Tool for batch machining of square tubes

Abstract

The utility model provides a tool for batch processing of square tubes, which comprises a rack, more than two clamping mechanisms are arranged on the rack at intervals, each clamping mechanism comprises a workpiece groove, an abutting device and a pressing device, a workpiece is arranged in the workpiece groove, a limiting column is arranged around the workpiece, and the abutting device and the pressing device are arranged on the rack. The abutting device and the pressing device are arranged between the two workpiece grooves. The abutting device comprises a fixing strip, elastic devices are arranged on the two sides of the fixing strip respectively, and the elastic devices on the two sides are in contact connection with the side faces of the workpieces on the two sides respectively. The pressing device comprises a rotary pressing cylinder, a pressing rod is arranged at the end of a piston rod of the rotary pressing cylinder, and the bottom of the pressing rod is in contact connection with the top of the workpiece. According to the utility model, the batch processing effect of workpieces is realized through the plurality of workpiece grooves; the effect that two workpieces are pressed by one pressing device is achieved through the pressing device, and cost is reduced; the workpiece is limited through the abutting device, so that the positioning precision is improved; and the workpiece is easy to disassemble and assemble through the elastic device and the pressing device.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to machining technology, and especially to a tooling for batch machining of square tubes. Background Art

[0002] In the prior art, a fixture for machining a square tube workpiece can clamp one square tube at a time. After machining each one, the square tube needs to be replaced and clamped again, resulting in low machining efficiency. There have also been fixtures for batch clamping of square tubes, but there are still some problems: 1. One workpiece requires a set of cylinder chucks, resulting in high costs; 2. The workpiece positioning is inaccurate and the accuracy is low; 3. The chuck will hinder the placement of the workpiece, making it difficult to disassemble and assemble the workpiece. Summary of the Invention

[0003] The purpose of the utility model is to provide a tooling for batch machining of square tubes, and the tooling for batch machining of square tubes is to solve the technical problems of inability to batch machine, high cost, low positioning accuracy and difficult disassembly and assembly of workpieces in the prior art.

[0004] A tooling for batch machining of square tubes includes a frame, and two or more clamping mechanisms are arranged at intervals on the frame. Each clamping mechanism includes two workpiece grooves, a pressing device and two pressing devices. The two pressing devices are respectively located at both ends of the pressing device; workpieces are arranged in the workpiece grooves, and more than four limiting columns are arranged around the workpieces. The pressing device and the pressing device are arranged between the two workpiece grooves; the pressing device includes a fixed strip, elastic devices are respectively arranged on both sides of the fixed strip, and the elastic devices on both sides are respectively in contact connection with the side surfaces of the workpieces on both sides; the pressing device includes a rotary pressing cylinder, a pressing rod is arranged at the end of the piston rod of the rotary pressing cylinder, and the bottom of the pressing rod is in contact connection with the top of the workpiece.

[0005] Further, elastic devices are also arranged at both ends of the workpiece groove.

[0006] Furthermore, the elastic device includes a fixed seat, a spring and a steel ball. The spring is arranged in the fixed seat, the steel ball is arranged at the top of the fixed seat, and one end of the spring is connected with the steel ball.

[0007] Further, three elastic devices are respectively arranged on both sides of the fixed strip. Advantageous Effects

[0008] Compared with the prior art, the effects of the utility model are positive and obvious:

[0009] 1. The batch machining effect of square tube workpieces is realized through a plurality of workpiece grooves arranged in parallel at intervals, the clamping frequency is reduced, and the machining efficiency is improved.

[0010] 2. By setting a pressing device between the workpiece grooves, the effect of one pressing device pressing two workpieces is achieved, reducing costs.

[0011] 3. The workpiece is limited by the abutting device, improving the positioning accuracy.

[0012] 4. The elastic device with a steel ball structure and the pressing device that rotates and presses down facilitate the disassembly and assembly of the workpiece. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of an embodiment of the tooling for batch processing of square tubes of the present utility model.

[0014] Figure 2 is a schematic cross-sectional structural diagram of an embodiment of the tooling for batch processing of square tubes of the present utility model.

[0015] Figure 3 is a schematic structural diagram of the abutting device in an embodiment of the tooling for batch processing of square tubes of the present utility model.

[0016] Figure 4 is a schematic structural diagram of the elastic device in an embodiment of the tooling for batch processing of square tubes of the present utility model.

[0017] Figure 5 . is a schematic diagram when the piston rod of the rotary pressing cylinder in an embodiment of the tooling for batch processing of square tubes of the present utility model descends.

[0018] Figure 6 is a schematic diagram when the piston rod of the rotary pressing cylinder in an embodiment of the tooling for batch processing of square tubes of the present utility model ascends.

[0019] In the figure: 1 frame; 2 pressing device; 201 pressure bar; 202 rotary pressing cylinder; 3 abutting device; 301 fixed strip; 4 workpiece groove; 5 workpiece; 6 controller; 7 elastic device; 701 fixed seat; 702 steel ball; 8 limit post. Detailed Embodiment

[0020] The following embodiments will further illustrate the present utility model, but do not limit the present utility model thereby.

[0021] As Figures 1 to 6 shown, this embodiment provides a tooling for batch processing of square tubes, including a frame 1. The frame 1 is in the shape of a flat plate as a whole. Ten clamping mechanisms are arranged in parallel at intervals on the upper surface of the frame 1, thereby achieving the effect of batch processing of square tube workpieces, reducing the clamping frequency, and improving the processing efficiency.

[0022] Each clamping mechanism includes two workpiece grooves 4, one abutting device 3, and two pressing devices 2.

[0023] A square tube workpiece (hereinafter referred to as the workpiece) is arranged in each workpiece slot 4, and six limiting columns 8 are arranged around the workpiece 5, namely: two limiting columns 8 on the left and right sides of the workpiece 5, and one limiting column 8 on the upper and lower sides of the workpiece 5. The limiting columns 8 surround the workpiece 5 to achieve a limiting effect on the workpiece 5 in the workpiece slot 4, thereby preventing the workpiece 5 from escaping from the workpiece slot 4 after being placed in the workpiece slot 4.

[0024] The clamping device 3 and the clamping device 2 are arranged between the two workpiece grooves 4. The two clamping devices 2 are respectively located at the two ends of the clamping device 3, and are used to clamp the two ends of the workpiece 5, so that the workpiece 5 is fixed in the workpiece groove 4 for easy processing. The clamping device 2 arranged between the workpiece grooves 4 achieves the effect of one clamping device 2 clamping two workpieces 5, reducing costs.

[0025] The clamping device 3 includes a fixing bar 301, which is fixed on the frame 1. Three elastic devices 7 are respectively arranged on both sides of the fixing bar 301. The elastic device 7 includes a fixing seat 701, a spring and a steel ball 702. The fixing seat 701 is hollow inside and has a circular hole at the top. The diameter of the circular hole is smaller than the diameter of the steel ball 702. The spring is arranged in the fixing seat 701. One end of the spring is connected to the steel ball 702. The steel ball 702 is arranged at the top inside the fixing seat 701. The steel ball 702 is restricted by the circular hole and cannot be completely separated from the fixing seat 701. The part of the steel ball 702 exposed outside the circular hole contacts the side of the workpiece 5.

[0026] When the workpiece 5 is placed in the workpiece slot 4, the surface of the workpiece 5 contacts the steel ball 702. The impact force when the workpiece 5 is placed pushes the steel ball 702 into the fixing seat 701. At this time, the spring generates elastic force to push the steel ball 702 to make the workpiece 5 rebound, and then the workpiece 5 is close to the limit column 8 on the other side to achieve the positioning effect; elastic devices 7 are also provided at the upper and lower ends of the workpiece slot 4 to further position the workpiece 5. The spherical steel ball structure allows the workpiece 4 to slide smoothly into the workpiece slot 4 when placed, making it easy to disassemble and assemble the workpiece.

[0027] The clamping device 2 includes a rotating pressing cylinder 202, which is an existing conventional technology and its structure and principle are not described in detail here; a pressing rod 201 is provided at the end of the piston rod of the rotating pressing cylinder 202, and when the rotating pressing cylinder 202 is raised, the pressing rod 201 is vertically arranged between the two workpiece grooves 4; when the piston rod of the rotating pressing cylinder 202 is lowered, the rotation of the piston rod drives the pressing rod 201 to rotate, so that the pressing rod 201 becomes horizontal, and at the same time, the pressing rod 201 is pressed downward, and the bottom of the pressing rod 201 contacts and presses the top of the workpiece 5, thereby achieving the effect of fixing the workpiece 5, which is convenient for subsequent processing.

[0028] In this embodiment, the external controller 6 controls the lifting and lowering of the rotary pressing cylinder 202 in the pressing device 2 .

[0029] Specific working mode of this embodiment:

[0030] In the initial state, the piston rod of the rotary pressing cylinder 202 rises, and the pressing rod 201 is vertically arranged between the two workpiece grooves 4.

[0031] Ten square pipe workpieces 5 are respectively and sequentially placed into the ten workpiece grooves 4. When the workpiece 5 is placed, it contacts the elastic device 7 in the clamping device 3. The impact force when the workpiece 5 is placed presses the steel ball 702 in the elastic device 7 into the fixed seat 701. Then, due to the elastic force of the spring, the steel ball 702 is ejected, and thus the workpiece 5 is clamped against the limiting post 8 on the other side, achieving a high-precision positioning effect.

[0032] Press the button of the controller 6, and the piston rods of all the rotary pressing cylinders 202 descend. The rotation of the piston rods drives the pressing rod 201 to rotate, making the pressing rod 201 become horizontal. At the same time, the pressing rod 201 presses down. After the bottom of the pressing rod 201 contacts the top of the workpiece 5, it clamps the workpiece 5, thus achieving the effect of fixing the workpiece 5 and facilitating subsequent processing.

[0033] 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 recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tool for batch processing of square tubes, characterized in that: The invention comprises a frame (1), wherein at least two clamping mechanisms are arranged at intervals on the frame (1), each of the clamping mechanisms comprises two workpiece grooves (4), a clamping device (3) and two pressing devices (2), and the two pressing devices (2) are respectively located at two ends of the clamping device (3); a workpiece (5) is arranged in the workpiece groove (4), and at least four limiting columns (8) are arranged around the workpiece (5), and the clamping device (3) and the pressing device (2) are arranged between the two workpiece grooves (4); the clamping device (3) comprises a fixing bar (301), and elastic devices (7) are respectively arranged on both sides of the fixing bar (301), and the elastic devices (7) on both sides are respectively in contact with and connected to the side surfaces of the workpiece (5) on both sides; the pressing device (2) comprises a rotating pressing cylinder (202), and a pressing rod (201) is arranged at the end of the piston rod of the rotating pressing cylinder (202), and the bottom of the pressing rod (201) is in contact with and connected to the top of the workpiece (5).

2. The tooling for batch processing of square tubes according to claim 1, characterized in that: Elastic devices (7) are also provided at both ends of the workpiece groove (4).

3. A tool for batch processing of square tubes according to claim 1 or 2, characterized in that: The elastic device (7) comprises a fixing seat (701), a spring and a steel ball (702); the spring is arranged in the fixing seat (701); the steel ball (702) is arranged at the top end of the fixing seat (701); and one end of the spring is connected to the steel ball (702).

4. The tooling for batch processing of square tubes according to claim 1, characterized in that: Three elastic devices (7) are respectively arranged on both sides of the fixing strip (301).

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