saddle linear rail mounting auxiliary dedicated device for machining mounting holes in a linear rail mounting seat on a saddle, characterized by: It comprises a bed body (1) and a base (2) fixed on the same installation plane respectively, wherein the bed body (1) is arranged in X direction, the upper surface of which is provided with an X direction rail (3) and a driving mechanism, a workbench (4) is installed above the X direction rail (3) and moves along the X direction rail (3) in X direction; the base (2) is symmetrically arranged in two parts and is symmetrically installed on both sides of the bed body (1); A Y direction rail (5) and a Y direction driving mechanism are arranged above the base (2) on either side, above the Y direction rail (5) is a rotary table slide plate (6) which moves along the Y direction rail (5) in Y direction; a rotary table (7) is installed above the rotary table slide plate (6), a rotating shaft and a rotating driving mechanism (8) are arranged in the rotary table (7), a stand column (9) is erected on the rotary table (7) through the rotating shaft, under the action of the rotating driving mechanism (8), the stand column (9) and the accessories arranged thereon are driven to rotate; a wire rail (10) is arranged on the left and right sides and the back of the stand column (9), a Z direction motor (11) and a screw rod (12) are installed on the top of the stand column (9) to drive three Z direction slide saddles (13) on the left and right sides and the back; a drilling main shaft box (14) and a tapping main shaft box (15) are arranged on the Z direction slide saddles (13) respectively, wherein, one drilling main shaft box (14) is included, at least two kinds of drilling tools with different hole diameters are arranged in parallel on the drilling main shaft box (14); the other two adjacent tapping main shaft boxes (15) are respectively provided with tapping tools with different hole diameters.

2. A machine tool saddle rail mounted auxiliary dedicated device according to claim 1, characterized in that, The drilling main shaft box (14) and the tapping main shaft box (15) have the same structure, both of which comprise a main shaft box body (16), a gear (17), a moving shaft (18) and a tool (19), a corresponding rotating motor (20) is arranged on the top of the drilling main shaft box (14) and the tapping main shaft box (15), the output shaft of the rotating motor (20) drives the gear (17) to drive one of the moving shafts (18) to rotate, thereby driving all the moving shafts (18) to rotate.

3. A machine tool saddle rail mounted auxiliary dedicated device according to claim 1 or 2, characterized in that, Each drilling main shaft box (14) has 14 machining shafts (21), including 7 M8 threaded hole machining shafts and 7 M6 threaded hole machining shafts.

4. A machine tool saddle linear rail mounted auxiliary dedicated device according to claim 1 or 2, characterized in that, Each tapping main shaft box (15) has 7 machining shafts (21), including 7 M8 tapping machining shafts or 7 M6 tapping machining shafts.

Images