Precise tool setting mechanism with double tool turrets

Abstract

The utility model relates to a double-tool-tower precise tool setting mechanism. The problem that in the prior art, when a tool turret sets tools, the pressing degree is not uniform enough, and the machining quality of workpieces is affected is solved. The output ends of the tool turret bases are provided with tool discs, the bottoms of the tool turret bases are provided with sliding adjusting assemblies, clamping structures are arranged between the tool turret bases and the tool discs, an active adjusting assembly used for driving the tool turret bases to slide is arranged between the two tool turret bases, and the active adjusting assembly is provided with a lifting type pressing device; and a positioning cross frame for positioning a milling cutter on the cutter head is arranged on the lifting type pressing device. The tool setting device has the advantages that the consistency of tightness during tool setting can be ensured, the uniformity of the milling size precision of workpieces in the same batch is ensured, and the machining quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a double-turret precision tool setting mechanism. Background Art

[0002] The dual-spindle machine tools currently on the market are mainly designed to improve production efficiency. The two spindles are fixed and the tool specifications are the same, so they can complete double the work in the same time. However, when using a dual-spindle machine tool to process two identical parts at the same time, the tool setting accuracy of the machine tool is required to be high, and the existing dual-spindle machine tools have large tool setting errors, which affects the quality of part processing. The tool setting error mainly includes the following two aspects: first, the axial tool setting error caused by the different clamping depths of the two spindles to the parts and the different clamping depths of the two tool holders to the tools; second, the radial tool setting error caused by the difference in the center distance between the two tool holders and the center distance between the two spindles. In addition, the existing dual-spindle turrets do not have a uniform clamping degree during tool setting, which can easily lead to different milling sizes of the same batch of workpieces when milling workpieces, affecting the workpiece processing quality.

[0003] In order to solve the deficiencies of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a double-turret fine-tuning tool setting device and a double-spindle machine tool [CN201911142098.3], which includes a slide, a first platform, a second platform, a first fine-tuning mechanism and a second fine-tuning mechanism. The slide is arranged on the machine tool bed, and the machine tool includes a first spindle and a second spindle; the first fine-tuning mechanism is arranged on the slide to drive the first platform to slide axially along the first spindle, and the second fine-tuning mechanism is arranged on the second platform to drive the second platform to slide radially along the first spindle.

[0004] The above scheme solves the problem of error proneness in tool alignment of the dual-spindle turret in the prior art to a certain extent, but the scheme still has many shortcomings, for example: the clamping degree of the dual-spindle turret is not uniform enough when aligning the tool, which easily leads to different milling sizes of the same batch of workpieces when milling workpieces, affecting the workpiece processing quality. Summary of the invention

[0005] The utility model aims to provide a double turret precision tool setting mechanism in view of the above problems.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a double-turret precision tool setting mechanism, including a symmetrically arranged turret seat, a tool disc is provided at the output end of the turret seat, a sliding adjustment component is provided at the bottom of the turret seat, a clamping structure is provided between the turret seat and the tool disc, and an active adjustment component for driving the turret seat to slide is provided between the two turret seats, a lifting and clamping device is provided on the active adjustment component, and a positioning cross frame for positioning the milling tool on the tool disc is provided on the lifting and clamping device.

[0007] In the above-mentioned double-turret precision tool setting mechanism, the sliding adjustment component includes a transverse slide arranged at the bottom of the turret seat, and the transverse slide is provided with transverse adjustment rails arranged parallel to each other, and the transverse adjustment rails are connected to the turret seat through an upper connecting slider.

[0008] In the above-mentioned double-turret precision tool setting mechanism, a longitudinal slide is provided at the bottom of the transverse slide, and a plurality of longitudinal adjustment rails arranged parallel to each other are provided on the longitudinal slide, and the longitudinal adjustment rails are connected to the transverse slide through a lower connecting slide.

[0009] In the above-mentioned double-turret precision tool setting mechanism, an adjusting cylinder is provided at one end of the longitudinal slide, and the output end of the adjusting cylinder is connected to one side of the transverse slide and provides a driving force for the sliding of the transverse slide on the longitudinal slide.

[0010] In the above-mentioned double-turret precision tool setting mechanism, the clamping structure includes an assembly base plate arranged on one side of the transverse slide, and a rotating positioning seat is provided on both sides of the assembly base plate. A top pressure cylinder is rotatably provided on the rotating positioning seat, and a clamping hoop is provided at the output end of the top pressure cylinder.

[0011] In the above-mentioned double-turret precision tool setting mechanism, cylinder positioning seats are arranged between the rotating positioning seats, and the cylinder positioning seats are respectively provided with angle adjustment cylinders which are arranged horizontally and act on the corresponding top pressure cylinders.

[0012] In the above-mentioned double-turret precision tool setting mechanism, a polygonal positioning chuck which rotates synchronously with the output shaft is provided on the output shaft between the turret seat and the cutter disc, and the circumferential outer wall of the polygonal positioning chuck is arranged corresponding to the clamping hoop.

[0013] In the above-mentioned double-turret precision tool setting mechanism, the active adjustment component includes a positioning adjustment seat, and sliding adjustment cylinders are provided on both sides of the positioning adjustment seat. The sliding adjustment cylinders are connected to the corresponding turret seats, and the bottom of the positioning adjustment seat is connected to the lateral adjustment slide rail through a fixed block.

[0014] In the above-mentioned double-turret precision tool setting mechanism, the lifting and clamping device includes a lifting connection frame arranged on the upper end of the positioning and adjusting seat, the bottom of the lifting connection frame is connected to the positioning and adjusting seat through a lifting rod, and a propulsion cylinder is passed through the lifting connection frame.

[0015] In the above-mentioned double-turret precision tool setting mechanism, the output end of the propulsion cylinder is connected to the above-mentioned positioning cross frame, both ends of the positioning cross frame extend toward the corresponding tool disc, and the bottom of the positioning cross frame is corresponding to the milling tool set on the tool disc.

[0016] Compared with the existing technology, the advantages of the utility model are: easy operation, the uniformity of the cutter disc position can be ensured when aligning the tool, and the clamping structure is used to ensure that the milling tool and the workpiece can be tightly fitted. Secondly, the lifting and clamping device can ensure that the milling tool can fit the milling workpiece tightly during the milling process, thereby ensuring that the accuracy of the milling dimensions of the workpieces in the same batch remains uniform, thereby improving the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the sliding adjustment component in the utility model;

[0019] Figure 3 It is a schematic diagram of the clamping structure in the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the lifting type pressing device in the utility model;

[0021] Figure 5 It is a cross-sectional view of the lifting type clamping device in the utility model;

[0022] In the figure, the turret seat 1, the tool disc 11, the sliding adjustment component 2, the transverse slide 21, the transverse adjustment slide rail 22, the longitudinal slide 23, the longitudinal adjustment slide rail 24, the adjustment cylinder 25, the clamping structure 3, the assembly base plate 31, the rotating positioning seat 32, the top pressure cylinder 33, the clamping hoop 34, the cylinder positioning seat 35, the angle adjustment cylinder 36, the polygonal positioning chuck 37, the active adjustment component 4, the positioning adjustment seat 41, the fixed block 42, the sliding adjustment cylinder 43, the lifting clamping device 5, the lifting connecting frame 51, the lifting rod 52, the propulsion cylinder 53, and the positioning cross frame 54. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1-5 As shown, a double-turret precision tool setting mechanism includes a symmetrically arranged turret seat 1, a tool disc 11 is provided at the output end of the turret seat 1, a sliding adjustment component 2 is provided at the bottom of the turret seat 1, a clamping structure 3 is provided between the turret seat 1 and the tool disc 11, and an active adjustment component 4 for driving the turret seat 1 to slide is provided between the two turret seats 1, a lifting clamping device 5 is provided on the active adjustment component 4, and a positioning cross frame 54 for positioning the milling tool on the tool disc 11 is provided on the lifting clamping device 5.

[0025] The sliding adjustment assembly 2 includes a transverse slide 21 arranged at the bottom of the turret seat 1, and the transverse slide 21 is provided with transverse adjustment rails 22 arranged parallel to each other. The transverse adjustment rails 22 are connected to the turret seat 1 through an upper connecting slider.

[0026] It can be seen that a longitudinal slide 23 is provided at the bottom of the transverse slide 21 , and a plurality of longitudinal adjustment rails 24 arranged parallel to each other are provided on the longitudinal slide 23 , and the longitudinal adjustment rails 24 are connected to the transverse slide 21 via a lower connecting slider.

[0027] Furthermore, an adjusting cylinder 25 is provided at one end of the longitudinal slide 23 , and an output end of the adjusting cylinder 25 is connected to one side of the transverse slide 21 and provides a driving force for the transverse slide 21 to slide on the longitudinal slide 23 .

[0028] The longitudinal slide 23 and the transverse slide 21 are provided to move the tool turret 1 longitudinally and horizontally, adjust the tool setting position, and ensure the tool setting accuracy.

[0029] Specifically, the clamping structure 3 includes an assembly base plate 31 arranged on one side of the transverse slide plate 21, and a rotating positioning seat 32 is arranged on both sides of the assembly base plate 31. A top pressure cylinder 33 is rotatably arranged on the rotating positioning seat 32, and a clamping hoop 34 is arranged at the output end of the top pressure cylinder 33.

[0030] Furthermore, cylinder positioning seats 35 are provided between the rotating positioning seats 32 , and angle adjustment cylinders 36 which are horizontally arranged and act on the corresponding pressing cylinders 33 are respectively provided on the cylinder positioning seats 35 .

[0031] The clamping structure 3 fixes the cutter head 11 by positioning the polygonal positioning chuck 37, thereby avoiding position deviation when milling the workpiece and improving the milling tightness.

[0032] More specifically, a polygonal positioning chuck 37 that rotates synchronously with the output shaft is provided on the output shaft between the turret seat 1 and the cutter disc 11 , and the circumferential outer wall of the polygonal positioning chuck 37 is arranged corresponding to the clamping hoop 34 .

[0033] The clamping hoop 34 here has flexible structures on both sides and a rigid structure in the middle, and can clamp polygonal positioning chucks 37 of different specifications.

[0034] Obviously, the active adjustment component 4 includes a positioning adjustment seat 41, and sliding adjustment cylinders 43 are provided on both sides of the positioning adjustment seat 41. The sliding adjustment cylinders 43 are connected to the corresponding turret seat 1, and the bottom of the positioning adjustment seat 41 is connected to the lateral adjustment slide rail 22 through a fixed block 42.

[0035] The active adjustment component 4 is mainly used to adjust the lateral tool alignment position of the turret seat 1, thereby adjusting the position of the tool disc 11.

[0036] In detail, the lifting and clamping device 5 includes a lifting connection frame 51 arranged on the upper end of the positioning and adjusting seat 41, the bottom of the lifting and connecting frame 51 is connected to the positioning and adjusting seat 41 through a lifting rod 52, and a propulsion cylinder 53 is passed through the lifting and connecting frame 51.

[0037] Preferably, the output end of the propulsion cylinder 53 is connected to the above-mentioned positioning cross frame 54 , both ends of the positioning cross frame 54 are extended toward the corresponding cutter disc 11 , and the bottom of the positioning cross frame 54 is corresponding to the milling tool arranged on the cutter disc 11 .

[0038] According to the height position of the milling tool, the positioning cross frame 54 is pressed against the milling tool by the lifting and lowering of the lifting rod 52 and the driving of the propulsion cylinder 53, so as to ensure the tightness of the milling tool when aligning the tool.

[0039] To sum up, the principle of this embodiment is: when aligning the tool, the horizontal slide 21 is pushed to move by the adjusting cylinder 25 to determine the longitudinal position of the tool disc 11. Secondly, the turret seat 1 is driven to move horizontally by the sliding adjusting cylinder 43 to determine the horizontal position of the tool disc 11. Finally, the tool disc is positioned by the top pressure cylinder 33, and the milling tool is pressed and fitted by the lifting clamping device 5 to achieve the tightness of the tool discs 11 on both sides when aligning the tools.

[0040] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0041] Although the present invention uses more terms such as turret seat 1, cutter disc 11, sliding adjustment assembly 2, transverse slide plate 21, transverse adjustment slide rail 22, longitudinal slide plate 23, longitudinal adjustment slide rail 24, adjustment cylinder 25, clamping structure 3, assembly base plate 31, rotating positioning seat 32, top pressure cylinder 33, clamping hoop 34, cylinder positioning seat 35, angle adjustment cylinder 36, polygonal positioning chuck 37, active adjustment assembly 4, positioning adjustment seat 41, fixed block 42, sliding adjustment cylinder 43, lifting clamping device 5, lifting connecting frame 51, lifting rod 52, propulsion cylinder 53, positioning cross frame 54, etc., it does not exclude the possibility of using other terms. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A double turret precision tool setting mechanism, comprising a symmetrically arranged turret seat (1), wherein a tool disc (11) is provided at the output end of the turret seat (1), characterized in that: A sliding adjustment component (2) is provided at the bottom of the turret seat (1), a clamping structure (3) is provided between the turret seat (1) and the cutter disc (11), and an active adjustment component (4) for driving the turret seat (1) to slide is provided between the two turret seats (1), a lifting clamping device (5) is provided on the active adjustment component (4), and a positioning cross frame (54) for positioning the milling tool on the cutter disc (11) is provided on the lifting clamping device (5).

2. A double turret precision tool setting mechanism according to claim 1, characterized in that: The sliding adjustment assembly (2) comprises a transverse slide (21) arranged at the bottom of the turret seat (1), the transverse slide (21) is provided with transverse adjustment slide rails (22) arranged parallel to each other, and the transverse adjustment slide rails (22) are connected to the turret seat (1) via an upper connecting slide block.

3. A double turret precision tool setting mechanism according to claim 2, characterized in that: A longitudinal slide plate (23) is provided at the bottom of the transverse slide plate (21), and a plurality of longitudinal adjustment slide rails (24) arranged parallel to each other are provided on the longitudinal slide plate (23), and the longitudinal adjustment slide rails (24) are connected to the transverse slide plate (21) via a lower connecting slide block.

4. A double turret precision tool setting mechanism according to claim 3, characterized in that: An adjusting cylinder (25) is provided at one end of the longitudinal slide (23), and an output end of the adjusting cylinder (25) is connected to one side of the transverse slide (21) and provides a driving force for the transverse slide (21) to slide on the longitudinal slide (23).

5. The double turret precision tool setting mechanism according to claim 2, characterized in that: The clamping structure (3) comprises an assembly base plate (31) arranged on one side of the transverse slide plate (21), and a rotating positioning seat (32) is arranged on both sides of the assembly base plate (31), a top pressure cylinder (33) is rotatably arranged on the rotating positioning seat (32), and a clamping hoop (34) is arranged at the output end of the top pressure cylinder (33).

6. A double turret precision tool setting mechanism according to claim 5, characterized in that: A cylinder positioning seat (35) is arranged between the rotating positioning seats (32), and each of the cylinder positioning seats (35) is provided with an angle adjustment cylinder (36) which is arranged horizontally and acts on the corresponding top pressure cylinder (33).

7. A double turret precision tool setting mechanism according to claim 6, characterized in that: A polygonal positioning chuck (37) which rotates synchronously with the output shaft is arranged on the output shaft between the turret seat (1) and the cutter disc (11), and the circumferential outer wall of the polygonal positioning chuck (37) is arranged correspondingly to the clamping hoop (34).

8. The double turret precision tool setting mechanism according to claim 1, characterized in that: The active adjustment component (4) comprises a positioning adjustment seat (41), and sliding adjustment cylinders (43) are provided on both sides of the positioning adjustment seat (41). The sliding adjustment cylinders (43) are connected to the corresponding turret seat (1), and the bottom of the positioning adjustment seat (41) is connected to the transverse adjustment slide rail (22) through a fixed block (42).

9. A double turret precision tool setting mechanism according to claim 8, characterized in that: The lifting type pressing device (5) comprises a lifting connection frame (51) arranged on the upper end of the positioning and adjusting seat (41), the bottom of the lifting connection frame (51) is connected to the positioning and adjusting seat (41) through a lifting rod (52), and a propulsion cylinder (53) is installed on the lifting connection frame (51).

10. A double turret precision tool setting mechanism according to claim 9, characterized in that: The output end of the propulsion cylinder (53) is connected to the above-mentioned positioning cross frame (54), both ends of the positioning cross frame (54) are extended toward the corresponding cutter disc (11), and the bottom of the positioning cross frame (54) is arranged corresponding to the milling tool arranged on the cutter disc (11).

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