Punch machine

Abstract

The present invention provides a driver capable of suppressing an increase in the number of components. The driver comprises: an ejection section (23) to which a fixing member is supplied; and a striking section capable of moving relative to the ejection section (23) so as to strike the fixing member supplied to the ejection section (23) into a target member, wherein the driver comprises: a first push rod (74) capable of contacting and separating with the target member and capable of moving relative to the ejection section (23); a second push rod (135) capable of moving in conjunction with the first push rod (74); and a needle bar guide (120) and a cover (30) having the function of guiding the movement of the first push rod (74) and the second push rod (135) relative to the ejection section (23) in a predetermined direction.

Description

Technical Field

[0001] The present invention relates to a driver, which comprises: an ejection part; a striking part for striking a fixing member supplied to the ejection part; a first push rod which can move relative to the ejection part; and a second push rod which can move in conjunction with the first push rod. Background Art

[0002] Patent document 1 describes an example of a driver, which includes: an ejection unit; a striking unit that strikes a fixed part supplied to the ejection unit; a first push rod that can move relative to the ejection unit; and a second push rod that can move in conjunction with the first push rod. The driver described in patent document 1 includes a main body, an ejection unit, a striking unit, a cylinder, a trigger, a first push rod, a second push rod, and a magazine. The ejection unit is provided in the main body, and the first push rod and the second push rod can move relative to the ejection unit. The magazine accommodates the fixed part, and the fixed part is sent to the ejection unit. The cylinder is provided in the main body, and the striking unit can move along the cylinder.

[0003] The driving machine described in Patent Document 1 supplies compressed air into the main body. When the trigger is operated and the ejection part is pressed against the object part, compressed air is supplied into the cylinder. The striking part is operated by the pressure of the compressed air in the cylinder to strike the fixed part delivered to the ejection part. In the driving machine described in Patent Document 1, by adjusting the positions of the first push rod and the second push rod relative to the ejection part, the driving depth of the fixed part can be adjusted.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent No. 3243927 Summary of the invention

[0007] Problems to be solved by the invention

[0008] The inventors of the present application have recognized the following problem: if components for determining the movement directions of the first plunger and the second plunger with respect to the injection unit are provided separately, the number of components increases.

[0009] An object of the present invention is to provide a driver capable of suppressing an increase in the number of components.

[0010] Solutions to Solve Problems

[0011] A driving machine in one embodiment comprises: an ejection part to which a fixing member is supplied; and a striking part which can move relative to the ejection part so as to drive the fixing member supplied to the ejection part into an object member, wherein the driving machine comprises: a first push rod which is provided at the ejection part and can contact and separate from the object member and can move relative to the ejection part; a second push rod which is provided at the ejection part and can move in conjunction with the first push rod; and a guide component which has the function of guiding the movement of the first push rod and the second push rod relative to the ejection part in a predetermined direction.

[0012] Effects of the Invention

[0013] In the driver according to one embodiment, a common guide member is provided for the moving direction of the first push rod and the second push rod relative to the injection unit. Therefore, an increase in the number of components of the driver can be suppressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side cross-sectional view showing a driver according to the embodiment of the present invention.

[0015] Figure 2 This is a front view of a portion of the driver cut away.

[0016] Figure 3 It is a side cross-sectional view of the emitting portion of the specific example 1 having the positioning mechanism.

[0017] Figure 4 (A) is a block diagram showing a control system of the driver, and (B) is a coordinate system showing positioning directions of elements of the driver.

[0018] Figure 5 This is a specific example 1 of the positioning mechanism and is a front view of the needle bar guide.

[0019] Figure 6 It is a perspective view of a push rod provided in a driver.

[0020] Figure 7 It is a front view of the injection portion of the specific example 1 having the positioning mechanism.

[0021] Figure 8 It is a side cross-sectional view of the emission portion of specific example 2 having a positioning mechanism.

[0022] Fig. 9 This is a specific example 2 of the positioning mechanism, and is a front view of the needle bar guide and the push rod.

[0023] Fig.10 It is a three-dimensional view of the injection portion of specific example 2 having a positioning mechanism.

[0024] Fig.11It is a side cross-sectional view of the emission portion of specific example 3 having a positioning mechanism.

[0025] Fig.12 This is a specific example 3 of the positioning mechanism, and is a front view of the needle bar guide and the push rod.

[0026] Fig.13 It is a three-dimensional view of the injection portion of specific example 3 having a positioning mechanism. DETAILED DESCRIPTION

[0027] Embodiments of the driver according to the present invention will be described with reference to the drawings.

[0028] Figure 1 The driver 10 shown has a housing 11, a striking part 12, a magazine 13, an electric motor 14, a conversion mechanism 15, a control part 16, a battery pack 17 as a power supply part, and a counterweight 18. The housing 11 has a cylindrical body 19, a handle 20 connected to the body 19, and a motor housing 21 connected to the body 19. An assembly part 22 is connected to the handle 20 and the motor housing 21.

[0029] The striking part 12 has a plunger 26 disposed in the main body 19 and a driving needle 27 fixed to the plunger 26. The driving needle 27 is made of metal. A guide shaft 28 is fixed in the main body 19. The center line A1 is the center of the guide shaft 28. The plunger 26 is mounted on the guide shaft 28, and the striking part 12 can move in the direction along the center line A1.

[0030] The injection part 23 is arranged outside the main body 19, and the injection part 23 is installed on the main body 19. The injection part 23 can be defined as a machine head. The injection part 23 has a needle bar guide 120, a magazine plate 105 and a cover 30. The needle bar guide 120 can be any one of metal and synthetic resin. The magazine plate 105 can be any one of metal and synthetic resin. The cover 30 can be any one of metal and synthetic resin. The injection path 24 is formed by the needle bar guide 120 and the magazine plate 105. The injection path 24 can be any one of a groove, a passage, a hole, a gap, and a space. The driving needle bar 27 can move in the injection path 24.

[0031] like Figure 2 and Figure 3 As shown, the first push rod 74 is installed on the ejection part 23. The first push rod 74 can move and stop relative to the ejection part 23. The ejection part 23 prevents the drive needle 27 from moving in a direction intersecting the center line A1 by contacting the drive needle 27. The magazine 13 is supported by the ejection part 23 and the housing 11.

[0032] Figure 1The counterweight 18 shown suppresses the reaction received by the housing 11. As an example, the counterweight 18 is made of metal. The counterweight 18 is mounted on the guide shaft 28. The counterweight arm 35 is provided on the counterweight 18. The counterweight 18 is mounted on the guide shaft 28. The counterweight 18 can move in the direction along the center line A1. The counterweight 18 has a protrusion 18A protruding from the outer surface.

[0033] A metal spring 36 is disposed in the main body 19, and the spring 36 is disposed between the plunger 26 and the weight 18 in the direction along the center line A1. The plunger 26 receives a force in a first direction D1 approaching the ejection portion 23 from the spring 36 in the direction along the center line A1. The weight 18 receives a force in a second direction D2 away from the ejection portion 23 from the spring 36 in the direction along the center line A1. The first direction D1 and the second direction D2 are opposite to each other. A weight buffer 37 and a plunger buffer 38 are provided in the main body 19. Both the weight buffer 37 and the plunger buffer 38 are made of synthetic rubber.

[0034] exist Figure 1 In the embodiment, the movement of the striking part 12, the plunger 26, or the counterweight 18 in the first direction D1 is referred to as descent. The movement of the striking part 12, the plunger 26, or the counterweight 18 in the second direction D2 is referred to as ascent. The striking part 12 and the counterweight 18 can reciprocate in the direction along the center line A1.

[0035] The battery pack 17 can be mounted and removed from the mounting portion 22. The battery pack 17 includes a housing 39 and a plurality of battery cells housed in the housing 39. The battery cells are secondary batteries that can be charged and discharged, and any of lithium ion batteries, nickel hydrogen batteries, lithium ion polymer batteries, and nickel cadmium batteries can be used as the battery cells. The battery pack 17 is a DC power source, and voltage is applied from the battery pack 17 to the electric motor 14.

[0036] Figure 1 The control unit 16 shown is provided in the mounting unit 22 , and is a microcomputer having an input port, an output port, a calculation processing unit, and a storage unit. Figure 1 The trigger 42 and the trigger switch 43 are provided on the handle 20. When the user applies an operating force to the trigger 42, the trigger switch 43 is turned on. When the user releases the operating force applied to the trigger 42, the trigger switch 43 is turned off. Figure 4 The inverter circuit 72 shown in (A) is provided in the motor housing 21. The inverter circuit 72 includes a plurality of switching elements that can be turned on and off.

[0037] The position detection sensor 44 is provided in the housing 11. The position detection sensor 44 is, for example, a micro switch. When the protrusion 18A of the counterweight 18 contacts the position detection sensor 44, the position detection sensor 44 is turned on. When the protrusion 18A is separated from the position detection sensor 44, the position detection sensor 44 is turned off. The signal output from the position detection sensor 44 is input to the control unit 16. The control unit 16 processes the signal of the position detection sensor 44 and estimates the position of the plunger 26 and the counterweight 18 in the direction along the center line A1.

[0038] The push rod switch 73 is provided in the magazine 13. The push rod switch 73 is a contact type switch having a contact piece 73A. The push rod switch 73 detects the first push rod 74 moving to be pressed by the object part W1 and the first push rod 74 moving to be separated from the object part W1, and outputs a signal. The control unit 16 receives the signal of the trigger switch 43, the signal of the push rod switch 73, and the signal of the position detection sensor 44, and outputs a signal to control the inverter circuit 72.

[0039] The electric motor 14 has a rotor 14A and a stator 14B, and the motor shaft 46 is mounted on the rotor 14A. A voltage is applied to the electric motor 14 from the battery pack 17, and the motor shaft 46 rotates. The motor shaft 46 is connected to the rotating member 76 via the speed reducer 75. The electric motor 14, the motor shaft 46, and the rotating member 76 are arranged concentrically with the center line A2 as the center. The center line A2 is arranged to intersect with the center line A1.

[0040] The conversion mechanism 15 converts the rotational force of the rotating member 76 into the moving force of the striking part 12 and the moving force of the counterweight 18. The conversion mechanism 15 includes a first gear 50, a second gear 51, and a third gear 52. The cam roller 57 is provided on the first gear 50, the cam roller 58 is provided on the second gear 51, and the cam roller 59 is provided on the third gear 52.

[0041] When a voltage is applied from the battery pack 17 to the electric motor 14 and the motor shaft 46 rotates in the forward direction, the rotational force of the motor shaft 46 is transmitted to the first gear 50 via the speed reducer 47. The rotational force of the first gear 50 is transmitted to the third gear 52 via the second gear 51.

[0042] The first engagement portion 77 is provided on the plunger 26. The cam rollers 57 and 58 can engage with and release from the first engagement portion 77. The second engagement portion 78 is provided on the weight 18. The cam roller 59 can engage with and release from the second engagement portion 78.

[0043] The cartridge box 13 includes a main body 80 and a guide portion 81, and the main body 80 is fixed to the housing 11 and the ejection portion 23. The push rod switch 73 is mounted on the main body 80. The guide portion 81 can move and stop relative to the main body 80 in the direction along the center line A2. The locking rod 107 is provided on the guide portion 81. When the user operates the locking rod 107, the guide portion 81 can be moved relative to the main body 80. The guide portion 81 includes a cartridge box plate 105, and when the guide portion 81 is positioned at the main body 80, the cartridge box plate 105 contacts the needle bar guide 120. A storage chamber is formed between the main body 80 and the guide portion 81. The storage chamber can accommodate a plurality of fixing members 25 in a row. Adjacent fixing members 25 are connected to each other by an adhesive.

[0044] The feeder 70 is provided in the magazine 13. The feeder 70 is urged in a fifth direction B1 close to the ejection portion 23 by the force of a metal spring 71. The fifth direction B1 is a direction along the center line A2. The feeder 70 conveys the fixing member 25 accommodated in the magazine 13 to the ejection path 24. The fixing member 25 moves along the guide portion 81. The contact member 114 is mounted on the magazine 13. The contact member 114 can be defined as a base. The contact member 114 is arranged at a distance from the ejection portion 23 in the conveying direction of the fixing member 25.

[0045] Next, a usage example of the driver 10 is described. The control unit 16 controls so that when at least one of the trigger switch 43 and the push rod switch 73 is turned off, the electric motor 14 is not supplied with power. The striking unit 12 stops at the standby position. Here, the following example is described: When the striking unit 12 stops at the standby position, the plunger 26 is separated from the plunger buffer 38.

[0046] When the user applies an operating force to the trigger 42, the trigger switch 43 is turned on, and when the first push rod 74 is pressed against the object part W1, the push rod switch 73 is turned on. Then, the control unit 16 applies a voltage to the electric motor 14 to rotate the motor shaft 46. The rotational force of the motor shaft 46 is amplified by the speed reducer 75 and transmitted to the first gear 50, and the first gear 50, the second gear 51 and the third gear 52 rotate.

[0047] When at least one of the cam rollers 57 and 58 engages with the first engagement portion 77, the striking part 12 rises from the standby position. When the cam roller 59 of the third gear 52 engages with the second engagement portion 78, the weight 18 descends.

[0048] Next, when the cam rollers 57 and 58 are both released from the first engaging portion 77, the striking portion 12 is lowered by the force of the spring 36. In addition, when the cam roller 59 is released from the second engaging portion 78, the counterweight 18 is raised by the force of the spring 36. The driving needle 27 strikes a fixing member 25 that reaches the ejection path 24 from the magazine 13, and the fixing member 25 is driven into the target member W1.

[0049] After the driving needle rod 27 strikes the fixing member 25, the plunger 26 collides with the plunger buffer 38. The plunger buffer 38 absorbs a portion of the kinetic energy of the striking portion 12. In addition, the counterweight 18 collides with the counterweight buffer 37. The counterweight buffer 37 absorbs a portion of the kinetic energy of the counterweight 18. In this way, when the striking portion 12 moves along the first direction D1 and strikes the fixing member 25, the counterweight 18 can reduce the reaction when the striking portion 12 strikes the fixing member 25.

[0050] After the fixing member 25 is driven into the target member W1, the user separates the first push rod 74 from the target member W1 and the trigger switch 43 is turned off, and the control unit 16 rotates the electric motor 14. Then, the striking unit 12 rises from the bottom dead center against the urging force of the spring 36, and the plunger 26 separates from the plunger buffer 38. When the control unit 16 detects that the striking unit 12 has reached the standby position, it stops the electric motor 14.

[0051] The user can press the first push rod 74 against the target workpiece W1 and bring the contact member 114 into contact with the target workpiece W1. That is, the first push rod 74 and the contact member 114 come into contact with the target workpiece W1 at two locations spaced apart in the conveying direction of the fixing member 25. In addition, the user can also use the driver 10 in a state where the contact member 114 is removed from the magazine 13.

[0052] The emitting portion 23 of this embodiment has the following structure. Figure 5 , Figure 6 as well as Figure 7 As shown, the needle bar guide 120 has a stopper 31, protrusions 32, 33, guide parts 121, 122, 123, 124, 125, 126, 127, 128, 129. In the direction along the center line A1, the guide parts 121, 122 are arranged in the same range, and the guide parts 123, 124 are arranged in the same range. In the direction along the center line A1, the guide parts 121, 122 and the guide parts 123, 124 are arranged at intervals. The guide parts 121, 122, 123, 124, 125 are flat surfaces and are located on the same plane.

[0053] The guides 126 and 127 and the guides 128 and 129 are arranged at intervals in the direction along the center line A1. The guides 126 and 127 are arranged across the center line A1. The guides 128 and 129 are arranged across the center line A1.

[0054] In addition, a plurality of mounting holes 130 are provided in the needle bar guide 120 . Figure 2 and Figure 3 The screw members 136 shown are respectively disposed in the mounting holes 130. By tightening the screw members 136, the cover 30 and the needle bar guide 120 are fixed to the main body 19. The first push rod 74 is disposed between the needle bar guide 120 and the cover 30 in the direction along the center line A2.

[0055] like Figure 6 as well as Figure 7 As shown, the first push rod 74 has a plate-shaped body 74A, an arm 131, and a head 74B. The arm 131 protrudes from the body 74A in a direction intersecting the center line A1. The head 74B is connected to the body 74A. The head 74B has an end 74C. The body 74A of the first push rod 74 is arranged between the guide portion 126 and the guide portion 127, and between the guide portion 128 and the guide portion 129.

[0056] The shaft hole 132 is provided in the arm 131. An internal thread is provided on the inner surface of the shaft hole 132. The guide hole 138 is provided in the first push rod 74. The protrusion 33 is located in the guide hole 138. When the first push rod 74 moves in the direction along the center line A1 relative to the needle bar guide 120, the protrusion 33 moves in the guide hole 138. The spring 139 is arranged in the guide hole 138. The spring 139 contacts the protrusion 33 and is compressed, and the spring 139 applies force in the third direction D4 in such a manner that the first push rod 74 is separated from the main body 19.

[0057] The adjuster 133 is disposed between the arm 131 and the protrusion 32. The adjuster 133 has a shaft 134. An external thread is provided on the outer surface of the shaft 134. The adjuster 133 is a cylindrical dial. The shaft 134 is disposed in the shaft hole 132. When the user rotates the adjuster 133, the adjuster 133 moves relative to the arm 131 in the direction along the center line A1.

[0058] like Figure 7As shown, the adjuster 133 has a pin 164. The second push rod 135 is arranged between the adjuster 133 and the protrusion 32. The second push rod 135 has an arm 135A and an axial hole 163. The arm 135A protrudes from the second push rod 135 in a direction intersecting the center line A1. In addition, the pin 164 is arranged in the axial hole 163. The spring 137 is arranged between the protrusion 32 and the second push rod 135. The spring 137 is compressed in the direction along the center line A1, and the spring 137 presses the second push rod 135 against the adjuster 133. The second push rod 135 can move in the direction along the center line A1 relative to the needle bar guide 120. By moving the second push rod 135, the push rod switch 73 is switched on and off.

[0059] The functions and effects of the first push rod 74, the second push rod 135 and the adjuster 133 are as follows: The first push rod 74 is urged in the third direction D4 by the force of the spring 139 when the head 74B is separated from the object W1 or when the head 74B is pressed against the object W1.

[0060] When the head 74B is separated from the object member W1 or when the head 74B is pressed against the object member W1 , the second push rod 135 is urged in the third direction D4 by the force of the spring 137 and contacts the adjuster 133 .

[0061] First, the case where the head 74B of the first push rod 74 is separated from the object part W1 is described. The force of the spring 139 is transmitted to the shaft 134 via the first push rod 74. Figure 7 As shown in FIG. 1 , the first push rod 74 contacts the stopper 31. That is, the first push rod 74 stops at the initial position. Further, the end portion 74C is separated from the needle bar guide 120. When the first push rod 74 stops at the initial position, as shown in FIG. Figure 3 As shown in FIG. 1 , the second push rod 135 stops at a position separated from the contact piece 73A, that is, at an initial position. Therefore, the push rod switch 73 is turned off.

[0062] Then, when the head 74B is pressed against the object part W1, the first push rod 74 moves in the fourth direction D5 relative to the ejection part 23 against the force of the spring 139. Therefore, the shaft part 134 is separated from the stopper 31. The fourth direction D5 is a direction along the center line A1 and is opposite to the third direction D4.

[0063] When the first push rod 74 moves in the fourth direction D5, the moving force of the first push rod 74 is transmitted to the second push rod 135 via the adjuster 133. Therefore, the second push rod 135 moves in the fourth direction D5 against the force of the spring 137. When the second push rod 135 contacts the contact piece 73A and causes the contact piece 73A to actuate, the push rod switch 73 switches from disconnection to connection. Moreover, the first push rod 74 stops when the end 74C contacts the needle bar guide 120. That is, the first push rod 74 stops at the action position. When the first push rod 74 stops at the action position, the second push rod 135 stops at the action position.

[0064] When the head 74B is separated from the object member W1 while the first push rod 74 is stopped at the operating position, the first push rod 74 moves from the operating position in the third direction D4 by the force of the spring 139. Therefore, the end 74C is separated from the needle bar guide 120.

[0065] In addition, when the first push rod 74 moves from the operating position in the third direction D4, the second push rod 135 maintains a state of contact with the adjuster 133, and moves from the operating position in the third direction D4 by the force of the spring 137. When the second push rod 135 is separated from the contact piece 73A, the push rod switch 73 is switched from on to off. When the shaft portion 134 contacts the stopper 31, the first push rod 74 stops at the initial position. When the first push rod 74 stops at the initial position, the head 74B protrudes from the front end 105A of the magazine plate 105 by a length L1. The length L1 is a length in the direction along the center line A1. In addition, the second push rod 135 stops at the initial position.

[0066] When the user rotates the adjuster 133 in a state where the head 74B is separated from the object part W1, the first push rod 74 moves in a direction along the center line A1 relative to the ejection part 23 in a state where the arm 131 and the shaft 134 are connected. When the user switches the direction in which the adjuster 133 is rotated, the direction in which the first push rod 74 moves switches between the third direction D4 and the fourth direction D5. That is, when the user rotates the adjuster 133, the length L1 can be adjusted.

[0067] Moreover, the amount of movement of the first push rod 74 from the initial position to the operating position is determined according to the length L1. As the length L1 increases, the amount of movement of the first push rod 74 from the initial position to the operating position increases. Thus, the user can adjust the position of the head 74B of the first push rod 74 relative to the front end 105A of the cassette plate 105 in the direction along the center line A1 by rotating the adjuster 133.

[0068] Furthermore, when the striking part 12 reaches the bottom dead center, the front end of the driving needle rod 27 is located at the front end 105A of the magazine plate 105. That is, the user can adjust the driving amount of the fixing member 25 relative to the object member W1 by adjusting the length L1 of the head 74B protruding from the front end 105A.

[0069] The driver 10 has a positioning mechanism that determines the movement of the first push rod 74 and the second push rod 135 relative to the injection unit 23 in a predetermined direction. Figure 4 (B) is a three-dimensional coordinate system showing an example of determining the movement of the first push rod 74 and the second push rod 135 relative to the injection unit 23 in a predetermined direction. Figure 4 (B) shows the first plane 160, the second plane 161, the first axis Z1, the second axis Y1 and the third axis X1. The first plane 160 is perpendicular to the second plane 161. The third axis X1 corresponds to the center line A1, and the first axis Z1 corresponds to the center line A2. The second axis Y1 is Figure 2 and Figure 7 The first axis Z1 is located along the first plane 160 , and the second axis Y1 is located along the second plane 161 . The third axis X1 passes through the intersection of the first plane 160 and the second plane 161 .

[0070] Figure 4 The coordinate system shown in (B) is an example in which the angle formed between the first axis Z1 and the third axis X1 in the first plane 160 is 90 degrees. Figure 4 The coordinate system shown in (B) is an example in which the angle formed between the second axis Y1 and the third axis X1 in the second plane 161 is 90 degrees.

[0071] This embodiment discloses specific example 1, specific example 2, and specific example 3 of the positioning mechanism.

[0072] (Specific Example 1) The first push rod 74 contacts the guides 121, 122, 123, 124 and the cover 30, respectively, thereby limiting the movement of the first push rod 74 in the direction intersecting the third axis X1 in the first plane 160. The first push rod 74 contacts the guides 126, 127, 128, 129, respectively, thereby limiting the movement of the first push rod 74 in the direction intersecting the third axis X1 in the second plane 161.

[0073] In addition, the arm 135A contacts the guide portion 125 and the cover 30, thereby restricting the movement of the second push rod 135 in the first plane 160 in the direction intersecting the third axis X1. The arm 135A contacts the guide portion 127, thereby restricting the movement of the second push rod 135 in the second plane 161 in the direction intersecting the third axis X1.

[0074] That is, the needle bar guide 120 and the cover 30 both have the function of being components for positioning the first push rod 74 and the second push rod 135 relative to the injection portion 23. Therefore, it is not necessary to independently provide a positioning component for the first push rod 74 and a positioning component for the second push rod 135. Therefore, it is possible to suppress an increase in the number of components of the driver 10, and to achieve miniaturization, lightness, and low cost.

[0075] In addition, the moving directions of the first push rod 74 and the second push rod 135 are positioned in a manner that is along the direction of the third axis X1. Therefore, it is possible to suppress the moving force of the element on one side from acting as a torque that causes the element on the other side to rotate with a predetermined position as a fulcrum. Therefore, it is possible to suppress the increase in the movement resistance of the first push rod 74 and the movement resistance of the second push rod 135. In addition, it is possible to suppress the increase in the contact resistance between the adjuster 133 and the second push rod 135, and suppress the reduction in the operability of the adjuster 133.

[0076] In addition, the guide portions 121 , 122 , 123 , 124 , and 125 are located on the same plane. Therefore, it is possible to reduce the sliding resistance when the first push rod 74 and the second push rod 135 move in the direction along the third axis X1 .

[0077] The guides 126 and 127 and the guides 128 and 129 are positioned in contact with the first push rod 74 in two ranges spaced apart in the direction along the third axis X1. Thus, the first push rod 74 can be reliably prevented from moving in the second plane 161 in the direction intersecting the third axis X1.

[0078] (Specific Example 2) Specific Example 2 of the positioning mechanism is shown in Figure 8 , Fig. 9 as well as Fig.10 The needle bar guide 120 has guide parts 140, 141, 142, and 143. The guide parts 140 and 141 are arranged in the same range in the direction along the center line A1. The guide parts 142 and 143 are arranged in the same range in the direction along the center line A1. The configuration range of the guide parts 140 and 141 is different from the configuration range of the guide parts 142 and 143.

[0079] The first push rod 74 is disposed between the magazine 13 and the cover 30 in the direction along the center line A2. The first push rod 74 and the second push rod 135 are in contact with the needle bar guide 120 and the cover 30, respectively, and are thereby positioned in the direction along the first axis Z1. Figure 8 The guide parts 140 and 141 contact the main body 74A of the first push rod 74, thereby positioning the first push rod 74 in the direction along the second axis Y1. The second axis Y1 is equivalent to Fig. 9The guide parts 142 and 143 contact the second push rod 135, thereby positioning the second push rod 135 in the direction along the second axis Y1.

[0080] The cover 30 has an opening 144, a stopper 148, and a mounting hole 149. The screw member is inserted and fastened in the mounting holes 149 and 130, and the cover 30 and the needle bar guide 120 are fixed to the Figure 1 The main body 19.

[0081] A portion of the second push rod 135 and a portion of the arm 131 are disposed in the opening 144. The protrusion 145 is provided on the cover 30, and the protrusion 145 has a shaft hole 146. The pin 164 is disposed in the shaft holes 163 and 146. The spring 147 is disposed between the protrusion 145 and the second push rod 135. The spring 147 applies force to the second push rod 135 in the third direction D4, and the second push rod 135 comes into contact with the adjuster 133 and stops. The force of the spring 147 is transmitted to the arm 131 via the second push rod 135 and the adjuster 133, and the first push rod 74 is always applied force in the third direction D4.

[0082] The functions and effects of the first push rod 74, the second push rod 135, and the adjuster 133 in the specific example 2 are as follows: When the head 74B is separated from the object part W1, or when the head 74B is pressed against the object part W1, the second push rod 135 is urged in the third direction D4 by the force of the spring 147 and contacts the adjuster 133.

[0083] First, the case where the head 74B of the first push rod 74 is separated from the object W1 is described. The force of the spring 147 is transmitted to the shaft 134 via the second push rod 135 and the adjuster 133. Figure 8 As shown in FIG. 1 , the first push rod 74 contacts the stopper 148. That is, the first push rod 74 stops at the initial position. Moreover, the end portion 74C is separated from the needle bar guide 120. When the first push rod 74 stops at the initial position, as shown in FIG. Figure 8 As shown in FIG. 1 , the second push rod 135 stops at a position separated from the contact piece 73A, that is, at an initial position. Therefore, the push rod switch 73 is turned off.

[0084] Then, when the head portion 74B is pressed against the object piece W1 , the first push rod 74 moves in the fourth direction D5 relative to the ejection portion 23 against the force of the spring 147 . As a result, the shaft portion 134 is separated from the stopper 148 .

[0085] When the first push rod 74 moves in the fourth direction D5, the moving force of the first push rod 74 is transmitted to the second push rod 135 via the adjuster 133. Therefore, the second push rod 135 moves in the fourth direction D5 against the force of the spring 137. When the second push rod 135 contacts the contact piece 73A and causes the contact piece 73A to actuate, the push rod switch 73 switches from disconnection to connection. Then, when the end 74C contacts the needle bar guide 120, the first push rod 74 stops. That is, the first push rod 74 stops at the action position. When the first push rod 74 stops at the action position, the second push rod 135 stops at the action position.

[0086] When the head 74B is separated from the object member W1 while the first push rod 74 is stopped at the operating position, the first push rod 74 moves from the operating position in the third direction D4 by the force of the spring 147. Therefore, the end portion 74C is separated from the needle bar guide 120.

[0087] In addition, when the first push rod 74 moves from the operating position in the third direction D4, the second push rod 135 maintains a state of contact with the adjuster 133 and moves from the operating position in the third direction D4 by the force of the spring 147. When the second push rod 135 is separated from the contact piece 73A, the push rod switch 73 is switched from on to off. When the shaft 134 contacts the stopper 148, the first push rod 74 stops at the initial position. In addition, the second push rod 135 stops at the initial position. In the state where the head 74B is separated from the object part W1, when the user rotates the adjuster 133, the length L1 of the head 74B protruding from the front end 105A can be adjusted.

[0088] In addition, if Fig.10 As shown, the needle bar guide 120 has a cutout portion 150, and a portion 135B of the second push rod 135 that contacts and separates from the contact piece 73A moves within the cutout portion 150, so the movement of the second push rod 135 is not hindered.

[0089] The needle bar guide 120 and the cover 30 restrict the first push rod 74 and the second push rod 135 from moving in the direction intersecting the third axis X1 in the first plane 160. Therefore, there is no need to separately provide a component for positioning the first push rod 74 in the direction intersecting the third axis X1 in the first plane 160 and a component for positioning the second push rod 135 in the direction intersecting the third axis X1 in the first plane 160. Therefore, the number of components of the driver 10 can be reduced, miniaturized, and lightweighted.

[0090] The needle bar guide 120 and the cover 30 prevent the first push rod 74 and the second push rod 135 from moving in the first plane 160 in the direction intersecting the third axis X1. In addition, the guide parts 140 and 141 for positioning the first push rod 74 and the guide parts 142 and 143 for positioning the second push rod 135 are physically provided in the same component, that is, the needle bar guide 120 as a separate component. Therefore, it is not necessary to independently provide components for preventing the first push rod 74 and the second push rod 135 from moving in the second plane 161 in the direction intersecting the third axis X1. Therefore, it is possible to reduce the number of components of the driver 10, and to achieve miniaturization and lightness.

[0091] Furthermore, in the specific example 2 of the positioning mechanism, the same structure as the specific example 1 of the positioning mechanism can obtain the same effect as the specific example 1 of the positioning mechanism.

[0092] (Specific Example 3) Specific Example 3 of the positioning mechanism is shown in Fig.11 , Fig.12 as well as Fig.13 Specific example 3 has a structure substantially the same as that of specific example 1. The guide parts 126 and 127 are in contact with the second push rod 135. The guide parts 126 and 127 are separated from the first push rod 74. The guide parts 128 and 129 are in contact with the first push rod 74. The needle bar guide 120 and the cover 30 are arranged along the Figure 1 The first push rod 74 and the second push rod 135 are positioned in the direction of the center line A2. The spring 139 is disposed between the guide portion 126 and the first push rod 74, and the spring 139 applies force to the first push rod 74 in the third direction D4.

[0093] The first push rod 74 contacts the needle bar guide 120 and the cover 30, respectively, and is restricted from moving in the first plane 160 in a direction intersecting the third axis X1. The first push rod 74 contacts the guides 128 and 129, respectively, and is restricted from moving in the second plane 161 in a direction intersecting the third axis X1.

[0094] The second push rod 135 contacts the needle bar guide 120 and the cover 30, thereby limiting its movement in the first plane 160 in a direction intersecting the third axis X1. The second push rod 135 contacts the guides 127 and 128, thereby limiting its movement in the second plane 161 in a direction intersecting the third axis X1.

[0095] In addition, the first push rod 74 and the second push rod 135 are restricted in their respective moving directions. In contrast, there are gaps between the components due to dimensional errors of the components, processing tolerances of the components, etc. Therefore, the first push rod 74 and the second push rod 135 are not hindered from moving in their original moving directions and can move smoothly.

[0096] That is, the needle bar guide 120 and the cover 30 both have the function of positioning components for the first push rod 74 and the second push rod 135. That is, there is a common component for positioning the first push rod 74 and the second push rod 135. Therefore, there is no need to independently set the positioning component of the first push rod 74 and the positioning component of the second push rod 135. Thus, the increase in the number of components of the driving machine 10 can be suppressed, and miniaturization, lightness, and low cost can be achieved. The other effects of specific example 3 are the same as those of specific example 1.

[0097] An example of the technical meaning of the matters disclosed in the embodiment is as follows. The driver 10 is an example of a driver. The fixing member 25 is an example of a fixing member, and the magazine 13 is an example of a magazine. The ejection part 23 is an example of an ejection part. The striking part 12 is an example of a striking part. The first push rod 74 is an example of a first push rod. The second push rod 135 is an example of a second push rod. The needle bar guide 120 and the cover 30 are examples of guide components.

[0098] The guide component has the function of determining the moving directions of the first push rod and the second push rod as predetermined directions. Therefore, the guide component can be either single or multiple. For example, guide holes can be respectively provided in the first push rod and the second push rod described in the embodiment. Then, a pin arranged in the guide hole is provided in the needle bar guide 120, so that the single needle bar guide 120 has the function of determining the moving directions of the first push rod and the second push rod as predetermined directions. The needle bar guide 120 is an example of a needle bar guide. The cover 30 is an example of a cover. The adjuster 133 is an example of an adjustment mechanism.

[0099] The direction along the center line A1, that is, the direction along the third axis X1 is an example of the moving direction and the predetermined direction of the striking part. The first direction D1 is an example of the first direction. The second direction D2 is an example of the second direction. The length L1 is an example of the amount of the first push rod protruding relative to the ejection part in the first direction. The direction along the center line A2 is an example of the direction in which the fixing member is supplied to the ejection part. The spring 36 is an example of a spring. The electric motor 14 is an example of a motor. The push rod switch 73 and the control unit 16 are examples of a detection unit. The control unit 16 is an example of a control unit. The cassette plate 105 is an example of a cassette plate. The ejection path 24 is an example of an ejection path. The guide parts 121, 122, 123, and 124 are examples of the first guide part. The guide part 125 is an example of the second guide part. The second push rod that can move in conjunction with the first push rod includes the meaning of the second push rod that can move by transmitting the moving force of the first push rod.

[0100] The driver is not limited to the embodiments disclosed using the drawings, and various changes can be made without departing from the scope of the main purpose. For example, the shapes of the first push rod and the second push rod can be any one of an axis shape, a block shape, an arm shape, etc. In addition, the first push rod and the second push rod can be moved relative to the ejection part in a predetermined direction that is the same as the moving direction of the striking part. When the first push rod and the second push rod move, they can be with or without a fulcrum.

[0101] In addition, the spring for moving the striking part in the first direction may be a gas spring instead of a metal spring. The motor may be a hydraulic motor, a pneumatic motor, or an engine instead of an electric motor. The power supply unit for applying voltage to the electric motor may be a DC power supply or an AC power supply.

[0102] The mechanism for applying force to the striking part in the first direction may also be a pressure storage chamber and a pressure chamber provided in the housing instead of a spring. The pressure storage chamber is supplied with compressed gas from the outside of the housing via an air hose. A valve is provided to connect and disconnect the pressure storage chamber and the pressure chamber. The pressure chamber is a space to which compressed gas is supplied from the pressure storage chamber. The striking part moves in the first direction by the pressure in the pressure chamber. When the second push rod is actuated by the moving force of the first push rod, the valve connects or disconnects the pressure storage chamber and the pressure chamber. In addition, the standby position of the striking part may also be a position where the plunger is separated from the plunger buffer.

[0103] The detection unit may also include a non-contact sensor to replace the contact sensor or contact switch that generates a signal by contacting or separating with the second push rod. The non-contact sensor generates a signal without contacting the second push rod. Non-contact sensors include optical sensors and magnetic sensors. The control unit may be a single electrical component or electronic component, or a unit having multiple electrical components or multiple electronic components. The electrical component or electronic component includes a processor, a control circuit, and a module.

[0104] Further, in Figure 4 In the coordinate system of (B), the angle formed between the first plane 160 and the second plane 161 may not be 90 degrees. It is sufficient that the first plane 160 and the second plane 161 intersect. In addition, the angle formed between the first axis Z1 and the third axis X1 in the first plane 160 may not be 90 degrees. It is sufficient that the first axis Z1 and the third axis X1 intersect in the first plane 160. Moreover, the angle formed between the second axis Y1 and the third axis X1 in the second plane 161 may not be 90 degrees. It is sufficient that the second axis Y1 and the third axis X1 intersect in the second plane 161.

[0105] Explanation of symbols

[0106] 10—punch machine, 12—striking part, 13—warehouse box, 14—electric motor, 16—control part, 23—injection part, 24—injection path, 25—fixing part, 30—cover, 36—spring, 73—push rod switch, 74—first push rod, 105—warehouse box plate, 120—needle bar guide, 121, 122, 123, 124, 125, 127, 128, 129—guide part, 133—adjuster, 135—second push rod, A1, A2—center line, D1—first direction, D2—second direction, L1—length, X1—third axis.

Claims

1. A driver, comprising: an ejection portion to which the fixture is supplied; and a striking part that is movable relative to the ejecting part so as to drive the fixing member supplied to the ejecting part into the target member, The driver is characterized by comprising: a first push rod provided at the ejection portion and capable of contacting and separating from the object and capable of moving relative to the ejection portion; and a second push rod, which is disposed at the ejection portion and is movable in conjunction with the first push rod; The injection portion has: a needle bar guide for guiding the movement of the striking part; and a cover fixed to the needle bar guide and arranged to overlap the needle bar guide in a direction intersecting the moving direction of the striking part, The first push rod and the second push rod are both arranged between the needle bar guide and the cover so as to be in contact with both the needle bar guide and the cover. The first and second plungers are guided so as to move along a moving direction of the striking part relative to the ejecting part while being kept in a state capable of contacting both the needle bar guide and the cover.

2. The driver according to claim 1, characterized in that: The striking part is capable of moving in a first direction to strike the fixing member and in a second direction opposite to the first direction. An adjustment mechanism is provided, which can adjust the amount by which the first push rod protrudes relative to the ejection portion in the first direction.

3. The driver according to claim 2, characterized in that: The cover positions the adjustment mechanism relative to the emission portion.

4. The driver according to claim 3, characterized in that: A magazine is also provided for supplying the fixing member to the ejection part. The direction in which the fixing member is supplied to the ejection unit is a direction intersecting with the moving direction of the striking unit. The first push rod is disposed between the magazine and the adjustment mechanism in a direction of supplying the fixing member to the ejection portion.

5. The driver according to any one of claims 1 to 3, characterized in that: Also features: a spring that causes the striking portion to move in a first direction to strike the fixing member; and A motor moves the striking part in a second direction opposite to the first direction.

6. The driver according to claim 5, characterized in that: have: a detection unit configured to detect that the second push rod has moved in the second direction; and A control unit moves the striking unit in the second direction by using the motor when the detection unit detects that the second push rod has moved in the second direction.

7. The driver according to claim 1, characterized in that: A magazine is also provided for supplying the fixing member to the ejection part. The magazine box has a magazine plate in contact with the needle bar guide member, The ejection part includes the magazine plate, The magazine plate and the needle bar guide have an ejection path, and the fixing member driven in by the striking part passes through the ejection path.

8. The driver according to any one of claims 1 to 3, characterized in that: The needle bar guide has a first guide portion and a second guide portion located in the same plane. The first push rod is guided by contacting the first guide portion. The second push rod is guided by contacting the second guide portion.

9. The driver according to any one of claims 1 to 3, characterized in that: The second push rod is movable by a moving force transmitted from the first push rod.

10. A driver, comprising: an ejection portion to which the fixture is supplied; and a striking part that is movable relative to the ejecting part so as to drive the fixing member supplied to the ejecting part into the target member, The driver is characterized by comprising: A first push rod, which is provided at the ejection portion and can contact and separate from the object, and can move relative to the ejection portion; a second push rod, which is disposed at the ejection portion and is movable in conjunction with the first push rod; A guide portion, which guides the movement of the first push rod and the second push rod relative to the ejection portion in a predetermined direction; a force-applying portion, which causes the striking portion to move along a first direction of striking the fixing member; a motor that moves the striking portion in a second direction opposite to the first direction; a detection unit configured to detect that the second push rod has moved in the second direction; and a control unit that moves the striking unit in the second direction through the motor when the detection unit detects that the second push rod has moved in the second direction; The injection unit includes a needle bar guide and a cover fixed to the needle bar guide. The guide portion includes a needle bar guide member side guide portion provided on the needle bar guide member, The first push rod and the second push rod are arranged between the needle bar guide side guide part and the cover, and are guided by contacting both the needle bar guide side guide part and the cover so that they are guided in a manner along the moving direction of the striking part relative to the movement of the ejection part.

Images