Numerical control squeeze riveter for sheet metal machining

Abstract

The utility model relates to a numerical control squeeze riveter for sheet metal working, which comprises a sliding seat, a lifting seat and a base, the sliding seat can horizontally slide along a track on the base, the lifting seat is arranged at the upper end of the sliding seat and can vertically lift relative to the sliding seat, and a squeeze riveting bottom column is fixedly arranged at one end of the track on the base; a rotary fixing assembly is arranged on the lifting seat and comprises a rotating shaft and a fixing part, the rotating shaft is vertically arranged, the bottom end of the rotating shaft is connected with a motor, the fixing part is fixedly arranged at the top end of the rotating shaft, and the fixing part is used for fixing a sheet metal part; when the sliding base slides to the end, provided with the pressing rivet bottom column, of the rail, the fixing piece abuts against the pressing rivet bottom column. When the lifting base abuts against the sliding base, the top end of the fixing piece is flush with the top end of the rivet pressing bottom column. According to the utility model, the single-layer sliding rail is adopted to complete the riveting operation of the sheet metal part, the structure is simple, the complex structure of using a double-layer sliding rail is avoided, the size of the riveting press is compact, and the purpose of accurate feeding can be achieved at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of riveting machines, in particular to a numerically controlled riveting machine for sheet metal processing. Background Art

[0002] Chinese Patent Application No. 201810514742.4 discloses a numerically controlled riveting machine. This document discloses the coordinated cooperation of a first driver, a first transfer seat, a second driver, a second transfer seat and a controller to realize the sliding of a workbench on the X-axis and the Y-axis, so that each riveting position of the workpiece on the workbench can match the riveting device on the cross beam of the gantry, achieving the purpose of numerically controlled automatic riveting.

[0003] Another Chinese Patent Application No. 202222839182.4 discloses a numerically controlled riveting machine. This document discloses that the front and back movement of a sheet is fixed through a second guiding mechanism and coordinated with the second guiding mechanism and guide wheels, and the left and right movement of the sheet is carried out through a first guiding mechanism to complete the riveting operation of the sheet.

[0004] When the numerically controlled riveting machines of the above disclosed patent documents perform automated numerically controlled riveting operations, a double-layer slide rail or a structure similar to a slide rail is required to adjust the position of the workpiece, resulting in a complex overall structure; the two mutually perpendicular rails also simultaneously occupy the front, back, left and right spaces in the horizontal position of the riveting workbench, resulting in a relatively large overall volume of the riveting machine. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a numerically controlled riveting machine for sheet metal processing to solve the above problems existing in the prior art.

[0006] To solve the above problems, the utility model provides a numerically controlled riveting machine for sheet metal processing, which includes a sliding seat, a lifting seat and a base. The sliding seat can slide horizontally along the rail on the base. The lifting seat is arranged at the upper end of the sliding seat and can vertically lift relative to the sliding seat. A riveting bottom column is fixedly arranged at one end of the rail on the base; a rotary fixing component is arranged on the lifting seat. The rotary fixing component includes a set rotating shaft and a fixing piece. The rotating shaft is arranged vertically. The bottom end of the rotating shaft is connected with a motor. The fixing piece is fixedly arranged at the top end of the rotating shaft and is used for fixing the sheet metal part; when the sliding seat slides to the end of the rail where the riveting bottom column is arranged, the fixing piece abuts against the riveting bottom column; when the lifting seat abuts against the sliding seat, the top end of the fixing piece is flush with the top end of the riveting bottom column.

[0007] The numerically controlled riveting machine for sheet metal processing provided by the utility model also has the following technical features:

[0008] Further, a lead screw is arranged in the rail. The lead screw is connected with a driving motor. The lead screw passes through the slider on the sliding seat. When the lead screw rotates, it drives the sliding seat to slide.

[0009] Further, a lifting cylinder is fixedly penetrated through the middle part of the sliding seat, and the output shaft of the lifting cylinder is fixedly connected to the bottom end surface of the lifting seat; guiding columns are fixedly arranged around the sliding seat, the guiding columns penetrate through the lifting seat, the guiding columns are retractable multi-stage telescopic columns, and the top ends of the guiding columns are fixedly connected to the lifting seat.

[0010] Further, a motor groove for avoiding the motor is arranged on the sliding seat, and the motor is fixedly arranged at the bottom of the lifting seat.

[0011] Further, an avoidance groove for avoiding the lifting cylinder and the motor is arranged on the base.

[0012] Further, two tracks are arranged, and the tracks are arranged on both sides of the avoidance groove.

[0013] Further, the rotation fixing assembly further includes a bearing sleeve, the bearing sleeve is fixedly arranged on the upper surface of the lifting seat, and the bearing sleeve sleeves the side wall of the rotating shaft.

[0014] Further, the fixing member is an electromagnetic block, and the top end surface of the electromagnetic block can adsorb the sheet metal part when electrified.

[0015] Further, the rotation fixing assembly further includes a metal clamping block, and the metal clamping block cooperates with the electromagnetic block to fix the sheet metal part.

[0016] Further, the fixing member is cylindrical, and the rotating shaft and the fixing member are coaxially arranged.

[0017] The utility model has the following beneficial effects: The device can complete the riveting operation on the sheet metal part by using a single-layer slide rail, has a simple structure, avoids the complex structure of using a double-layer slide rail, makes the volume of the riveting machine compact, and can also achieve the purpose of accurate feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the utility model;

[0019] Figure 2 is Figure 1 the detail view at C in

[0020] Figure 3 is the structural solid diagram of the lifting seat, the sliding seat and the rotation fixing assembly of the utility model;

[0021] Figure 4 is Figure 3 the structural decomposition schematic diagram of

[0022] Figure 5 is the structural decomposition schematic diagram of the sliding seat of the utility model;

[0023] Figure 6 It is a schematic exploded view of the lifting seat and the rotation fixing assembly of the present utility model;

[0024] Figure 7 It is another perspective view of the lifting seat and the rotation fixing assembly of the present utility model. Specific embodiments

[0025] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0026] As Figures 1 to 7 In the embodiment of the numerically controlled riveting machine for sheet metal processing of the present utility model shown in the figure, the numerically controlled riveting machine for sheet metal processing includes a sliding seat 1, a lifting seat 2 and a base 3. The sliding seat 1 can slide horizontally along the track 3a on the base 3. The lifting seat 2 is arranged at the upper end of the sliding seat 1 and can vertically lift relative to the sliding seat 1. At one end of the track 3a on the base 3, a riveting bottom column 31 is fixedly arranged. At the upper end of the riveting bottom column 31, a riveting cylinder 33 (or a riveting oil cylinder) is provided for cooperating with the riveting bottom column 31 to perform a riveting operation on the sheet metal part.

[0027] A rotation fixing assembly 4 is arranged on the lifting seat 2. The rotation fixing assembly 4 includes a vertically arranged rotating shaft 41 and a fixing member 42. The bottom end of the rotating shaft 41 is connected with a motor 43. The fixing member 42 is fixedly arranged at the top end of the rotating shaft 41. The fixing member 42 is used to fix the sheet metal part. The fixing member 42 can adopt various solutions such as bolts passing through the sheet metal part, or a mold that can be nested into the sheet metal part, or an electromagnet block that is energized to adsorb the sheet metal part, etc. When the sliding seat 1 slides to the end of the track 3a where the riveting bottom column 31 is arranged, the fixing member 42 abuts against the riveting bottom column 31. When the lifting seat 2 abuts against the sliding seat 1, the top end of the fixing member 42 is flush with the top end of the riveting bottom column 31.

[0028] The working process of the present utility model is generally as follows: After the sheet metal part is fixed by the rotary fixing component 4, the sliding seat 1 drives the sheet metal part to approach or move away from the riveting bottom column 31 to a suitable position. The motor 43 drives the fixing part 42 to rotate through the rotating shaft 41, and thus drives the sheet metal part to rotate to a suitable angle. When the positions and angles of the sliding seat 1 and the rotary fixing component 4 are both suitable, one of the through holes on the sheet metal part will be coaxial with the riveting bottom column 31, and a single riveting operation can be completed. Subsequently, the position of the sliding seat 1 is adjusted again and the angle of the rotary fixing component 4 is adjusted to perform the riveting operation on the next through hole on the sheet metal part. At the same time, before the position transformation, the lifting seat 2 is lifted to avoid the riveting bottom column 31 interfering with the sheet metal part and damaging the sheet metal part when the sliding seat 1 and the rotary fixing component 4 change the position of the sheet metal part. After changing to a suitable position, the lifting seat 2 falls back to make the top of the sheet metal part flush with the top of the riveting bottom column 31, which is convenient for continuing the riveting operation.

[0029] The device can complete the riveting operation on the sheet metal part by using a single-layer slide rail, with a simple structure, avoiding the complex structure of using a double-layer slide rail, making the volume of the riveting machine compact, and at the same time achieving the purpose of accurate feeding.

[0030] Of course, this device can not only be used in a single-station riveting machine as shown in Figure 1 but also be applicable to a double-station riveting machine, without any restrictions on the type of riveting machine.

[0031] In an embodiment of the present application, preferably, a lead screw 32 is provided in the track 3a. The lead screw 32 is connected to a driving motor (not shown in the figure). The lead screw 32 passes through the slider 11 on the sliding seat 1. When the lead screw 32 rotates, it drives the sliding seat 1 to slide, so that the sliding seat 1 can slide horizontally along the track 3a on the base 3.

[0032] The motor 43 of the rotary fixing component 4 and the driving motor connected to the lead screw 32 can adopt servo motors to make the changes in the position and angle of the sheet metal part accurate.

[0033] In an embodiment of the present application, the lifting seat 2 is arranged at the upper end of the sliding seat 1 and can be vertically lifted relative to the sliding seat 1. Specifically, a lifting cylinder 12 is fixedly penetrated through the middle part of the sliding seat 1, and the output shaft of the lifting cylinder 12 is fixedly connected to the bottom end surface of the lifting seat 2. The top end surface of the lifting cylinder 12 is flush with the upper surface of the sliding seat 1 or lower than the upper surface of the sliding seat 1 to avoid interfering with the lifting seat 2 and preventing the lifting seat 2 and the sliding seat 1 from coming into contact; guiding columns 13 are fixedly arranged around the sliding seat 1, and the guiding columns 13 penetrate through the lifting seat 2. The guiding columns 13 adopt retractable multi-stage telescopic columns, and the top ends of the guiding columns 13 are fixedly connected to the lifting seat 2; after the lifting cylinder 12 lifts the lifting seat 2 against the resilience of the guiding columns 13 and after the position and angle of the sheet metal part change, the guiding columns 13 can quickly rebound the lifting seat 2 to facilitate the riveting operation.

[0034] In an embodiment of the present application, preferably, a motor slot 1a for avoiding the motor 43 is arranged on the sliding seat 1. The motor 43 is fixedly arranged at the bottom of the lifting seat 2, and the output end of the motor 43 faces upward. Therefore, the tail end of the motor 43 extends downward from the lower surface of the lifting seat 2, and there is only a relative vertical displacement between the sliding seat 1 and the lifting seat 2. Therefore, the motor slot 1a can effectively prevent the sliding seat 1 from interfering with the motor 43 when the lifting seat 2 is lifted or lowered.

[0035] In an embodiment of the present application, preferably, an avoidance slot 3b for avoiding the lifting cylinder 12 and the motor 43 is arranged on the base 3; since the output end of the lifting cylinder 12 faces upward and the lifting cylinder 12 is fixedly penetrated through the sliding seat 1, a part of the tail end of the lifting cylinder 12 extends downward from the lower surface of the sliding seat 1, and the motor 43 may also extend out of the sliding seat 1. Therefore, by arranging the avoidance slot 3b parallel to the track 3a on the base 3, it can effectively prevent the base 3 from interfering with the lifting cylinder 12 and the motor 43 when the sliding seat 1 slides along the track 3a.

[0036] In an embodiment of the present application, preferably, two tracks 3a are arranged, and the tracks 3a are arranged on both sides of the avoidance slot 3b; since the lifting cylinder 12 is located in the middle of the sliding seat 1, the slider 11 needs to be arranged on both sides of the lifting cylinder 12. If a single track 3a and a single slider 11 are arranged, it may cause uneven force when the sliding seat 1 slides and affect the displacement accuracy. Therefore, by arranging two tracks 3a and two sliders 11, the above problems can be effectively avoided; at the same time, the driving motor and the two lead screws 32 can be connected by means of a chain or a belt to ensure the synchronization of the rotation of the two lead screws 32.

[0037] In an embodiment of the present application, preferably, the rotation fixing component 4 further includes a bearing sleeve 44. The bearing sleeve 44 is fixedly arranged on the upper surface of the lifting seat 2. The bearing sleeve 44 is sleeved on the side wall of the rotating shaft 41. The bearing sleeve 44 can prevent the rotating shaft 41 from becoming out-of-round when driven by the motor 43, so as to ensure the accuracy when adjusting the angle of the sheet metal part.

[0038] In an embodiment of the present application, preferably, the fixing member 42 is an electromagnetic block. The top surface of the electromagnetic block can effectively adsorb the magnetic sheet metal part when powered on.

[0039] In an embodiment of the present application, preferably, the rotation fixing component 4 further includes a metal clamping block 45. The metal clamping block 45 cooperates with the electromagnetic block and can effectively clamp and fix the magnetic or non-magnetic sheet metal part when the electromagnetic block is powered on.

[0040] In an embodiment of the present application, preferably, the fixing member 42 is cylindrical, and the rotating shaft 41 and the fixing member 42 are coaxially arranged; thus, when the fixing member 42 abuts against the riveting bottom column 31, the fixing member 42 is tangent to the riveting bottom column 31, and the riveting bottom column 31 will not interfere with the rotation of the fixing member 42. At the same time, the distance between the fixing member 42 and the riveting bottom column 31 is also the closest, so as to maximize the riveting area on the sheet metal part fixed by the fixing member 42.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A CNC riveting machine for sheet metal processing, characterized in that: The invention comprises a sliding seat (1), a lifting seat (2) and a base (3); the sliding seat (1) can slide horizontally along a track (3a) on the base (3); the lifting seat (2) is arranged at the upper end of the sliding seat (1) and can be lifted vertically relative to the sliding seat (1); a riveted bottom column (31) is fixedly provided on the base (3) at one end of the track (3a); a rotating fixing component (4) is provided on the lifting seat (2); the rotating fixing component (4) comprises a rotating shaft (41) and a fixing member (42) The rotating shaft (41) is vertically arranged, the bottom end of the rotating shaft (41) is connected to a motor (43), the fixing member (42) is fixedly arranged at the top end of the rotating shaft (41), and the fixing member (42) is used to fix the sheet metal part; when the sliding seat (1) slides to the end of the track (3a) provided with the riveting bottom column (31), the fixing member (42) contacts the riveting bottom column (31); when the lifting seat (2) contacts the sliding seat (1), the top end of the fixing member (42) is flush with the top end of the riveting bottom column (31).

2. The CNC riveting machine for sheet metal processing according to claim 1, characterized in that: A screw rod (32) is provided in the track (3a), the screw rod (32) is connected to a driving motor, the screw rod (32) passes through a slider (11) on the sliding seat (1), and when the screw rod (32) rotates, the sliding seat (1) is driven to slide.

3. The CNC riveting machine for sheet metal processing according to claim 2, characterized in that: A lifting cylinder (12) is fixedly inserted into the middle portion of the sliding seat (1), and the output shaft of the lifting cylinder (12) is fixedly connected to the bottom end surface of the lifting seat (2); a guide column (13) is fixedly provided around the sliding seat (1), and the guide column (13) is inserted into the lifting seat (2). The guide column (13) is a retractable multi-stage telescopic column, and the top end of the guide column (13) is fixedly connected to the lifting seat (2).

4. The CNC riveting machine for sheet metal processing according to claim 3, characterized in that: The sliding seat (1) is provided with a motor slot (1a) for accommodating the motor (43), and the motor (43) is fixedly arranged at the bottom of the lifting seat (2).

5. The CNC riveting machine for sheet metal processing according to claim 4, characterized in that: The base (3) is provided with an avoidance groove (3b) for avoiding the lifting cylinder (12) and the motor (43).

6. The CNC riveting machine for sheet metal processing according to claim 5, characterized in that: The rails (3a) are provided in two pieces, and the rails (3a) are provided on both sides of the avoidance groove (3b).

7. The CNC riveting machine for sheet metal processing according to claim 1, characterized in that: The rotating fixing assembly (4) further comprises a bearing sleeve (44), wherein the bearing sleeve (44) is fixedly arranged on the upper surface of the lifting seat (2), and the bearing sleeve (44) is sleeved on the side wall of the rotating shaft (41).

8. The CNC riveting machine for sheet metal processing according to claim 1, characterized in that: The fixing member (42) is an electromagnetic block, and the top surface of the electromagnetic block can adsorb the sheet metal part when power is supplied.

9. The CNC riveting machine for sheet metal processing according to claim 8, characterized in that: The rotating fixing assembly (4) further comprises a metal clamp block (45), and the metal clamp block (45) cooperates with the electromagnetic block to fix the sheet metal part.

10. The CNC riveting machine for sheet metal processing according to claim 1 or 9, characterized in that: The fixing member (42) is cylindrical, and the rotating shaft (41) and the fixing member (42) are coaxially arranged.

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