Automatic feeding tapping tool and tapping machine

Abstract

The utility model discloses an automatic feeding tapping tool, including base, lower bottom plate, upper cover, push board, drive mechanism and clamping mechanism, the lower bottom plate installs on the base, the lower bottom plate top surface is provided with two baffle symmetrically, the upper cover is connected in two the baffle top, to make the lower bottom plate, two baffle and upper cover form the feeding channel between, the upper cover is close to the entrance end of feeding channel and is provided with blanking hole, the push board movably is arranged in the feeding channel, one end of drive mechanism is connected with push board, the clamping mechanism sets up in the outlet end of feeding channel, the utility model discloses still a kind of tapping machine, tapping machine includes the automatic feeding tapping tool. The utility model pushes workpiece by push board, and clamps workpiece in cooperation with clamping mechanism, need not operator to carry and chuck workpiece, reduce the labor intensity, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tapping technology, specifically to an automatic feeding tapping fixture and a tapping machine. Background Technology

[0002] Of the world's steel, 60-70% is sheet metal, most of which is stamped into finished products. Automobile bodies, chassis, fuel tanks, radiator fins, and flanges are all produced through stamping. Instruments, household appliances, bicycles, office machinery, and tableware also contain a large number of stamped parts. The process of forming these products from sheet metal stamping involves shaping, bending, drilling, and tapping. The tapping process is performed by a tapping machine, also known as a thread tapping machine, automatic tapping machine, etc.

[0003] Before tapping, the sheet metal stamping part must first be fixed on a fixture or other device. Traditionally, this is done manually, where the stamping part is loaded and secured to the fixture by hand. After tapping, a new stamping part is manually installed and the fixture is used to fix it in place before the tapping process is restarted. This traditional method requires operators to repeatedly move the workpiece, resulting in high labor intensity and low production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic feeding tapping fixture and tapping machine that eliminates the need for operators to handle and clamp workpieces, thereby reducing labor intensity and improving production efficiency, and solving the problem of low production efficiency caused by the need for manual clamping in existing tapping machines mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic feeding tapping fixture includes a base, a lower base plate, an upper cover plate, a pusher plate, a drive mechanism, and a clamping mechanism. The lower base plate is mounted on the base, and two baffles are symmetrically arranged on the top surface of the lower base plate. The upper cover plate is connected to the top of the two baffles to form a feeding channel between the lower base plate, the two baffles, and the upper cover plate. The upper cover plate has a discharge hole at the inlet end near the feeding channel. The pusher plate is movably disposed in the feeding channel. One end of the drive mechanism is connected to the pusher plate, and the clamping mechanism is disposed at the outlet end of the feeding channel.

[0007] Preferably, the driving mechanism includes a first cylinder fixed to the lower base plate and a slider connected to the piston rod of the first cylinder, the slider being connected to the push plate.

[0008] Preferably, the bottom plate has two symmetrically distributed guide grooves on its top surface, and each guide groove has an elongated hole along its length on its bottom wall.

[0009] Preferably, the slider includes a main body disposed at the bottom of the lower base plate and guide parts symmetrically disposed on the main body. The main body is connected to the piston rod of the first cylinder. The guide parts are T-shaped. The top end of the guide parts is movably disposed in the guide groove and connected to the bottom of the push plate. The bottom end of the guide parts passes through the elongated hole and is connected to the main body.

[0010] Preferably, the top surface of the lower base plate is provided with a plurality of parallel limiting grooves, which extend along the length of the lower base plate to the end face of the lower base plate.

[0011] Preferably, the limiting groove has an avoidance hole on the bottom wall at the outlet end of the feeding channel.

[0012] Preferably, the top surface of the upper cover plate is provided with a plurality of positioning rods that surround the outer edge of the material discharge hole.

[0013] Preferably, the shape of the groove in the push plate is the same as the shape of the corresponding position of the discharge hole.

[0014] Preferably, the clamping mechanism includes a support plate, a second cylinder, and a clamping block. The support plate is fixed to one end of the lower base plate and located on one side of the feed channel outlet. The support plate has a discharge port. The second cylinder is installed on the side of the support plate away from the discharge port. The piston rod of the second cylinder is connected to the clamping block. The clamping block has an arc-shaped groove on its side wall away from the second cylinder.

[0015] This utility model also provides a tapping machine, including a frame, a tapping device, and the automatic feeding tapping fixture. The tapping device is mounted on the frame, and the automatic feeding tapping fixture is mounted below the tapping device. The tapping device includes a tap body, a spindle mounted on the tap body, and a tap screw mounted on the spindle.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: workpieces are continuously fed into the feeding channel through the dropping hole. After the workpiece is clamped by the clamping groove, the push plate is driven by the drive mechanism to move towards the outlet end of the feeding channel. After the push plate pushes the workpiece to the preset position, the clamping mechanism cooperates with the push plate to clamp and position the workpiece. Finally, the workpiece is tapped by the tapping device. Thus, the feeding, clamping, positioning and tapping operations of all workpieces are automatically completed. There is no need for operators to handle and clamp the workpieces, which reduces labor intensity and improves production efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of the tapping machine of this utility model;

[0018] Figure 2 This is a perspective view of the automatic feeding and tapping fixture of this utility model;

[0019] Figure 3 This is an exploded view of the automatic feeding tapping fixture of this utility model;

[0020] Figure 4 This is an exploded view of a partial structure of the automatic feeding and tapping tooling of this utility model;

[0021] Figure 5 This is a perspective view of the bottom plate of this utility model;

[0022] Figure 6 This is a perspective view of the slider of this utility model;

[0023] Figure 7 This is a perspective view of the workpiece of this utility model.

[0024] The markings in the diagram are as follows: 1. Frame; 2. Tap device; 3. Base; 4. Lower base plate; 41. Guide groove; 42. Long strip hole; 43. Limiting groove; 44. Clearance hole; 5. Top cover plate; 51. Drop hole; 52. Through hole; 6. Push plate; 61. Clamping groove; 7. Drive mechanism; 71. First cylinder; 72. Slider; 721. Main body; 722. Guide slide; 8. Clamping mechanism; 81. Support plate; 811. Discharge port; 82. Second cylinder; 83. Clamping block; 9. Workpiece; 91. Protruding foot; 10. Baffle; 11. Feeding channel; 12. Positioning rod; 13. Guide groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 A tapping machine includes a frame 1, a tapping device 2, and an automatic feeding tapping fixture. The tapping device 2 is mounted on the frame 1, and the automatic feeding tapping fixture is positioned below the tapping device 2 for clamping a workpiece 9. The tapping device 2 includes a tap body, a spindle mounted on the tap body, and a tap screw mounted on the spindle. The tap screw taps the workpiece 9 on the automatic feeding tapping fixture. In this embodiment, three spindles and three tap screws are provided. The tapping principle of the tapping device 2 is the same as that of existing tapping machines, which involves tapping through a vertically moving tap screw. The specific principle will not be elaborated here.

[0027] Please see Figure 2-3 An automatic feeding tapping fixture includes a base 3, a lower base plate 4, an upper cover plate 5, a pusher plate 6, a drive mechanism 7, and a clamping mechanism 8. The lower base plate 4 is mounted on the base 3, and two baffles 10 are symmetrically arranged on the top surface of the lower base plate 4. The upper cover plate 5 is connected to the top of the two baffles 10, so that a feeding channel 11 is formed between the lower base plate 4, the two baffles 10, and the upper cover plate 5. The upper cover plate 5 has a drop hole 51 near the entrance end of the feeding channel 11, which is used for the workpiece 9 to fall into the feeding channel 11. The pusher plate 6 is movably arranged in the feeding channel 11, and one end of the pusher plate 6 is provided with a clamping groove 61 corresponding to the drop hole 51, which is used to clamp the workpiece 9. The drive mechanism 7 is arranged on the lower base plate 4, and one end of the drive mechanism 7 is connected to the pusher plate 6, which is used to drive the pusher plate 6 to push the workpiece 9 from the entrance end of the feeding channel 11 to the exit end of the feeding channel 11. The clamping mechanism 8 is located at the outlet end of the feeding channel 11 and works in conjunction with the push plate 6 to clamp the workpiece 9.

[0028] Please see Figure 3-4 During tapping, the drive mechanism 7 first moves the push plate 6 towards the inlet of the feeding channel 11 until the clamping groove 61 is aligned with the discharge hole 51. The workpiece 9 is then placed into the feeding channel 11 through the discharge hole 51, where it is clamped by the clamping groove 61. Next, the drive mechanism 7 moves the push plate 6 towards the outlet of the feeding channel 11. After the push plate pushes the workpiece 9 to a preset position, the clamping mechanism 8 clamps the workpiece 9 at the other end opposite the clamping groove 61. Figure 1 As shown; finally, the workpiece 9 is tapped by the tap screw of the tapping device 2; after the tapping is completed, the clamping mechanism 8 releases the workpiece 9, and the driving mechanism 7 drives the push plate 6 to move towards the inlet end of the feeding channel 11. After the workpiece 9 falls into the clamping groove 61, the driving mechanism 7 drives the push plate 6 to move towards the outlet end of the feeding channel 11 again. After the workpiece 9 moves to the preset position, it will push away the previously tapped workpiece 9; then the clamping mechanism 8 cooperates with the push plate 6 to clamp the workpiece 9 again and perform the tapping operation again; in this cycle, the feeding, clamping and positioning and tapping operations of all workpieces 9 can be completed automatically, without the need for operators to handle and clamp the workpieces 9, reducing labor intensity and improving production efficiency.

[0029] Please see Figure 4 In this embodiment, the shape of the clamping groove 61 of the push plate 6 is the same as the shape of the corresponding position of the dropping hole 51, so that the workpiece 9 falling from the dropping hole 51 into the feeding channel 11 can be stably clamped by the clamping groove 61.

[0030] Please see Figure 2The top surface of the upper cover plate 5 is vertically provided with a plurality of positioning rods 12 surrounding the outer edge of the material feeding hole 51. The positioning rods 12 are used to stack workpieces 9, and the positioning rods 12 have a positioning function for the workpieces 9, so as to facilitate the precise clamping of the workpieces 9. In this embodiment, the number of positioning rods 12 is 6, but this utility model does not limit the number of positioning rods 12. 6 is just a preferred embodiment. 3, 4 or other numbers of positioning rods 12 can also be provided. The specific number can be set according to the actual shape of the workpiece, as long as the positioning effect of the workpiece 9 is achieved.

[0031] Please see Figure 2-3 The bottom surface of the lower base plate 4 has two support plates (not shown) fixed to the base 3 at its two edges. The two support plates, the top surface of the base 3, and the bottom surface of the lower base plate 4 form an active space for the drive mechanism 7 to move. The drive mechanism 7 includes a first cylinder 71 fixed to the lower base plate 4 and a slider 72 connected to the piston rod of the first cylinder 71. The slider 72 is located in the active space and is connected to the push plate 6. The first cylinder 71 is used to drive the slider 72 and the push plate 6 to move. In this embodiment, a fixing block (not shown) is provided on one side of the bottom of the lower base plate 4, and the first cylinder 71 is fixedly installed on the fixing block.

[0032] Please see Figure 5 The bottom plate 4 has two symmetrically distributed guide grooves 41 on its top surface. Each guide groove 41 has an elongated hole 42 along its length on its bottom wall. (See also...) Figure 6 The slider 72 includes a main body 721 disposed at the bottom of the lower base plate 4 and guide parts 722 symmetrically disposed on the main body 721. The main body 721 is connected to the piston rod of the first cylinder 71. The guide parts 722 are T-shaped, with their top ends movably disposed in the guide groove 41 and connected to the bottom of the push plate 6. The bottom end of the guide parts 722 passes through the elongated hole 42 and connects to the main body 721. During feeding, when the first cylinder 71 drives the slider 72 and the push plate 6 to move, the guide groove 41 and the elongated hole 42 guide and limit the sliding of the guide parts 722 of the slider 72, making the movement of the slider 72 more stable and preventing the push plate 6 from deviating during the pushing of the workpiece 9.

[0033] Please see Figure 5 The top surface of the lower base plate 4 is provided with several parallel limiting grooves 43, which extend along the length of the lower base plate 4 to the end face of the lower base plate 4; please refer to Figure 7 The bottom surface of the workpiece 9 has a plurality of protrusions 91 that are adapted to the limiting groove 43. Please refer to [link / reference]. Figure 4When the workpiece 9 falls from the drop hole 51 into the feeding channel 11, the protrusion 91 of the workpiece 9 just extends into the limiting groove 43. During the process of the workpiece 9 being pushed by the push plate 6, the limiting groove 43 positions the workpiece 9, so that the workpiece 9 moves accurately from the inlet end of the feeding channel 11 to below the tap device 2 at the outlet end of the feeding channel 11, avoiding the workpiece 9 from deviating during the movement, which helps to improve the tap accuracy.

[0034] Please see Figure 5 The limiting groove 43 is located on the bottom wall of the feed channel 11 outlet end and has a clearance hole 44. The clearance hole 44 corresponds to the protrusion 91 vertically. The workpiece 9 has a drill hole for tapping the screw at the position corresponding to the protrusion 91. The clearance hole 44 is set to provide space for the screw to move downward and avoid the screw from directly contacting the bottom plate 4.

[0035] In this embodiment, the number of limiting grooves 43, protrusions 91 and clearance holes 44 is the same, which is 3. However, this utility model does not limit the number of limiting grooves 43, protrusions 91 and clearance holes 44. 3 is just a preferred embodiment. 4 or other numbers can also be set. Specifically, it can be set according to the number of protrusions 91 of the workpiece 9.

[0036] Please see Figure 3 The clamping mechanism 8 includes a support plate 81, a second cylinder 82, and a clamping block 83. The support plate 81 is fixed to one end of the lower base plate 4, located on one side of the outlet end of the feeding channel 11. The support plate 81 has a discharge port 811. The second cylinder 82 is installed on the side of the support plate 81 away from the discharge port 811, and the piston rod of the second cylinder 82 is connected to the clamping block 83. The side wall of the clamping block 83 opposite to the second cylinder 82 has an arc-shaped groove. The shape of the arc-shaped groove is adapted to the shape of the workpiece 9. The workpiece 9 is clamped by the cooperation of the arc-shaped groove with the clamping groove 61 of the push plate 6.

[0037] Please see Figure 3 In this embodiment, a guide groove 13 is inclined below the pallet 81. The upper two sides of the guide groove 13 are connected to the inner wall of the discharge port 811 of the pallet 81, and are used to receive the workpiece 9 falling from the outlet end of the feeding channel 11.

[0038] Please see Figure 3-4 A through hole 52 is provided on the top surface of the upper cover plate 5 away from the material drop hole 51, so that the tap screw of the tap device 2 can pass through.

[0039] To replace manual clamping and improve production efficiency, the working process of clamping workpiece 9 in this utility model is as follows: After a sufficient number of workpieces 9 are stacked between the six positioning rods 12, the first cylinder 71 drives the push plate 6 to move towards the inlet end of the feeding channel 11 via the slider 72, so that the clamping groove 61 is aligned with the dropping hole 51; the workpiece 9 falls into the feeding channel 11 through the dropping hole 51. After the workpiece 9 is clamped by the clamping groove 61, the first cylinder 71 drives the push plate 6 to move towards the outlet end of the feeding channel 11. After the push plate 6 pushes the workpiece 9 below the tapping device 2, the second cylinder 82 drives the clamping block 83 to clamp the workpiece 9 at the other end opposite the clamping groove 61. Figure 1 As shown; finally, the tap screw of the tapping device 2 moves downward and taps the workpiece 9; after tapping is completed, the tap screw of the tapping device 2 moves upward, and at the same time, the second cylinder 82 drives the clamping block 83 to release the workpiece 9, and the first cylinder 71 drives the push plate 6 to move towards the inlet end of the feeding channel 11. After the workpiece 9 falls into the clamping groove 61 again, the first cylinder 71 drives the push plate 6 to move towards the outlet end of the feeding channel 11. When the workpiece 9 moves to the position below the tapping device 2, it will push away the previously tapped workpiece 9. The workpiece 9 falls from the discharge port 811 of the support plate 81 into the guide groove 13; then the second cylinder 82 drives the clamping block 83 to cooperate with the push plate 6 to clamp the workpiece 9 again, and finally the tapping device 2 performs the tapping operation again; in this cycle, the workpieces 9 stacked between the positioning rods 12 can be moved down layer by layer into the feeding channel 11, and the moving workpieces 9 are pushed to the position of the tapping device 2 by the push plate 6 for tapping operation.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding tapping fixture, characterized in that: The device includes a base (3), a lower base plate (4), an upper cover plate (5), a push plate (6), a drive mechanism (7), and a clamping mechanism (8). The lower base plate (4) is mounted on the base (3). Two baffles (10) are symmetrically arranged on the top surface of the lower base plate (4). The upper cover plate (5) is connected to the top of the two baffles (10) so that a feeding channel (11) is formed between the lower base plate (4), the two baffles (10), and the upper cover plate (5). The upper cover plate (5) has a discharge hole (51) near the entrance end of the feeding channel (11). The push plate (6) is movably arranged in the feeding channel (11). One end of the drive mechanism (7) is connected to the push plate (6). The clamping mechanism (8) is arranged at the exit end of the feeding channel (11).

2. The automatic feeding and tapping fixture according to claim 1, characterized in that: The drive mechanism (7) includes a first cylinder (71) fixed on the lower base plate (4) and a slider (72) connected to the piston rod of the first cylinder (71), the slider (72) being connected to the push plate (6).

3. The automatic feeding tapping fixture according to claim 2, characterized in that: The bottom plate (4) has two symmetrically distributed guide grooves (41) on its top surface. Each guide groove (41) has an elongated hole (42) on its bottom wall along its length.

4. The automatic feeding tapping fixture according to claim 3, characterized in that: The slider (72) includes a main body (721) disposed at the bottom of the lower base plate (4) and guide parts (722) symmetrically disposed on the main body (721). The main body (721) is connected to the piston rod of the first cylinder (71). The guide parts (722) are T-shaped. The top end of the guide parts (722) is movably disposed in the guide groove (41) and connected to the bottom of the push plate (6). The bottom end of the guide parts (722) passes through the elongated hole (42) and is connected to the main body (721).

5. The automatic feeding tapping fixture according to claim 1, characterized in that: The bottom plate (4) has several parallel limiting grooves (43) on its top surface, and the limiting grooves (43) extend along the length of the bottom plate (4) to the end face of the bottom plate (4).

6. The automatic feeding tapping fixture according to claim 5, characterized in that: The limiting groove (43) is provided with a clearance hole (44) on the bottom wall at the outlet end of the feeding channel (11).

7. The automatic feeding tapping fixture according to claim 1, characterized in that: The top surface of the upper cover plate (5) is provided with several positioning rods (12) that surround the outer edge of the material drop hole (51).

8. The automatic feeding tapping fixture according to claim 1, characterized in that: The push plate (6) has a clamping groove (61) at one end that corresponds to the material discharge hole (51) above and below. The shape of the clamping groove (61) of the push plate (6) is the same as the shape of the corresponding position of the material discharge hole (51).

9. The automatic feeding tapping fixture according to claim 1, characterized in that: The clamping mechanism (8) includes a support plate (81), a second cylinder (82), and a clamping block (83). The support plate (81) is fixed to one end of the lower base plate (4) and located on one side of the outlet end of the feeding channel (11). The support plate (81) has a discharge port (811). The second cylinder (82) is installed on the side of the support plate (81) away from the discharge port (811). The piston rod of the second cylinder (82) is connected to the clamping block (83). The clamping block (83) has an arc-shaped groove on the side wall away from the second cylinder (82).

10. A tapping machine, characterized in that: The device includes a frame (1), a tapping device (2), and an automatic feeding tapping fixture as described in any one of claims 1-9. The tapping device (2) is mounted on the frame (1), and the automatic feeding tapping fixture is mounted below the tapping device (2). The tapping device (2) includes a tap body, a spindle mounted on the tap body, and a tap screw mounted on the spindle.

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