Machining device

Abstract

The utility model provides a machining device and belongs to the technical field of machinery. The problem that applicability is insufficient due to the fact that multiple hole shrinkage of rod parts is completed through one-time clamping is solved. The machining device comprises a rack and a clamp which is fixed to the rack and can be opened and closed, a movable base is arranged on the rack and located in front of the clamp, a hydraulic cylinder capable of driving the movable base to move towards the clamp is arranged on the rack, the movable base is connected with a die base and a driving motor, and the die base is driven by the driving motor to move up and down relative to the movable base. The die holder is located on the rear side of the movable seat, a plurality of mounting cavities are formed in the rear side of the die holder in the vertical direction, and extrusion die heads are detachably connected into the mounting cavities. The device has the advantages of high production efficiency, wide applicability and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical technical field relates to a processing device. BACKGROUND

[0002] In the current mechanical industry, many rod parts will require a position with a reduced diameter when in use. For the reduced diameter, it is more common to use a punch press to realize it, and the rod part is fixed on the clamp of the punch press, and then the die head is pressed down to extrude the rod part. Generally speaking, there is only one die head on a punch press, and one die head can only correspond to the reduction of one position, and when multiple reductions are required on the rod part, the rod part needs to be processed on multiple punch presses in turn. In this way, the rod part needs to be clamped repeatedly, which not only has low production efficiency, but also cannot guarantee the processing accuracy.

[0003] In view of this situation, there are die heads on the market that can extrude multiple reduced diameter positions on the rod part at one time, such as the extrusion and reduction composite reduction die disclosed in patent application No. 202320700020.0. It only needs to clamp the rod part once. However, if the die head is of an integral structure, the shape and size of the die cavity cannot be changed, and only a single requirement can be met, so there is a problem of insufficient applicability. UTILITY MODEL CONTENT

[0004] The utility model aims at the above-mentioned problems existing in the prior art, and provides a processing device, which solves the problem of insufficient applicability caused by one-time clamping of multiple reductions of rod parts.

[0005] The purpose of the utility model can be realized by the following technical schemes:

[0006] A processing device, comprising a rack and a clamp fixed on the rack and capable of being opened and closed, characterized in that the rack is provided with a movable seat located in front of the clamp, the rack is provided with a hydraulic cylinder capable of driving the movable seat to move towards the clamp, the movable seat is connected with a die holder and a driving motor, the die holder is driven by the driving motor to move up and down relative to the movable seat, the die holder is located at the rear side of the movable seat, a plurality of installation cavities are provided at the rear side of the die holder in the vertical direction, and each installation cavity is detachably connected with an extrusion die head.

[0007] Before processing, the corresponding extrusion die is installed and fixed in the installation cavity according to the size of the rod part to be extruded. During processing, the rod part is clamped and fixed on the clamp. Then the piston rod of the hydraulic cylinder is pushed out to move the movable seat towards the clamp, and the rod part is extruded by the extrusion die in the die holder on the rear side of the movable seat. After completing one extrusion process, the die holder is driven to move vertically along the output shaft of the driving motor to switch the extrusion die, thereby realizing multi-extrusion of the rod part. The processing device moves the die holder up and down, and the installation cavity is arranged in the vertical direction on the die holder, and the extrusion die is installed and fixed in each installation cavity, so that multi-extrusion can be completed with the rod part clamped only once. Since repeated clamping and disassembly is not required, the processing precision is guaranteed. At the same time, each extrusion die corresponds to one size reduction, which is equivalent to the combined use of each extrusion die, and each extrusion die is detachably connected in the installation cavity. Thus, one or more extrusion dies can be replaced to adapt to the processing of rod parts with different size reductions and multi-size reductions, thereby improving the applicability.

[0008] In the above processing device, the side of the die holder is provided with a plurality of locking holes, each of which is in communication with each installation cavity, and a locking screw is threadedly connected in each locking hole and abuts against the side of the extrusion die.

[0009] After the extrusion die is placed in the installation cavity, it is locked by the locking screw. When the extrusion die needs to be replaced, the locking screw is loosened, and then the extrusion die is removed and replaced with a new one.

[0010] In the above processing device, the rear side of the movable seat is provided with a vertical guide straight groove, the die holder is in the form of a long block, the die holder is located in the vertical guide straight groove, the driving motor is fixed in the upper end of the movable seat, and the driving motor is connected with the die holder through a ball screw mechanism. The die holder extends out of the vertical guide straight groove, and the locking hole is located in the side of the die holder extending out of the vertical guide straight groove.

[0011] The rear side of the movable seat is provided with a vertical guide straight groove, the die holder is in the form of a long block, and the die holder is located in the vertical guide straight groove. In this way, the die holder will not rotate relative to the movable seat, so that the driving motor can drive the die holder to move up and down through the ball screw mechanism. The die holder extends out of the vertical guide straight groove, and the locking hole is located in the side of the die holder extending out of the vertical guide straight groove, which makes it possible to replace the extrusion die without dismounting the die holder from the vertical guide straight groove.

[0012] In the above processing device, the left and right sides of the movable seat are respectively fixedly connected with sliding seats, the frame is fixedly connected with two guide rails, the two sliding seats are respectively slidably connected on the two guide rails, and the hydraulic cylinder is located in front of the movable seat and the piston rod of the hydraulic cylinder is fixedly connected with the movable seat.

[0013] The movable seat can slide on the frame through the connection between the sliding seat and the guide rail, while the piston rod of the hydraulic cylinder is fixedly connected to the movable seat. Thus, when the piston rod of the hydraulic cylinder extends, it can drive the movable seat to move closer to the clamp and apply extrusion force to the rod-like parts.

[0014] In one of the aforementioned processing devices, the frame is provided with a backstop bar along the front-rear direction. The backstop bar is threadedly connected to the frame and is located behind the fixture.

[0015] After the rod-like parts are clamped by the fixture, the rod-like parts abut against the anti-reverse rod. This anti-reverse rod can be used to hold the rod-like parts in place to prevent them from moving backward when they are squeezed.

[0016] In the aforementioned processing device, a receiving plate is fixedly connected to the frame. The receiving plate is arranged along the front-to-back direction and is located on one side of the fixture. A clearance notch is provided on the side of the receiving plate near the fixture. A gripping assembly is provided on the frame. The gripping assembly includes a mounting base, a crossbeam fixed to the top of the mounting base, a vertical beam that can move along the crossbeam, a connecting base that can move along the vertical beam, and a gripper fixed to the bottom of the connecting base. The crossbeam is arranged along the left-to-right direction, and the opening and closing direction of the fixture is the left-to-right direction. The gripper is located at the clearance notch.

[0017] Initially, the gripper is positioned at the clearance notch and in an open state. The rod-shaped part is fed into the receiving plate, then the gripper tightens to grasp it. The connecting seat then moves upward along the vertical beam, followed by the vertical beam moving along the horizontal beam to the top of the fixture. Finally, the connecting seat moves downward along the vertical beam, moving the rod-shaped part into the opened fixture. This setup enables automatic gripping and feeding of rod-shaped parts, further improving production efficiency.

[0018] In the aforementioned processing device, a feeding conveyor mechanism is provided on the side of the frame along the front-rear direction. The feeding conveyor mechanism includes a bracket fixed on the frame and a feeding conveyor belt on the bracket. The processing device also includes a pusher plate and a guide plate, which are located on opposite sides of the front end of the feeding conveyor belt. The guide plate is arranged along the front-rear direction and fixed on the frame. The guide plate is located behind the receiving plate. A top-loading cylinder is also fixed on the frame. The piston rod end of the top-loading cylinder is connected to a top-loading rod, which is located behind the guide plate. The pusher plate is vertically arranged and its lower end is slightly higher than the feeding conveyor belt. A pusher cylinder that can drive the pusher plate to move toward the guide plate is fixed on the bracket. A baffle is fixedly connected to the front of the feeding conveyor belt on the bracket.

[0019] In practice, the feeding conveyor belt can be matched with the elevator, the rod-shaped parts are lifted and transported by the elevator in the posture of the spherical head facing backward to the feeding conveyor belt, then the rod-shaped parts are transported by the feeding conveyor belt, after the rod-shaped parts abut against the baffle, the piston rod of the pushing cylinder extends so that the pushing plate pushes the rod-shaped parts into the guide plate. Then, the piston rod of the top cylinder extends so that the top rod pushes the rod-shaped parts into the receiving plate, finally the rod-shaped parts are grabbed and transported to the clamp by the grabbing assembly for clamping. Through the above setting, the production efficiency can be further improved.

[0020] In the machining device, the machine frame is fixedly connected with a discharging chute below the clamp, and the machine frame is provided with a discharging conveyor belt at the bottom of the discharging chute.

[0021] After the machining is completed, the clamp is opened to release the rod-shaped parts, the rod-shaped parts fall into the discharging conveyor belt through the discharging chute, and then are transported to outside of the machine frame by the discharging conveyor belt.

[0022] Compared with the prior art, the machining device has the following advantages:

[0023] 1. The installation cavities are arranged in the vertical direction on the die holder, each installation cavity is fixedly installed with an extrusion die head, so that multiple extrusions can be completed in one clamping of the rod-shaped parts, and the machining precision is ensured because repeated clamping and dismounting is not required.

[0024] 2. Each extrusion die head corresponds to one diameter reduction, which is equivalent to the combined use of the extrusion die heads, and each extrusion die head is detachably connected in the installation cavity, so that one or more extrusion die heads can be replaced to adapt to the machining of rod-shaped parts with different diameter reduction sizes and multiple diameter reductions, and the applicability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a perspective view of the machining device.

[0026] Figure 2 is another perspective view of the machining device from another angle.

[0027] Figure 3 is a perspective view of the machine frame with one side plate removed.

[0028] Figure 4 is a perspective view of the movable seat.

[0029] Figure 5 is a perspective view of the die holder.

[0030] Figure 6 is a sectional view of the die holder.

[0031] Figure 7is the perspective view of the rack after removing the movable seat and the hydraulic cylinder.

[0032] Figure 8 is the cooperation schematic view among the grabbing assembly, the receiving plate, the material guiding plate and the feeding conveying mechanism.

[0033] Figure 9 is the cooperation schematic view among the receiving plate, the material guiding plate and the feeding conveying mechanism.

[0034] Figure 10 is the sectional view of the rack after removing the movable seat, the hydraulic cylinder, the grabbing assembly, the receiving plate, the material guiding plate and the feeding conveying mechanism.

[0035] In the figure, 1 is the rack, 2 is the clamp, 2a is the movable clamp block, 2b is the static clamp block, 3 is the movable seat, 3a is the guide straight slot, 4 is the hydraulic cylinder, 5 is the sliding seat, 6 is the guide rail, 7 is the mold base, 7a is the installation cavity, 7b is the locking hole, 8 is the driving motor, 9 is the extrusion die head, 10 is the locking screw, 11 is the ball screw mechanism, 12 is the guide rod, 13 is the retreat stopping rod, 14 is the receiving plate, 14a is the position giving gap, 15 is the grabbing assembly, 16 is the mounting seat, 17 is the cross beam, 18 is the vertical beam, 19 is the connecting seat, 20 is the hand claw, 21 is the feeding conveying mechanism, 21a is the support, 21b is the feeding conveying belt, 22 is the material pushing plate, 23 is the material guiding plate, 24 is the material lifting cylinder, 25 is the material lifting rod, 26 is the material pushing cylinder, 27 is the baffle, 28 is the material discharging groove, and 29 is the material discharging conveying belt. DETAILED DESCRIPTION

[0036] The following is a specific embodiment of the present application combined with the drawings, which further describes the technical scheme of the present application, but the present application is not limited to these embodiments.

[0037] As Figure 1 , Figure 2 and Figure 3As shown in the figure, a processing device includes a rack 1 and a clamp 2 fixed on the rack 1 and capable of opening and closing, wherein the clamp 2 includes a static clamp block 2b and a dynamic clamp block 2a, the static clamp block 2b is fixedly connected with the rack 1, and the dynamic clamp block 2a can be close to or away from the static clamp block 2b. The rack 1 is provided with a movable seat 3, the movable seat 3 is located in front of the clamp 2, the rack 1 is provided with a hydraulic cylinder 4 capable of driving the movable seat 3 to move towards the clamp 2, wherein the left and right sides of the movable seat 3 are respectively fixedly connected with sliding seats 5, the rack 1 is fixedly connected with two guide rails 6, the guide rails 6 are arranged along the front and back directions and are parallel to each other, the two sliding seats 5 are respectively slidably connected on the two guide rails 6, and the hydraulic cylinder 4 is located in front of the movable seat 3 and the piston rod of the hydraulic cylinder 4 is fixedly connected with the movable seat 3. The movable seat 3 is connected with a die seat 7 and a driving motor 8, the die seat 7 is driven by the driving motor 8 and can move up and down relative to the movable seat 3, the die seat 7 is located at the rear side of the movable seat 3, the rear side of the die seat 7 is provided with a plurality of installation cavities 7a along the vertical direction, and each installation cavity 7a is detachably connected with an extrusion die head 9.

[0038] As shown in the figure, Figure 4 , Figure 5 and Figure 6 , wherein the side of the die seat 7 is provided with a plurality of locking holes 7b, each locking hole 7b is respectively communicated with each installation cavity 7a, each locking hole 7b is threadedly connected with a locking screw 10, and the locking screw 10 is located on the side of the extrusion die head 9. The rear side of the movable seat 3 is provided with a guide straight groove 3a along the vertical direction, the die seat 7 is in the form of a long block, the die seat 7 is located in the guide straight groove 3a, the driving motor 8 is fixed in the upper end of the movable seat 3 and the driving motor 8 is connected with the die seat 7 through a ball screw mechanism 11, the die seat 7 extends out of the guide straight groove 3a, and the locking hole 7b is located on the side of the die seat 7 extending out of the guide straight groove 3a. A guide rod 12 is also fixed in the guide straight groove 3a, the guide rod 12 passes through the die seat 7, the die seat 7 extends out of the guide straight groove 3a, and the locking hole 7b is located on the side of the die seat 7 extending out of the guide straight groove 3a. The rack 1 is provided with a retreat stop rod 13 along the front and back directions, the retreat stop rod 13 is threadedly connected with the rack 1, and the retreat stop rod 13 is located behind the clamp 2.

[0039] Further, as shown in the figure, Figure 8 , Figure 9 and Figure 10As shown, the rack 1 is fixedly connected with a receiving plate 14, the receiving plate 14 is arranged along the front-rear direction, and the receiving plate 14 is located at one side of the clamp 2. The receiving plate 14 is provided with a gap 14a at one side close to the clamp 2. The rack 1 is provided with a grabbing assembly 15, the grabbing assembly 15 comprises a mounting seat 16, a cross beam 17 fixed to the top of the mounting seat 16, a vertical beam 18 movable along the cross beam 17, a connecting seat 19 movable along the vertical beam 18, and a hand claw 20 fixed to the bottom of the connecting seat 19. The cross beam 17 is arranged along the left-right direction, and the opening and closing direction of the clamp 2 is the left-right direction. The hand claw 20 is located at the gap 14a and in front of the clamp 2. The side of the rack 1 is provided with a feeding conveying mechanism 21 along the front-rear direction, the feeding conveying mechanism 21 comprises a support 21a fixed to the rack 1 and a feeding conveying belt 21b arranged on the support 21a. The feeding conveying mechanism 21 is specifically a chain conveyor. The processing device further comprises a pushing plate 22 and a guiding plate 23. The pushing plate 22 and the guiding plate 23 are respectively located at both sides of the front end of the feeding conveying belt 21b. The guiding plate 23 is arranged along the front-rear direction and fixed to the rack 1. The guiding plate 23 is located behind the receiving plate 14. The rack 1 is further fixed with a lifting cylinder 24. The piston rod end of the lifting cylinder 24 is connected with a lifting rod 25. The lifting rod 25 is located behind the guiding plate 23. The pushing plate 22 is vertically arranged. The lower end of the pushing plate 22 is slightly higher than the feeding conveying belt 21b. The support 21a is fixed with a pushing cylinder 26. The pushing plate 22 is fixed with the piston rod of the pushing cylinder 26. The piston rod of the pushing cylinder 26 is pushed out to move the pushing plate 22 towards the guiding plate 23. The support 21a is fixed with a baffle 27 in front of the feeding conveying belt 21b. The rack 1 is fixedly connected with a discharging chute 28. The discharging chute 28 is located below the clamp 2. The rack 1 is provided with a discharging conveying belt 29 at the bottom of the discharging chute 28.

[0040] The rod part is conveyed by the feeding conveying belt 21b. After the rod part abuts against the baffle 27, the piston rod of the pushing cylinder 26 is extended to push the rod part into the guiding plate 23 by the pushing plate 22. Then, the piston rod of the lifting cylinder 24 is extended to push the rod part into the receiving plate 14 by the lifting rod 25. Initially, the hand claw 20 of the grabbing assembly 15 is located at the gap 14a and in an open state. After the rod part is pushed into the receiving plate 14, the hand claw 20 is closed to grab the rod part. Then, the connecting seat 19 moves upwards along the vertical beam 18. Then, the vertical beam 18 moves along the cross beam 17 to above the clamp 2. Finally, the connecting seat 19 moves downwards along the vertical beam 18 to convey the rod part between the static clamp block 2b and the dynamic clamp block 2a. Then, the dynamic clamp block 2a moves towards the static clamp block 2b to clamp and fix the rod part. The hand claw 20 is released from the rod part and moves to the initial position.

[0041] Then, the piston rod of the hydraulic cylinder 4 pushes out to move the movable seat 3 towards the clamp 2, and the rod part is extruded by the extrusion die 9 in the die seat 7 at the rear side of the movable seat 3. During the extrusion, the rod part is abutted against the stop rod 13, so that the backward movement of the rod part during the extrusion is avoided. After the completion of one extrusion process, the die seat 7 is driven to move vertically by the rotation of the output shaft of the driving motor 8, the switching of the extrusion die 9 is performed, so that the multiple extrusion reductions of the rod part are realized. After the machining is completed, the clamp 2 releases the rod part, the rod part falls and drops into the discharge chute 28 and then falls onto the discharge conveying belt 29, and then the rod part is conveyed out of the machine frame 1 by the discharge conveying belt 29.

[0042] The machining device can complete the multiple extrusions under the condition that the rod part is clamped only once, and the accumulation of machining errors is avoided due to the clamping only once.

[0043] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A processing apparatus comprising a frame (1) and a clamp (2) fixed to the frame (1) and capable of opening and closing, characterized in that, The movable seat (3) is located in front of the clamp (2), the movable seat (3) is connected with a die seat (7) and a driving motor (8), the die seat (7) is driven by the driving motor (8) and can move up and down relative to the movable seat (3), the die seat (7) is located at the rear side of the movable seat (3), and the rear side of the die seat (7) is provided with a plurality of installation cavities (7a) in the vertical direction.

2. A processing apparatus according to claim 1, wherein The side of the die seat (7) is provided with a plurality of locking holes (7b), each locking hole (7b) is communicated with each installation cavity (7a), each locking hole (7b) is threadedly connected with a locking screw (10), and the locking screw (10) is located on the side of the extrusion die head (9).

3. A processing apparatus according to claim 2, wherein The rear side of the movable seat (3) is provided with a guide straight groove (3a) in the vertical direction, the die seat (7) is long and block-shaped, the die seat (7) is located in the guide straight groove (3a), the driving motor (8) is fixed in the upper end of the movable seat (3) and connected with the die seat (7) through a ball screw mechanism (11), the die seat (7) extends out of the guide straight groove (3a), and the locking hole (7b) is located on the side of the die seat (7) extending out of the guide straight groove (3a).

4. A processing apparatus according to claim 3, wherein The left and right sides of the movable seat (3) are fixedly connected with sliding seats (5), the rack (1) is fixedly connected with two guide rails (6), the two sliding seats (5) are slidingly connected to the two guide rails (6), and the hydraulic cylinder (4) is located in front of the movable seat (3) and the piston rod of the hydraulic cylinder (4) is fixedly connected with the movable seat (3).

5. A processing apparatus according to claim 1 or 2 or 3 or 4, wherein, The rack (1) is provided with a retreat stop rod (13) in the front-rear direction, the retreat stop rod (13) is threadedly connected with the rack (1), and the retreat stop rod (13) is located behind the clamp (2).

6. A processing apparatus according to claim 1 or 2 or 3 or 4, wherein, The rack (1) is fixedly connected with a material receiving plate (14), the material receiving plate (14) is arranged in the front-rear direction, the material receiving plate (14) is located on one side of the clamp (2), the material receiving plate (14) is provided with a gap notch (14a) on the side close to the clamp (2), the rack (1) is provided with a grabbing assembly (15), the grabbing assembly (15) comprises a mounting seat (16), a cross beam (17) fixed to the top of the mounting seat (16), a vertical beam (18) capable of moving along the cross beam (17), a connecting seat (19) capable of moving along the vertical beam (18), and a hand claw (20) fixed to the bottom of the connecting seat (19), the cross beam (17) is arranged in the left-right direction, the opening and closing direction of the clamp (2) is the left-right direction, and the hand claw (20) is located at the gap notch (14a).

7. A processing apparatus according to claim 6, wherein The side of the rack (1) is provided with an upper feeding conveying mechanism (21) in the front-rear direction, the upper feeding conveying mechanism (21) comprises a support (21a) fixed on the rack (1) and an upper feeding conveying belt (21b) arranged on the support (21a), the processing device further comprises a pushing plate (22) and a leading plate (23), the pushing plate (22) and the leading plate (23) are respectively located on the two sides of the front end of the upper feeding conveying belt (21b), the leading plate (23) is arranged and fixed on the rack (1) in the front-rear direction, the leading plate (23) is located behind the receiving plate (14), the rack (1) is further fixed with a material ejecting cylinder (24), the piston rod end of the material ejecting cylinder (24) is connected with a material ejecting rod (25), the material ejecting rod (25) is located behind the leading plate (23), the pushing plate (22) is vertically arranged and the lower end of the pushing plate (22) is slightly higher than the upper feeding conveying belt (21b), the support (21a) is fixed with a material pushing cylinder (26) which can drive the pushing plate (22) to move towards the leading plate (23), the support (21a) is fixedly connected with a baffle (27) in front of the upper feeding conveying belt (21b).

8. A processing apparatus according to claim 1 or 2 or 3 or 4, wherein, The rack (1) is fixedly connected with a lower discharging chute (28), the lower discharging chute (28) is located below the clamp (2), the rack (1) is provided with a lower discharging conveying belt (29) at the bottom of the lower discharging chute (28).

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