Machine tool

Abstract

To provide a workpiece delivery apparatus and a machine tool capable of conveying blank material irrespective of a shape of blank material.SOLUTION: A workpiece delivery apparatus 80 is provided between a workpiece supply part 60 which supplies blank material Wb and a conveyance hand device 70 which conveys the blank material Wb to a working part 2 and delivers the blank material Wb from the workpiece supply part 60 to the conveyance hand device 70. The workpiece delivery apparatus 80 includes a hand part 81 which holds the blank material Wb supplied from the workpiece supply part 60 and a first driving part 84 which displaces the hand part 81, between a first delivery / acceptance position Pa capable of receiving the blank material Wb from the workpiece supply part 60 and a second delivery / acceptance position Pb capable of delivering the blank material Wb onto the conveyance hand device 70.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention , engineering Concerning machinery. [Background technology]

[0002] For example, a vibrating bowl-type parts feeder described in Patent Document 1 separates pins (blanks) one by one and moves them along rails to a position where they can be picked up by a parts pick-up device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 2678709 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned Patent Document 1, since the pins are configured to slide along the rails, depending on the shape of the blanks, it may be difficult to transport the blanks along the rails.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and is capable of transporting blanks regardless of their shape. Work The purpose of the present invention is to provide a machine for [Means for solving the problem]

[0006] In order to achieve the above object, a machine tool according to the present invention includes a first spindle unit that rotates one end of a workpiece while gripping it, a first tool unit that machines the workpiece gripped by the first spindle unit, a second spindle unit that rotates the other end of the workpiece while gripping it, a second tool unit that machines the workpiece gripped by the second spindle unit, and the second spindle unit. The second spindle unit Rotation axis line Direction and , the second spindle unit Rotation axis line of A direction parallel to a horizontal perpendicular line; a moving mechanism for moving the blank material from the work supply unit to the second spindle unit, a work supply unit for supplying a blank material which is a work before machining, a transport hand device for transporting the blank material to the second spindle unit, and a work transfer device provided between the work supply unit and the transport hand device for transferring the blank material from the work supply unit to the transport hand device, wherein the work transfer device comprises a hand unit for gripping the blank material supplied from the work supply unit, and a first drive unit for moving the hand unit between a first position at which the blank material can be received from the work supply unit and a second position at which the blank material can be transferred to the transport hand device, the transport hand device is not attached to the second spindle unit, and comprises a second drive unit for moving the blank material transferred from the work transfer device from the second position to a third position at which the blank material can be transferred to the second spindle unit, Rotation axis The first tool unit is set at a position offset toward the second tool unit. the first position, the second position, and the third position are arranged in this order; When viewed from above, the first spindle unit Rotation axis The work supply section, the work transfer device, the transport hand device, and the second tool unit are provided in one of the areas divided by the above, and the second tool unit performs a first machining on the blank material received by the second spindle unit at the third position, and after performing the first machining, the second spindle unit moves by the moving mechanism to a position opposite the first spindle unit and transfers the work to the first spindle unit, and the first tool unit performs a second machining on the work received by the first spindle unit. Effect of the Invention

[0008] According to the present invention, the blanks can be transported regardless of their shape. [Brief description of the drawings]

[0009] [Figure 1] 1 is a front view of a machine tool according to an embodiment of the present invention; [Diagram 2]1 is a plan view of a machine tool according to an embodiment of the present invention; [Diagram 3] 1 is a side view of a machine tool according to an embodiment of the present invention; [Figure 4] FIG. 3 is an enlarged view of a portion of FIG. [Diagram 5] FIG. 5 is an enlarged view of range A in FIG. [Figure 6] FIG. 4 is an enlarged view of a portion of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A workpiece delivery device and a machine tool according to an embodiment of the present invention will now be described with reference to the drawings. As shown in FIG. 2, the machine tool 1, which is a lathe, includes a processing unit 2, a work supply unit 60, a transfer hand device 70, a work delivery device 80, and a control unit 300. As shown in Figures 1 and 2, the processing section 2 includes a bed S which is a base for the entire processing section 2, a first spindle unit 10 having a first spindle 11, a second spindle unit 20 having a second spindle 21, a first spindle moving mechanism 13Z, second spindle moving mechanisms 25X, 25Z, tool moving mechanisms 42X, 42Y, a first tool unit 45, and a second tool unit 26. In the following, the axial direction along the rotation axis of the first main shaft 11 and the second main shaft 21 is defined as the Z-axis direction, the height direction perpendicular to the Z-axis direction is defined as the Y-axis direction, and the direction perpendicular to the Y-axis and Z-axis directions is defined as the X-axis direction.

[0011] As shown in Fig. 1, the first spindle unit 10 grips and rotates a workpiece W. Specifically, the first spindle unit 10 includes a first spindle 11 and a first spindle stock 12 that rotatably supports the first spindle 11. The first spindle 11 grips one end of the workpiece W. A workpiece rotating motor (not shown) that rotates the first spindle 11 is built into the first spindle stock 12.

[0012] The second spindle unit 20 is provided at a position facing the first spindle unit 10 in the Z-axis direction. The second spindle unit 20 includes a second spindle 21 that grips the other end of the workpiece W, and a second spindle stock 22 that rotatably supports the second spindle 21. A workpiece rotating motor (not shown) that rotates the second spindle 21 is built into the second spindle stock 22.

[0013] The first spindle moving mechanism 13Z moves the first spindle unit 10 in the Z-axis direction. The second spindle moving mechanism 25X moves the second spindle unit 20 in the X-axis direction. The second spindle moving mechanism 25Z moves the second spindle unit 20 in the Z-axis direction.

[0014] The tool moving mechanism 42Y moves the first tool unit 45 in the Y-axis direction. As shown in Fig. 2, the tool moving mechanism 42X moves the first tool unit 45 in the X-axis direction. The first spindle moving mechanism 13Z, the second spindle moving mechanisms 25X, 25Z, and the tool moving mechanisms 42X, 42Y each have a motor, a ball screw, and a nut.

[0015] 2, the first tool unit 45 machines the workpiece W held by the first spindle 11. The first tool unit 45 includes a plurality of tools 45a and a tool holder 45b that holds the plurality of tools 45a. The tools 45a are, for example, a cutting tool or a drill.

[0016] The second tool unit 26 machines the workpiece W gripped by the second spindle 21. The second tool unit 26 includes a plurality of tools 26a and a tool holder 26b that holds the plurality of tools 26a. The tools 26a are, for example, a cutting tool or a drill.

[0017] 2, the work supply unit 60, the transport hand device 70, and the work transfer device 80 are arranged in the X-axis direction. From the side closest to the processing unit 2, they are arranged in the order of the transport hand device 70 → the work transfer device 80 → the work supply unit 60.

[0018] 3, the work supply unit 60 is a parts feeder that supplies a blank material Wb, which is an unmachined workpiece W, to a first transfer position Pa where the blank material Wb can be received by the workpiece delivery device 80. In this example, the blank material Wb is formed in an annular shape. The central axis of the blank material Wb at the first transfer position Pa extends along the Z-axis direction. The work supply unit 60 includes a base unit 61, a bowl 62, a rail 63, and a vibration unit 64. The bowl 62 is installed on the upper surface of the base unit 61, and accommodates a plurality of blank materials Wb. The rail 63 extends linearly in the X-axis direction so that the blank materials Wb can be arranged. A first end of the rail 63 is located inside the bowl 62. A second end of the rail 63 is located outside the bowl 62, at a first transfer position Pa where the blank materials Wb can be delivered to the transport hand device 70. The vibration unit 64 applies vibration to the bowl 62, thereby arranging the blank materials Wb in a spiral shape inside the bowl 62, and then moves the blank materials Wb along the rails 63 until they reach the first transfer position Pa.

[0019] 4, the workpiece delivery device 80 grasps the blank material Wb supplied to the first delivery position Pa by the workpiece supply unit 60 and carries it to the second delivery position Pb. The second delivery position Pb is a position where the transport hand device 70 can receive the blank material Wb from the workpiece delivery device 80. The workpiece transfer device 80 includes a hand unit 81 that grasps the blank material Wb from its outer periphery, a first drive unit 84 that moves the hand unit 81 in the X-axis direction, and a second drive unit 85 that moves the hand unit 81 in the Z-axis direction.

[0020] 6, the first driving unit 84 is a slider-integrated rodless cylinder. The first driving unit 84 includes a slider 84a and a cylinder tube 84b. The cylinder tube 84b extends along the X-axis direction. The slider 84a is configured to be movable along the cylinder tube 84b. 3, a first end portion of the first driving unit 84 close to the work supply unit 60 is supported on the upper surface of the base unit 61 via a support member 89. A second end portion of the first driving unit 84 close to the processing unit 2 is provided as a free end.

[0021] As shown in FIG. 4, the second driving unit 85 is fixed to the slider 84a so as to be movable along the cylinder tube 84b together with the slider 84a. The second driving unit 85 is, for example, a fluid cylinder. The second driving unit 85 moves the hand unit 81 between a retracted position Pr where the hand unit 81 is retracted from the transport hand device 70 and forward positions Pf1, Pf2 where the hand unit 81 is closer to the transport hand device 70. The forward position Pf1 is located inside the hand unit 71 of the transport hand device 70, which will be described later. The forward position Pf2 is provided at a position closer to the retracted position Pr than the forward position Pf1, and is a position where the hand unit 81 can grip the blank material Wb at the first transfer position Pa. The retracted position Pr is located outside the hand unit 71 of the transport hand device 70, which will be described later. The hand unit 81 is configured to be movable in the X-axis direction by a first drive unit 84, and to be movable in the Z-axis direction by a second drive unit 85. The hand unit 81 has hand claws 83 that clamp the blank Wb from the Y-axis direction. The hand unit 81 opens and closes the hand claws 83 by various drive units such as fluid cylinders (not shown).

[0022] The transport hand device 70 receives the blank material Wb from the workpiece delivery device 80 at the second delivery position Pb, and moves the received blank material Wb to the third delivery position Pc within the processing section 2. As shown in FIG. 5, the transfer hand device 70 includes a hand portion 71 that grips the outer periphery of the blank material Wb, and a hand driver 72 that moves the hand portion 71 in the X-axis direction. The hand driving unit 72 is a rodless cylinder with an integrated slider, and includes a slider 72a, a cylinder tube 72b, a rail 72d, and a clamping unit 72e.

[0023] The cylinder tube 72b extends along the X-axis direction. The slider 72a is configured to be slidable along the cylinder tube 72b. The movement of the slider 72a is restricted by abutting against stoppers (not shown) located at both ends of the transport hand device 70 in the X-axis direction. The stoppers may be provided with shock absorbers (dampers) (not shown) that cushion the impact of the slider 72a colliding. The slider 72a has two protrusions 72a1 formed on a surface of the slider 72a facing the workpiece transfer device 80 and arranged to sandwich a connecting plate 71b (described later) from its thickness direction. The clamping portion 72e clamps the connecting plate 71b (described later) in the thickness direction, thereby fixing the hand portion 71 to the slider 72a. The clamping portion 72e has two sets of bolts 72e1 and nuts 72e2. Each bolt 72e1 is screwed into the protruding portion 72a1 while penetrating the X-axis direction. The tip of each bolt 72e1 abuts against the connecting plate 71b. Each nut 72e2 is screwed into the bolt 72e1 from the connecting plate 71b side of the bolt 72e1. When the bolt 72e1 is turned by an operator, each bolt 72e1 moves in its axial direction and is fixed by each nut 72e2. This allows the position of the connecting plate 71b, and therefore the hand portion 71, to be adjusted in the X-axis direction.

[0024] The rail 72d extends along the cylinder tube 72b, and is provided at a position closer to the workpiece transferring device 80 than the cylinder tube 72b. 4, a first end portion in the X-axis direction of the rail 72d (an upper end portion in FIG. 4) faces in the Z-axis direction a part of the cylinder tube 84b of the workpiece transferring device 80. A second end portion in the X-axis direction of the rail 72d (a lower end portion in FIG. 4) is located on the upper surface of the bed S, to the side of the second tool unit 26.

[0025] As shown in FIG. 5, the hand portion 71 includes a gripping portion 71a, a connecting plate 71b, a base portion 71c, and a guide 71d. The connecting plate 71b has a plate shape extending along the Z-axis direction, and is clamped from the X-axis direction by the clamping portion 72e. The base portion 71c is fixed to an end portion of the connecting plate 71b close to the workpiece transferring device 80, and has a plate shape extending along the X-axis direction. The gripping portion 71a is fixed to an end of the base portion 71c that is farther from the connecting plate 71b. The gripping portion 71a is provided at a position closer to the second main shaft 21 (see FIG. 4) than the slider 72a in the X-axis direction. 6, the gripping portion 71a grips the blank Wb from the X-axis direction. The gripping portion 71a is opened and closed by various driving units such as a fluid cylinder (not shown).

[0026] 2, the control unit 300 controls the processing unit 2, the work supply unit 60, the transport hand device 70, and the work transfer device 80. The control unit 300 includes, for example, a CPU (Central Processing Unit) (not shown), a ROM (Read Only Memory) that stores a program that defines the procedure of processing by the CPU, and the like.

[0027] Next, a description will be given of the machining process executed by the control unit 300. The control unit 300 executes this machining process according to an NC program created in advance. During the execution of this machining process, the work supply unit 60 supplies the blank material Wb to the first transfer position Pa. The control unit 300 moves the hand unit 81 to the first transfer position Pa via the first drive unit 84 of the workpiece transferring device 80, as shown by the dashed line in Fig. 4. Then, as shown by the arrow J1 in Fig. 4, the hand unit 81 is advanced in the Z-axis direction toward the blank material Wb via the second drive unit 85 of the workpiece transferring device 80 to an advanced position Pf2, and the hand unit 81 grips the blank material Wb from the Y-axis direction.

[0028] Next, the control unit 300 retracts the hand unit 81 to the retracted position Pr via the second drive unit 85 of the work transfer device 80, as shown by arrow J2 in Figure 4, and moves the hand unit 81 in the X-axis direction to the second transfer position Pb via the first drive unit 84 of the work transfer device 80, as shown by arrow J3 in Figure 4.

[0029] With the hand unit 81 in the second transfer position Pb, the control unit 300 advances the hand unit 81 in the Z-axis direction toward the blank Wb to an advanced position Pf1 via the second drive unit 85 of the workpiece transfer device 80, as shown by an arrow J4 in Fig. 4. This causes the hand claws 83 of the hand unit 81 to enter the hand unit 71 of the transport hand device 70.

[0030] Then, the control unit 300 closes the hand unit 71 and opens the hand unit 81. This transfers the blank material Wb from the hand unit 81 to the hand unit 71. At this time, the hand unit 71 grips the blank material Wb from the X-axis direction. The workpiece transfer device 80 repeatedly carries the blank material Wb from the first transfer position Pa to the second transfer position Pb and transfers it to the transport hand device 70 every time the blank material Wb is supplied to the first transfer position Pa.

[0031] Next, the control unit 300 causes the hand unit 81 to retreat to the retreat position Pr, as shown by an arrow J5 in Fig. 4. Then, as shown by an arrow J6 in Fig. 4, the control unit 300 causes the hand unit 71 to move in the X-axis direction toward the third transfer position Pc via the hand driving unit 72 of the transport hand device 70. Next, the control unit 300 causes the second spindle 21 to face the hand unit 71 at the third transfer position Pc via the second spindle moving mechanisms 25X, 25Z (see FIG. 2), and transfers the blank material Wb from the hand unit 81 to the second spindle 21. The transport hand device 70 repeatedly carries the blank material Wb from the second transfer position Pb to the third transfer position Pc and delivers it to the second spindle 21 every time the blank material Wb is supplied to the second transfer position Pb.

[0032] Next, the control unit 300 performs a first machining process on the blank Wb gripped by the second spindle 21 while utilizing the second tool unit . 2, the control unit 300 causes the second spindle 21 to face the first spindle 11 in the Z-axis direction via the first spindle moving mechanism 13Z and the second spindle moving mechanisms 25X, 25Z, and transfers the workpiece W on which the first machining has been performed from the second spindle 21 to the first spindle 11. Next, the control unit 300 performs the second machining on the workpiece W gripped by the first spindle 11 while utilizing the first tool unit 45. The control unit 300 ejects the workpiece W that has been subjected to the second machining from the first spindle 11 to a workpiece catcher (not shown). The workpiece W that has been ejected to the workpiece catcher is transported to the outside of the machine by a workpiece conveyor (not shown). This completes the machining process. This machining process is performed for each workpiece W (blank piece Wb).

[0033] (effect) According to the embodiment described above, the following effects are achieved. (1) The workpiece transfer device 80 is provided between the workpiece supply unit 60, which supplies the blank material Wb, and the transport hand device 70, which transports the blank material Wb to the processing unit 2, and transfers the blank material Wb from the workpiece supply unit 60 to the transport hand device 70. The workpiece transfer device 80 includes a hand unit 81 that grips the blank material Wb supplied from the workpiece supply unit 60, and a first drive unit 84 that is an example of a drive unit that moves the hand unit 81 between a first transfer position Pa that is an example of a first position where the blank material Wb can be received from the workpiece supply unit 60 and a second transfer position Pb that is an example of a second position where the blank material Wb can be transferred to the transport hand device 70. For example, in the intermediate transfer section according to the comparative example, the blank material supplied from the work supply section is supplied to the transport hand device by sliding or rolling it along an inclined rail. This places restrictions on the shape of the blank material. For example, if the center of gravity of the blank material is offset, the blank material will not roll easily, and if the outer peripheral surface of the blank material is flat, the blank material will not slide easily. Therefore, in the intermediate transfer section according to the comparative example, it was necessary to adjust the rail according to the shape of the blank material. For example, it was necessary to adjust the center height of the work supply section, the intermediate transfer section, and the transport hand device according to the shape of the blank material. According to the above configuration, the blank material Wb is transported between the work supply unit 60 and the transport hand device 70 while being gripped by the hand unit 81 of the work transfer device 80. This reduces restrictions on the shape of the blank material Wb, and the blank material Wb can be transported to the processing unit 2 regardless of the shape of the blank material Wb. In addition, the amount of adjustment work required when the shape of the blank material Wb is changed is reduced. For example, the center height adjustment described above is no longer necessary. Furthermore, in the intermediate transfer section according to the comparative example, a cylinder is required to push the blank moving along the rail so that it can be attached to the hand section of the transport hand device. In order to prevent the next blank from pushing the blank to be attached to the hand section, a cylinder is required to hold down the next blank. With the above configuration, these cylinders are not required, and a simpler configuration can be realized.

[0034] (2) Hand unit 81, which is an example of a first hand unit, grips the blank material Wb. The transport hand device 70 includes hand unit 71, which is an example of a second hand unit, configured to be able to grip the blank material Wb in a state where it is gripped by hand unit 81. According to this configuration, since the directions in which the blank material Wb is gripped are different between the two hand units 71, 81, the hand unit 71 can grip the blank material Wb in a state gripped by the hand unit 81. Therefore, the blank material Wb can be easily transferred between the two hand units 71, 81.

[0035] (3) The machine tool 1 includes a workpiece transfer device 80, a processing section 2 having a second spindle 21 which is an example of a spindle that grips the blank material Wb during processing, a workpiece supply section 60 which supplies the blank material Wb to the workpiece transfer device 80, and a transport hand device 70 which receives the blank material Wb from the workpiece transfer device 80 and transports it to the second spindle 21. According to this configuration, in the machine tool 1, the work supply unit 60, the work transfer device 80, and the transport hand device 70 can supply the blank material Wb to the processing unit 2 regardless of the shape of the blank material Wb.

[0036] The present disclosure is not limited to the above-described embodiments and drawings. Modifications (including deletion of components) can be made as appropriate within the scope of the present disclosure. An example of a modification will be described below.

[0037] (Modification) In the above embodiment, the machine tool 1 includes the first spindle unit 10 and the second spindle unit 20, but either one of the first spindle unit 10 and the second spindle unit 20 may be omitted.

[0038] The moving directions of the first spindle unit 10, the second spindle unit 20 and the first tool unit 45 in the above embodiment can be changed as appropriate. In the above embodiment, the transport hand device 70 may be configured so that the hand portion 71 is movable in the Z-axis direction.

[0039] In the above embodiment, the hand units 71 and 81 grip the blank material Wb from different directions, but this is not limited thereto, and the blank material Wb may be gripped from the same direction. In this case, for example, the hand unit 71 grips one end of the blank material Wb, and the hand unit 81 grips the other end of the blank material Wb. In the above embodiment, the two hand units 71 and 81 each grip the blank material Wb from the outer periphery, but this is not limited thereto, and at least one of the two hand units 71 and 81 may grip the annular blank material Wb from the inner periphery. For example, the hand unit 81 may grip the blank material Wb from the inner periphery, and the hand unit 71 may grip the blank material Wb from the outer periphery. The shape of the blank material Wb is not limited to annular, and may be any shape. For example, the center of gravity of the blank material Wb may be offset, or the outer periphery of the blank material Wb may be a shape that follows a plane.

[0040] In the above embodiment, the work supply unit 60, the transport hand device 70, and the work transfer device 80 are aligned in the X-axis direction, but this is not limiting and they may be aligned in any direction. [Explanation of symbols]

[0041] REFERENCE SIGNS LIST 1...machine tool, 2...machining section, 10...first spindle unit, 11...first spindle, 12...first spindle stock, 13Z...first spindle movement mechanism, 20...second spindle unit, 21...second spindle, 22...second spindle stock, 25X, 25Z...second spindle movement mechanism, 26...second tool unit, 26a, 45a...tool, 26b, 45b...tool holding section, 42X, 42Y...tool movement mechanism, 45...first tool unit, 60...work supply section, 61...base section, 62...bowl, 63, 72d...rail, 84b...cylinder tube, 64...vibration section, 70...transport hand device, 71, 81 ...hand portion, 71a...gripping portion, 71b...connecting plate, 71c...foundation portion, 71d...guide, 72...hand driving portion, 72a, 84a...slider, 72b...cylinder tube, 72a1...projection portion, 72e...clamping portion, 72e1...bolt, 72e2...nut, 80...workpiece transfer device, 83...hand claw, 84...first driving portion, 85...second driving portion, 89...support member, 300...control portion, S...bed, W...workpiece, Pa...first transfer position, Pb...second transfer position, Pc...third transfer position, Pf1, Pf2...forward position, Wb...blank material, Pr...retraction position

Claims

1. A first spindle unit that grips and rotates one end of a workpiece; a first tool unit that processes a workpiece held by the first spindle unit; A second spindle unit that grips and rotates the other end of the workpiece; a second tool unit that processes a workpiece held by the second spindle unit; a moving mechanism that moves the second spindle unit in a direction of a rotation axis of the second spindle unit and in a direction parallel to a perpendicular line extending horizontally to the rotation axis of the second spindle unit; a work supply unit that supplies a blank material, which is a work before machining; a conveying hand device that conveys the blank to the second spindle unit; a workpiece delivery device provided between the workpiece supply unit and the transport hand device, for delivering the blank material from the workpiece supply unit to the transport hand device, The workpiece transfer device is a hand unit that holds the blank material supplied from the work supply unit; a first drive unit that moves the hand unit between a first position at which the hand unit can receive the blank material from the work supply unit and a second position at which the hand unit can deliver the blank material to the transport hand device, the transport hand device is not attached to the second spindle unit, and includes a second drive unit that moves the blank material transferred from the workpiece transfer device from the second position to a third position at which the blank material can be transferred to the second spindle unit; the third position is set at a position shifted toward the second tool unit with respect to a rotation axis of the first spindle unit, the first position, the second position, and the third position are arranged in this order; The work supply unit, the work transfer device, the transport hand device, and the second tool unit are provided in one area of ​​areas divided by the rotation axis line of the first spindle unit in a plan view, The second tool unit performs a first machining process on the blank material received by the second spindle unit at the third position; After the first machining is performed, the second spindle unit is moved by the moving mechanism to a position opposite to the first spindle unit and transfers the workpiece to the first spindle unit. The first tool unit performs a second machining process on the workpiece received by the first spindle unit. Machine tools.

2. a moving direction of the blank material between the first position and the second position of the workpiece transfer device and a moving direction of the blank material between the second position and the third position of the transport hand device are parallel to a horizontally extending perpendicular line of the rotation axis of the first spindle unit; The machine tool according to claim 1.

3. the third position and a tool holding portion for holding a tool of the second tool unit overlap each other; 3. A machine tool according to claim 1 or 2.

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