Double-station machine tool for machining grouped pin holes

Abstract

A double-station machine tool for machining grouped pin holes belongs to the technical field of machining equipment and comprises a machine tool body, a clamp body, a feeding sliding table, a stand column body, a lifting mechanism and a spindle box, the machine tool body is of a horizontally-arranged rectangular table-shaped structure, the clamp body is arranged at one end of the upper surface of the machine tool body, and the feeding sliding table is arranged at the other end of the upper surface of the machine tool body; a vertical column body is arranged on a sliding plate of the feeding sliding table, the vertical column body reciprocates on the feeding sliding table through the sliding plate, the vertical column body is provided with a vertical column sliding plate, the vertical column sliding plate is connected with a spindle box, the upper portion of the vertical column sliding plate is connected with a lifting mechanism, and the lifting mechanism drives the vertical column sliding plate to move up and down. Two-procedure machining, expanding and reaming or drilling and reaming of grouped pin holes can be completed through one machine tool, efficiency is high, the structure is novel, investment of the machine tool in an automatic line is reduced, cost is saved, and errors caused by re-clamping during part machining are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining equipment, specifically relates to a double-station machining pin hole forming machine. BACKGROUND

[0002] At present, pin hole forming machining is carried out on a horizontal machining center or a vertical machining center, and such machine tools are single-hole single-order machining, slow in pace, and difficult to form a line, especially for large parts; furthermore, the machining of a combined machine tool can be completed by using a spindle box of a hole system machining, and two machine tools are needed to complete two-order machining.

[0003] The combined machine tool drives the spindle on the spindle box to rotate through a power box, and the cutter is vertically placed, so that the machining part needs a specific posture, and if the posture of the machining part is changed, the combined machine tool needs to increase a non-standard device for posture conversion before and after, thereby increasing the cost; the posture of the part on the machine tool needs to be determined according to the position of the hole, and in a production line, the posture of the part is not suitable for vertical machining due to conveying or previous order, and a machine tool with a vertical column that can move up and down and can also horizontally machine is needed.

[0004] (CN202591969U) discloses a machine tool capable of deep hole gun drilling, spray suction drilling and milling, which can be horizontally machined, but uses two cutters without an up-down order relationship, needs two powers to drive respectively, and in addition, the position of the feeding system is below the clamp with the part, so that the part needs to be clamped and adjusted for multiple times during machining, errors are easily generated, and the machining of pin hole forming cannot be met. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a double-station machining pin hole forming machine to solve the problems that the machining center cannot machine pin hole forming, the existing combined machine tool is limited in machining pin hole forming, non-standard devices need to be increased to cause high cost, and the part needs to be clamped and adjusted for multiple times during machining, which is prone to errors.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a double-station machining pin hole forming machine, comprising a bed, a clamping body, a feeding slide, a column body, a lifting mechanism and a spindle box, the bed is a horizontally arranged rectangular table structure, a clamping body is arranged at one end of the upper surface of the bed, and a feeding slide is arranged at the other end, a column body is arranged on the slide plate of the feeding slide, the column body moves back and forth on the feeding slide through the slide plate, the column body is provided with a column slide plate, the column slide plate is connected with the spindle box, a lifting mechanism is connected to the upper part of the column slide plate, and the lifting mechanism drives the column slide plate to move up and down.

[0007] The top of the clamp body is used for placing the part to be processed, the middle part of the part is provided with a middle groove A, and the upper part of the clamp body opposite to the feeding slide is provided with a middle groove B, the depth of the middle groove B and the middle groove A on the part is greater than the machining depth of the tool.

[0008] The bottom of the column body is connected with the sliding plate of the feeding slide, the middle part of the column body is provided with a hollow structure for avoiding the motor on the spindle box, the side opposite to the clamp body of the column body is provided with a column sliding plate, the column sliding plate is slidingly connected with the column body, the column sliding plate is provided with a waist-shaped groove for avoiding the motor on the spindle box, the waist-shaped groove on the column sliding plate is matched with the hollow structure on the column body, the top of the column sliding plate is connected with a lifting mechanism, and the side opposite to the clamp body of the column sliding plate is provided with a spindle box.

[0009] The lifting mechanism comprises a servo motor, a motor base, a support, a lead screw, a lead screw nut and a nut sleeve, the bottom of the servo motor is provided with the motor base, the bottom of the motor base is provided with the support, the support is connected with the top of the column body, the support is a trapezoidal block structure with a cavity in the inside, the main shaft of the servo motor is connected with the lead screw through the top of the motor base and the support, the lead screw nut sleeve is arranged on the lead screw and matched with the same, the nut sleeve is arranged on the lead screw nut, and the nut sleeve is connected with the upper center of the column sliding plate.

[0010] One side of the support is provided with a connecting part, the connecting part is provided with a counterweight oil cylinder, the piston rod end of the counterweight oil cylinder is provided with a connecting block, and the connecting block is connected with one end of the upper part of the column sliding plate.

[0011] The spindle box is a rectangular box structure as a whole, the connecting surface of the spindle box and the column sliding plate is provided with a motor, the motor is located in the inside of the waist-shaped groove and the hollow structure, and does not interfere with the column sliding plate and the column body, the side opposite to the clamp body of the spindle box is provided with a tool auxiliary group, the box body is provided with a gear transmission system, and the motor drives the tool auxiliary group to work through the gear transmission system in the box body.

[0012] The tool auxiliary group comprises an expanding tool, a reamer, a spindle and a quick-change connecting rod, the tool auxiliary group is two groups, corresponding to two pin holes of the part respectively, each group is provided with two spindles upward and downward, the spindles are driven to rotate synchronously through the gear transmission system in the box body, the upper spindle is used for connecting the expanding tool, and the lower spindle is used for connecting the reamer, the expanding tool and the reamer are non-standard tools, and the expanding tool and the reamer are connected to the respective spindles through the quick-change connecting rod, so as to quickly replace the tools.

[0013] The main shaft box can move up and down on the stand under the action of the stand slide plate, clamping does not need to be frequently adjusted during machining, error generation is avoided, two sequence machining of group pin holes is completed by one machine tool, machine tool investment in the automatic line is reduced, cost is saved, and production efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model.

[0015] Figure 2 It is a stand body and lifting mechanism schematic view of the utility model.

[0016] Figure 3 It is Figure 2 Another perspective view.

[0017] Figure 4 It is a main shaft box structure schematic view of the utility model.

[0018] Figure 5 It is Figure 4 Another perspective view.

[0019] Figure 6 It is a side view schematic view of the utility model.

[0020] In the drawing: 1, bed body, 2, clamping body, 201, middle groove B, 3, part, 301, middle groove A, 4, reamer, 5, quick-change connecting rod, 6, main shaft, 7, main shaft box, 8, stand slide plate, 801, waist-shaped groove, 9, connecting block, 10, support, 11, counterweight oil cylinder, 12, servo motor, 13, motor base, 14, stand body, 1401, hollow structure, 15, lead screw, 16, feed slide table, 17, lead screw nut, 18, nut sleeve, 19, reamer, 20, motor. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be described clearly and completely in combination with the drawings of the present specification, and it should be noted that the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Please refer to Figures 1-6The utility model provides a kind of double-station machine tool of processing group pin hole, including bed 1, clamping body, feed slide 16, column body 14, lifting mechanism and headstock 7, the bed 1 is horizontally arranged rectangular table structure, clamping body is provided at the upper surface of bed 1 one end, and feed slide 16 is provided at the other end thereof, the slide plate of feed slide 16 is equipped with column body 14, and the column body 14 is reciprocated on feed slide 16 by slide plate, and the column body 14 is equipped with column slide 8, and headstock 7 is connected to column slide 8, and lifting mechanism is connected to the upper portion of column slide 8, and the lifting mechanism drives column slide 8 to move up and down.The clamping body includes clamping body 2, and the clamping body 2 is rectangular block structure, and the top of clamping body 2 is used to place the part 3 to be processed, and the middle portion of part 3 is equipped with middle groove A301, and middle groove B201 is equipped at the upper portion of the side opposite to feed slide 16 of clamping body 2, and the depth of middle groove B201 and the depth of the middle groove A301 carried on part 3 are all greater than the machining depth of tool.The bottom of column body 14 is connected with the slide plate of feed slide 16, and the middle portion of column body 14 is equipped with hollow structure 1401 for avoiding motor 20 provided by headstock 7, and the side opposite to clamping body of column body 14 is equipped with column slide 8, and column slide 8 is slidably connected with column body 14, and the waist-shaped groove 801 for avoiding motor 20 provided by headstock 7 is equipped on column slide 8, and the waist-shaped groove 801 on column slide 8 cooperates with the hollow structure 1401 carried by column body 14, and the top of column slide 8 is connected with lifting mechanism, and the side opposite to clamping body of column slide 8 is equipped with headstock 7.The lifting mechanism includes servo motor 12, motor base 13, support 10, lead screw 15, lead screw nut 17 and nut sleeve 18, the bottom of servo motor 12 is equipped with motor base 13, the bottom of motor base 13 is equipped with support 10, the top of support 10 is connected with column body 14, the support 10 is trapezoidal block structure with cavity in the inside, the shaft of servo motor 12 is connected with lead screw 15 by passing through the top of motor base 13 and support 10, lead screw nut 17 is sleeved on lead screw 15 and cooperates with it, nut sleeve 18 is equipped on lead screw nut 17, and the upper center of column slide 8 is connected with nut sleeve 18;One side of support 10 is equipped with connecting part, the connecting part is equipped with counterweight oil cylinder 11, the piston rod end of counterweight oil cylinder 11 is equipped with connecting block 9, and one end of the upper portion of column slide 8 is connected with connecting block 9.The main shaft box 7 is connected with the motor 20, and the motor 20 is located in the waist-shaped groove 801 and the hollow structure 1401, and does not interfere with the column slide plate 8 and the column body 14. The main shaft box 7 is provided with a tool auxiliary group on the side opposite to the clamping body 2. The box is provided with a gear transmission system, and the motor 20 drives the tool auxiliary group to work through the gear transmission system in the box.

[0023] In the use process of the utility model,

[0024] The overall layout of the machine tool is horizontally arranged, and the bed body 1 is the mounting base of various components. When the servo motor 12 above the column body 14 is started, the screw rod nut 17 is transmitted to the screw nut 17 through the screw rod 15, the screw nut 17 is connected with the column slide plate 8 through the nut sleeve 18, and the column slide plate 8 is driven to move up and down.

[0025] Under the influence of the dead weight of the main shaft box 7 and the column slide plate 8, when the column slide plate 8 rises, the brake torque of the servo motor 12 is relied on, and a large load is generated on the servo motor 12, which affects the precision of the servo motor 12. The counterweight oil cylinder 11 is installed on the connecting part of the support 10, the support 10 is installed above the column body 14, the piston rod of the counterweight oil cylinder 11 is connected with the column slide plate 8 through the connecting block 9, and when the column slide plate 8 moves up and down, the piston rod of the counterweight oil cylinder 11 moves up and down with the column slide plate 8, the dead weight of the main shaft box 7 and the column slide plate 8 is balanced, the servo motor 12 can accurately stop at the set position by using the brake torque, the first sequence hole position is avoided, the displacement processing of the second sequence is avoided, and the machining precision of the hole is affected.

[0026] The column slide plate 8 can be driven to move up and down on the column body 14 by the lifting mechanism, and the moving stroke of the column slide plate 8 on the column body 14 is the distance between the two groups of tools, the expansion tool 4 and the reamer 19, on the main shaft box 7.

[0027] The hollow structure 1401 on the column body 14 and the waist-shaped groove 801 on the column slide plate 8 are used to avoid the motor 20 of the main shaft box 7, the internal space of the hollow structure 1401 meets the needs of the up-down stroke of the main shaft box 7, and interference with the motor 20 of the main shaft box 7 is avoided during operation.

[0028] The motor 20 of the spindle box 7 is located at the back of the spindle box 7, the tool is connected with the spindle 6 through the quick-change connecting rod 5, the motor 20 transmits power to each tool through the gear transmission system in the spindle box 7, the specific number of the tool is arranged on the spindle box 7 according to the requirement of the part 3 to be machined, and the part 3 is machined into a group of pin holes;

[0029] The motor 20 transmits the required rotating speed and correct rotating direction and torque of the spindle 6 through the gear transmission system in the spindle box 7;

[0030] The power of the spindle box 7 comes from the motor 20 behind the box body, the sum of the torque and power of each tool, that is, the power of the motor 20, is calculated according to the type and number of the tool arranged on the spindle box 7, and the tool is driven by the motor 20.

[0031] The action cycle of the machine tool is that when the column slide plate 8 is located below the column body 14 as the first station, the feeding slide table 16 advances, a reaming sequence of part 3 machining is completed, and the feeding slide table 16 retreats; when the spindle box 7 is driven by the servo motor 12 to move up to the second station with the column slide plate 8, the feeding slide table 16 advances again, the lower two reamers 19 of the two groups of tools work, a reaming sequence is completed, the feeding slide table 16 retreats, and the column slide plate 8 is driven by the servo motor 12 to descend to the first station, so that the whole cycle of the machine tool is completed, that is, the machining of two pin holes of the part 3 is completed;

[0032] When the reamer 4 works, the two reamers are respectively hidden in the middle groove B201 of the clamping body 2 and the middle groove A301 of the part 3; when the reamer 19 works, the two reamers 4 are one higher than the part 3 and one hidden in the middle groove A301 of the part 3;

[0033] The figures show the machining of the reaming and reaming two sequences, if drilling and reaming two sequences are needed, only the tool is replaced, the output rotating speed of the gear transmission system of the spindle box 7 is replaced into the rotating speed required by drilling and reaming, that is, the position of the reamer 4 is replaced into a drill bit, and the position of the reamer 19 is unchanged.

[0034] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0035] The part not described in detail in the utility model is prior art.

Claims

1. A double-station machine tool for machining a group of holes, comprising a bed (1), a clamping body (2), a feed slide (16), a column body (14), a lifting mechanism and a spindle box (7), characterized in that: The bed body (1) is a rectangular table structure arranged horizontally, a clamping body (2) is arranged at one end of the upper surface of the bed body (1), and a feeding slide table (16) is arranged at the other end; a stand column body (14) is arranged on the slide plate of the feeding slide table (16); the stand column body (14) moves reciprocally on the feeding slide table (16) through the slide plate; the stand column body (14) is provided with a stand column slide plate (8); the stand column slide plate (8) is connected with a main shaft box (7); a lifting mechanism is connected to the upper part of the stand column slide plate (8); and the lifting mechanism drives the stand column slide plate (8) and the main shaft box (7) to move up and down.

2. A machine tool for machining a set of holes according to claim 1, characterized in that: The clamping body (2) is a rectangular block structure; the top of the clamping body (2) is used for placing a part (3) to be machined; the middle part of the part (3) is provided with an intermediate groove A (301); an intermediate groove B (201) is arranged at the upper part of the side, opposite to the feeding slide table (16), of the clamping body (2); and the groove depth of the intermediate groove B (201) and the intermediate groove A (301) on the part (3) is greater than the machining depth of a tool.

3. A machine tool for machining a set of holes according to claim 1, characterized in that: The bottom of the stand column body (14) is connected with the slide plate of the feeding slide table (16); the middle part of the stand column body (14) is provided with a hollow structure (1401) for avoiding a motor (20) on the main shaft box (7); the side, opposite to the clamping body (2), of the stand column body (14) is provided with the stand column slide plate (8); the stand column slide plate (8) is in sliding connection with the stand column body (14); the stand column slide plate (8) is provided with a waist-shaped groove (801) for avoiding the motor (20) on the main shaft box (7); the waist-shaped groove (801) on the stand column slide plate (8) cooperates with the hollow structure (1401) on the stand column body (14); the top of the stand column slide plate (8) is connected with the lifting mechanism; and the side, opposite to the clamping body (2), of the stand column slide plate (8) is provided with the main shaft box (7).

4. A two-station machine for machining a set of holes according to claim 3, characterized in that: The lifting mechanism comprises a servo motor (12), a motor base (13), a support (10), a lead screw (15), a lead screw nut (17) and a nut sleeve (18); the bottom of the servo motor (12) is provided with the motor base (13); the bottom of the motor base (13) is provided with the support (10); the support (10) is connected with the top of the stand column body (14); the support (10) is a trapezoidal block structure with a cavity in the inside; the main shaft of the servo motor (12) penetrates through the top of the motor base (13) and the support (10) and is connected with the lead screw (15); the lead screw nut (17) is sleeved on the lead screw (15) and cooperates with the lead screw (15); the lead screw nut (17) is provided with the nut sleeve (18); and the nut sleeve (18) is connected with the upper center of the stand column slide plate (8).

5. A two-station machine for machining a set of holes according to claim 4, characterized in that: One side of the support (10) is provided with a connecting part; the connecting part is provided with a counterweight oil cylinder (11); the piston rod end of the counterweight oil cylinder (11) is provided with a connecting block (9); and one end of the upper part of the stand column slide plate (8) is connected with the connecting block (9).

6. A two-station machine for machining a series of holes according to claim 3, characterized in that: The main shaft box (7) is a rectangular box structure as a whole, comprising a motor (20), a box body and a tool auxiliary group, the connecting surface of the main shaft box (7) and the column slide plate (8) is provided with the motor (20), the motor (20) is located inside the waist-shaped groove (801) and the hollow structure (1401) and does not interfere with the column slide plate (8) and the column body (14), the main shaft box (7) is provided with the tool auxiliary group on the side opposite to the clamping body (2), the box body is provided with a gear transmission system, and the motor (20) drives the tool auxiliary group to work through the gear transmission system in the box body.

7. A two-station machine for machining a series of holes according to claim 6, characterized in that: The tool auxiliary group comprises an expanding tool (4), a reamer (19), a main shaft (6) and a quick-change connecting rod (5), the tool auxiliary group is two groups, corresponding to two pin holes of the part (3), each group is provided with two main shafts (6) upward and downward, the main shaft (6) is driven to rotate synchronously through the gear transmission system in the box body, the upper main shaft (6) is used for connecting the expanding tool (4), and the lower main shaft (6) is used for connecting the reamer (19), the expanding tool (4) and the reamer (19) are all non-standard tools, the expanding tool (4) and the reamer (19) are connected to the main shaft (6) through the quick-change connecting rod (5), and the tools can be quickly replaced.

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