Gantry type double-head inverted vehicle

Abstract

The utility model discloses a gantry type double-head handstand trolley which comprises a T-shaped base, two sets of stand columns which are symmetrical left and right are arranged on the rear transverse body portion of the T-shaped base, a beam assembly is arranged on the two sets of stand columns in a crossing mode, and two sets of sliding base assemblies which can move left and right in a reciprocating mode are movably arranged on the beam assembly. The two groups of sliding seat assembling bodies are respectively provided with spindle box assembling bodies capable of reciprocating up and down in a one-to-one correspondence manner; a workpiece transfer mechanism and two sets of tool aprons are arranged on the front vertical body portion of the T-shaped base, the two sets of tool aprons are located on the left side and the right side of the workpiece transfer mechanism respectively, and a concentric-square-shaped chip groove is formed between the workpiece transfer mechanism and the two sets of tool aprons. By flexibly designing a double-shaft double-machining-position structure, stable and efficient automatic production is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vertical lathe technical field, specifically point to a kind of double-end inverted car of gantry type. BACKGROUND

[0002] The existing inverted lathe generally includes single spindle, single tool tower and mechanism, the workpiece is installed on the spindle box, the tool is fixed on the tool holder structure on the base, the workpiece is self-rotated on the spindle box under the control of the rotating mechanism to collide with the tool on the base to realize cutting, and the time consumed for processing one workpiece includes clamping, processing and disassembly. But the existing vertical lathe can only clamp the workpiece in the opposite direction after the workpiece is finished processing, and it needs to turn around to process the other side. The clamping of the workpiece is time-consuming and laborious, which makes it take longer time to complete the processing of one workpiece, lengthens the average processing time of the workpiece and leads to low processing efficiency.

[0003] Therefore, the present case proposes a double-end inverted car of gantry type after in-depth research on the above problems. SUMMARY

[0004] The utility model aims at providing a double-end inverted car of gantry type, which is designed flexibly to realize stable and efficient automatic production.

[0005] To achieve the above purpose, the solution of the utility model is as follows:

[0006] A double-end inverted car of gantry type includes a T-shaped base, the rear horizontal body part of the T-shaped base is provided with two groups of vertical columns symmetrically on the left and right, a crossbeam assembly is provided on the two groups of vertical columns, two groups of slide seat assemblies movable left and right are movably provided on the crossbeam assembly, and a main shaft box assembly movable up and down is provided on each of the two groups of slide seat assemblies.

[0007] The crossbeam assembly includes a crossbeam, two groups of linear guides and two groups of slide seat driving mechanisms. The crossbeam is in L-shaped structure, the two groups of slide seat driving mechanisms are accommodated in the inside space of the L-shaped structure, and the two groups of linear guides are arranged parallel to each other and are arranged on the top and side of the L-shaped structure respectively. The two groups of slide seat assemblies are in inverted L-shaped structure matched and locked on the crossbeam, the two groups of slide seat assemblies are one-to-one corresponding transmission connection with the two groups of slide seat driving mechanisms, and each group of slide seat assemblies is provided with top sliding blocks and side sliding blocks matched and installed with the two groups of linear guides.

[0008] The two groups of slide seat driving mechanisms are arranged in horizontal extension parallel to each other in the inside space of the crossbeam, and the two groups are arranged in up-down staggered manner.

[0009] The slide driving mechanism comprises a ball screw, a shaft coupling and a servo motor, the ball screw is in driving connection with the servo motor through the shaft coupling.

[0010] The slide assembly comprises a slide, two groups of slide linear rails and a spindle driving mechanism; the two groups of slide linear rails are vertically arranged on the side assembly surface of the slide; the spindle box assembly is movably arranged on the side assembly surface of the slide through the two groups of slide linear rails and the two groups of spindle sliding blocks; the spindle driving mechanism is in driving connection with the spindle box assembly to drive the spindle box assembly to move up and down.

[0011] The spindle box assembly comprises a spindle box, a spindle, a pull rod, a hydraulic chuck and a rotary oil cylinder; the spindle is arranged through the spindle box; the pull rod is arranged through the spindle; the rotary oil cylinder and the hydraulic chuck are respectively in driving connection with the upper end and the lower end of the pull rod; the pull rod is driven by the rotary oil cylinder to drive the hydraulic chuck to clamp or release.

[0012] The two sides of the front vertical body part of the T-shaped base are respectively provided with a feeding area and a finished product bin.

[0013] After the above scheme is adopted, the new type has the beneficial effects of the prior art, which are as follows:

[0014] Firstly, the new type adopts the combined structure of the T-shaped base and the beam assembly, which not only provides reasonable and effective installation and operation space for the double spindle box assembly, the double tool seat and the chip removal function, but also greatly improves the bearing rigidity of the whole machine, ensuring the stability and reliability of the whole machining stroke.

[0015] Secondly, on the basis of designing the double columns on the T-shaped base, the new type further adopts the positive and negative L-shaped structure matching design between the beam assembly and the slide assembly, and is matched with the high and low asymmetric double linear guides, so that the lengthening of the beam is beneficial to the double machining installation, and the possible shaking of the lengthened beam is effectively prevented, the torsional force during machining is effectively reduced, and the machining precision is improved.

[0016] Thirdly, when the double spindle double machining position of the new type is operated, one group of spindle box assemblies is responsible for feeding the raw workpiece to the corresponding machining position, and after the machining is completed, the semi-finished workpiece is sent to the automatic process operation of the workpiece transfer mechanism; after the automatic turning operation of the semi-finished workpiece in the workpiece transfer mechanism, the other group of spindle box assemblies is responsible for clamping the semi-finished workpiece from the workpiece transfer mechanism to the corresponding other machining position, and after the machining is completed, the finished workpiece is sent out for the automatic process operation of discharging. Thus, the double spindle double machining positions are independently operated, and the two can be synchronously and orderly operated to realize the automatic operation from feeding to discharging, so that stable and efficient machining is realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the inverted vehicle of the present new type;

[0018] Figure 2 is a structural view of the T-shaped base of the present new type;

[0019] Figure 3 is a structural view of the crossbeam assembly of the present new type;

[0020] Figure 4 is a structural view of the crossbeam assembly and the slide assembly of the present new type;

[0021] Figure 5 is a side view of Figure 4 ;

[0022] Figure 6 is a structural view of the spindle box assembly of the present new type.

[0023] Explanation of reference numerals

[0024] T-shaped base 1, rear cross body part 11, front vertical body part 12, stand 13, transfer area 14, back-shaped chip removal groove 15, two groups of tool holders 2;

[0025] Crossbeam assembly 3, crossbeam 31, two groups of linear guide rails 32, two groups of slide driving mechanisms 33, ball screw 331, coupling 332, servo motor 333;

[0026] Two groups of slide assemblies 4, slide 41, top slide 411, side slide 412, two groups of slide linear rails 42, spindle driving mechanism 43, ball screw 431, coupling 432, servo motor 433;

[0027] Two groups of spindle box assemblies 5, spindle box 51, spindle 52, pull rod 53, hydraulic chuck 54, rotary oil cylinder 55, workpiece transfer mechanism 6, feeding area 7, finished product bin 8. DETAILED DESCRIPTION

[0028] The present case will be further described in detail in combination with the drawings and the specific embodiments.

[0029] The present case relates to a double-head gantry inverted vehicle, as shown in Figures 1-6 , mainly comprising a T-shaped base 1, two groups of tool holders 2, a crossbeam assembly 3, two groups of slide assemblies 4, and two groups of spindle box assemblies 5.

[0030] As shown in Figure 2 , the T-shaped base 1 is divided into a rear cross body part 11 and a front vertical body part 12 according to a T-shaped structure. The rear cross body part 11 is provided with two groups of left and right symmetrical stands 13 at both ends, which are used for the crossbeam assembly 3 to be arranged across, and the two groups of stands 13 are designed in the shape of a big foot, which can effectively make the machine table front-leaning to improve the stability of the stand.

[0031] The two groups of slide assemblies 4 are independently arranged, and both are assembled on the beam assembly 3 and independently move left and right on the beam assembly 3. The two groups of spindle box assemblies 5 are respectively and correspondingly arranged on the two groups of slide assemblies 4, and the spindle box assemblies 5 move up and down on the slide assemblies 4.

[0032] The center of the front vertical body part 12 of the T-shaped base 1 is provided with a transfer area 14 for the workpiece transfer mechanism 6. The two groups of tool holders 2 are arranged on the front vertical body part 12 and are respectively located on the left and right sides of the workpiece transfer mechanism 6. The front vertical body part 12 forms a meandering chip removal groove 15 between the workpiece transfer mechanism 6 and the two groups of tool holders 2, which is beneficial to collect the chips in all directions. The meandering chip removal groove 15 is preferably in a funnel structure, which is more conducive to the collection of chips. The upper positions of the corresponding meandering chip removal grooves 15 beside the two groups of tool holders 2 form two machining positions.

[0033] The double-head inverted gantry machine tool of the present application adopts a T-shaped base 1 and double columns 13 to form a gantry structure with the beam assembly 3, which not only provides reasonable and effective installation and operation space for the double spindle box assemblies 5, the double tool holders 2 and the chip removal function, but also greatly improves the carrying rigidity of the entire machine, ensuring the stability and reliability of the entire machining process. Figure 1 As shown in the figure, the left and right groups of spindle box assemblies 5 are respectively a first spindle box assembly and a second spindle box assembly, and the left and right groups of tool holders 2 are respectively a first tool holder and a second tool holder. When the double-spindle double-machining-position machine tool of the present application operates, the first spindle box assembly is responsible for the front-stage automatic process operation of the workpiece, i.e., feeding the raw workpiece to the corresponding first machining position, and after the machining is completed, feeding the semi-finished workpiece to the workpiece transfer mechanism 6; after the automatic turning operation of the semi-finished workpiece in the workpiece transfer mechanism 6, the second spindle box assembly is responsible for the rear-stage automatic process operation of the workpiece, i.e., clamping the semi-finished workpiece from the workpiece transfer mechanism 6 to the corresponding second machining position, and after the machining is completed, feeding the finished workpiece out for unloading. Thus, the double-spindle double-machining-position machine tool operates independently, and the two can be synchronized and orderly, realizing an entire coherent automatic operation from feeding to unloading (reducing the cost of matching automation and reducing the clamping time), which realizes stable and efficient machining.

[0034] The preferred scheme is as follows: Figures 3-5As shown, the crossbeam assembly 3 comprises a crossbeam 31, two sets of linear guides 32 and two sets of slide driving mechanisms 33. The crossbeam 31 is in L-shaped structure, the two sets of slide driving mechanisms 33 are accommodated in the inner space of the L-shaped structure, and the two sets of linear guides 32 are arranged in parallel with each other and are arranged on the top and side of the L-shaped structure respectively, so that the two sets of linear guides 32 are two sets of guides with high and low asymmetry, and the installation axes of the two sets of guides are perpendicular to each other. The two sets of slide assemblies 4 are all in inverted L-shaped structure which can be matched and locked on the crossbeam 31. Specifically, the slide assembly 4 has a slide 41 which is in inverted L-shaped structure, and the slide 41 and the crossbeam 31 are in positive and inverted L-shaped structure. In this way, on the one hand, the crossbeam 31 can be designed to be lengthened to facilitate double machining installation, and on the other hand, it also effectively prevents the problem of shaking of the lengthened crossbeam 31, effectively reduces the torsion force during machining, and improves the precision during machining. The corresponding position of the slide 41 is provided with a top slide block 411 and a side slide block 412 which are matched and installed with the two sets of linear guides 32.

[0035] The two sets of slide driving mechanisms 33 are in one-to-one corresponding transmission connection with the two sets of slide assemblies 4. Specifically, the slide driving mechanism 33 comprises a ball screw 331, a coupling 332 and a servo motor 333, and the ball screw 331 is in transmission connection with the servo motor 333 through the coupling 332. The slide 41 is provided with a slide nut (not shown in the figure) which is matched and threadedly connected with the ball screw 331. The servo motor 333 drives the ball screw 331 to rotate through the coupling 332, and under the cooperation of the slide nut and the two sets of linear guides, the two sets of slide assemblies 4 are independently left and right reciprocating.

[0036] Further, the two sets of slide driving mechanisms 33 are arranged in parallel and extend transversely in the inner space of the crossbeam 31, and the two sets are arranged in an upper and lower staggered manner. In this way, it is ensured that the two sets of slide assemblies 4 work independently, and at the same time, it is ensured that the two sets of slide assemblies 4 can be shifted to the transfer area 6 for related operations.

[0037] Preferably, as shown in Figure 4 , Figure 6 The slide assembly 4 comprises a slide 41, two sets of slide linear guides 42 and a main shaft driving mechanism 43. The two sets of slide linear guides 42 are vertically arranged on the side assembly surface of the slide 41, the main shaft box assembly 5 is movably arranged on the side assembly surface of the slide 41 through cooperation of the two sets of slide linear guides 42, and the main shaft driving mechanism 43 is in transmission connection with the main shaft box assembly 5 to drive the main shaft box assembly 5 to move up and down. The main shaft driving mechanism 43 comprises a ball screw 431, a coupling 432 and a servo motor 433, and the ball screw 431 is in transmission connection with the servo motor 433 through the coupling 432.

[0038] Preferably, as shown in Figure 6As shown, the spindle box assembly 5 includes a spindle box 51, a spindle 52, a pull rod 53, a hydraulic chuck 54 and a rotary oil cylinder 55. The spindle box 51 is provided with two sets of sliders corresponding to the two sets of slide rails 42, and is also provided with a screw nut matched with the ball screw 431, so as to realize the up-down reciprocating movement of the spindle box assembly 5 driven by the spindle driving mechanism 43. The spindle 52 is arranged in the spindle box 51, the pull rod 53 is arranged through the spindle 52, and the rotary oil cylinder 55 and the hydraulic chuck 54 are respectively connected to the upper and lower ends of the pull rod 53. The pull rod 53 is driven by the rotary oil cylinder 55 to drive the hydraulic chuck 54 to clamp and loosen. The spindle box 51 is an integral downwardly inclined structure, so that the upward force during machining is buffered, and the automation is better matched, and the machining precision is ensured.

[0039] Preferably, as Figure 1 As shown, the front vertical body part 12 of the T-shaped base 1 is provided with a feeding area 7 and a finished product warehouse 8 on both sides. During the operation of the gantry double-head inverted vehicle, the first spindle box assembly moves back and forth between the feeding area 7, the first machining position and the workpiece transfer area under the cooperation of the corresponding slide assembly, and realizes the taking and placing of the workpiece and the machining operation through the up-down movement of the first spindle box assembly and the clamping and loosening operation of the hydraulic chuck. Similarly, the second spindle box assembly moves back and forth between the workpiece transfer area, the second machining position and the finished product warehouse 8 under the cooperation of the corresponding slide assembly, and realizes the machining and taking and placing operation of the workpiece through the up-down movement of the second spindle box assembly and the clamping and loosening operation of the hydraulic chuck. Finally, each machining workpiece realizes the automatic flow machining of the feeding area 7, the first machining position, the workpiece transfer area, the second machining position and the finished product warehouse 8, and the automation can realize an automatic production and machining close to zero beat.

[0040] The above is only the preferred embodiment of the present application, and any equivalent changes and modifications made within the scope of the present application should be within the scope of the present application.

Claims

1. A gantry double-headed inverted car, characterized by: The T-shaped base is provided with two groups of columns symmetrically left and right, a cross beam assembly is arranged on the two groups of columns, two groups of slide block assemblies reciprocatingly movable left and right are movably arranged on the cross beam assembly, and the two groups of slide block assemblies are respectively and correspondingly provided with main shaft box assemblies reciprocatingly movable up and down.

2. A gantry double-headed inverted vehicle according to claim 1, characterized in that: The cross beam assembly comprises a cross beam, two groups of linear guide rails and two groups of slide block driving mechanisms; the cross beam is in L-shaped structure, the two groups of slide block driving mechanisms are accommodated in the inside space of the L-shaped structure, and the two groups of linear guide rails are arranged in parallel with each other and are arranged at the top and the side of the L-shaped structure respectively; the two groups of slide block assemblies are in inverted L-shaped structure matched and locked on the cross beam, the two groups of slide block assemblies are in one-to-one transmission connection with the two groups of slide block driving mechanisms, and each group of slide block assemblies is provided with top sliding blocks and side sliding blocks matched and installed with the two groups of linear guide rails.

3. A gantry double-headed inverted vehicle as claimed in claim 2, characterized in that: The two groups of slide block driving mechanisms are arranged in parallel with each other in the inside space of the cross beam and are arranged in up-down staggered mode.

4. A gantry double-headed inverted vehicle according to claim 2, characterized in that: The slide block driving mechanism comprises a ball screw, a coupling and a servo motor, and the ball screw is in transmission connection with the servo motor through the coupling.

5. A gantry double-inverted car according to claim 1, characterized in that: The slide block assembly comprises a slide block, two groups of slide block linear rails and a main shaft driving mechanism; the two groups of slide block linear rails are vertically arranged on the side assembly surface of the slide block in parallel, the main shaft box assembly is movably arranged on the side assembly surface of the slide block through the cooperation of the two groups of main shaft sliding blocks and the two groups of slide block linear rails, and the main shaft driving mechanism is in transmission connection with the main shaft box assembly to drive the main shaft box assembly to reciprocate up and down.

6. A gantry double-inverted car according to claim 1, characterized in that: The main shaft box assembly comprises a main shaft box, a main shaft, a pull rod, a hydraulic chuck and a rotary oil cylinder, the main shaft is arranged in the main shaft box in penetration, the pull rod is arranged in penetration of the main shaft, the rotary oil cylinder and the hydraulic chuck are respectively in transmission connection with the upper end and the lower end of the pull rod, and the pull rod is driven by the rotary oil cylinder to drive the hydraulic chuck to clamp and loosen.

7. A gantry double-headed inverted vehicle as claimed in claim 1, characterized in that: The two sides of the front vertical body part of the T-shaped base are respectively provided with a feeding area and a finished product warehouse.

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