A torsion bar forming device

Abstract

A torsion bar forming device relates to the field of part forming, comprising: a torsion bar chuck, an angle head, a protractor, a pressure roller, a fork, a force applying rod, a first cylindrical pin, a slotted cylindrical head screw, and a second cylindrical pin. A pair of first cylindrical pins are installed in the torsion bar chuck, the pressure roller and the fork are connected by the second cylindrical pin, the threaded part of the force applying rod is screwed into the threaded hole of the fork, and after tightening, the fork is connected with the angle head by the second cylindrical pin. The above-mentioned connected assembly is connected with the protractor through the slotted cylindrical head screw, and finally the two round holes of the protractor are aligned with the first cylindrical pins installed in the torsion bar chuck and are installed. According to the angle requirement of the torsion bar forming, the angle head is adjusted so that the angle head line is aligned with the protractor scale, and the angle head is fastened on the protractor through the slotted cylindrical head screw. The force applying rod is pressed, the pressure roller is rolled and the torsion bar is pressed tightly, and the accurate space angle forming of the torsion bar is realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of part forming, and discloses a torsion bar forming device. BACKGROUND

[0002] A product includes a torsion bar and a wing, and the torsion bar passes through a plurality of holes of the wing. The product is in a certain form under a pre-tightening force, and is deformed into another form when the pre-tightening force is released.

[0003] During the assembly of the product, the torsion bar needs to be sequentially passed through the plurality of holes of the wing and then bent at a certain angle. The lengths and bending angles of the torsion bar required by different parts are different. In order to adapt to the different states and different modes required during the assembly of the product, a torsion bar forming device needs to be designed to accurately form the torsion bar at different lengths and spatial angles, so as to improve the installation efficiency. SUMMARY

[0004] The application solves the technical problem of overcoming the shortcomings of the prior art and providing a torsion bar forming device which is small in structure and can accurately form the torsion bar at different spatial angles according to requirements.

[0005] The technical scheme provided by the application is as follows:

[0006] The torsion bar forming device comprises a torsion bar chuck, an angle adjusting device and a bending device. The torsion bar chuck is used for positioning the torsion bar, the torsion bar passes through the angle adjusting device and the bending device. The angle adjusting device is connected between one end of the torsion bar chuck and the bending device, and is used for adjusting the angle at which the bending device rotates around the axis of the torsion bar in the torsion bar chuck, so that the bending device bends the torsion bar in different directions.

[0007] In one implementation manner of the forming device, the angle adjusting device comprises a protractor disc and a slotted cylinder head screw, the bending device is provided with at least two long round holes, the slotted cylinder head screw is threadedly connected to the protractor disc through the long round holes, the protractor disc is marked with angle graduation lines, and the bending device is provided with a reference graduation line.

[0008] In one implementation manner of the forming device, one end of the torsion bar chuck is provided with a connecting hole, a first cylindrical pin is fixed in the connecting hole, and the protractor disc is provided with a fixing hole matched with the first cylindrical pin.

[0009] In one implementation manner of the forming device, the protractor disc is of a circular structure, the protractor disc is provided with an L-shaped through groove, the L-shaped through groove extends along the radial direction of the protractor disc from the center position of the protractor disc and then extends obliquely to the edge of the protractor disc to avoid the scale on the surface of the protractor disc, and the included angle between the two sections of the L-shaped through groove is usually 90-120℃.

[0010] In an implementation of the forming device, the bending device comprises a swivel head, a pressure roller and a fork, at least two long circular grooves are formed in the swivel head, a reference line is formed on the surface of the swivel head, a protrusion is arranged on the side of the swivel head away from the index disc, a U-shaped groove is formed on the protrusion for guiding the bending of the torsion rod, one end of the fork is in a U-shaped structure, the pressure roller and the protrusion are both rotatably connected to the inner side of the U-shaped structure, and the torsion rod is placed between the pressure roller and the protrusion.

[0011] In an implementation of the forming device, the bending device further comprises a force applying rod, and the force applying rod is connected to the end of the fork away from the protrusion.

[0012] In an implementation of the forming device, a cylindrical boss is arranged at the center of the side of the index disc facing the bending device, when the angle is adjusted, the inner side surface of the U-shaped groove of the swivel head is matched with the outer cylindrical surface of the cylindrical boss of the index disc, and the protrusion rotates around the axis of the cylindrical boss.

[0013] In an implementation of the forming device, the swivel head is provided with a U-shaped through groove, one end of the U-shaped through groove is located at the center of the swivel head and extends to the edge of the swivel head along the radial direction of the swivel head.

[0014] In an implementation of the forming device, one side of the torsion rod chuck is provided with a positioning groove for positioning the torsion rod, and the shape of the positioning groove is matched with the shape of the wing through which the torsion rod passes.

[0015] In an implementation of the forming device, the torsion rod chuck is provided as one or more, and the plurality of torsion rod chucks are respectively different in length, the two ends of the torsion rod chuck are respectively provided with a cylindrical pin and a connecting hole, and the cylindrical pin is matched with the connecting hole.

[0016] In summary, the present application at least has the following beneficial technical effects:

[0017] The present application discloses a torsion rod forming device, which is small in structure and has the functions of quickly forming torsion rods with different lengths and different spatial angles. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a schematic diagram of the overall structure of the device;

[0019] Figure 2 FIG. 4 is a schematic diagram of the structure of the swivel head;

[0020] Figure 3 FIG. 5 is a schematic diagram of the structure of the index disc;

[0021] Figure 4 FIG. 6 is a schematic diagram of the structure of the torsion rod chuck;

[0022] Figure 5 FIG. 7 is a schematic diagram of the structure of the pressure roller.

[0023] Figure 6 Structure diagram of fork;

[0024] Figure 7 Structure diagram of force applying rod;

[0025] Figure 8 Structure diagram of force applying forming assembly;

[0026] Figure 9 Structure diagram of first cylindrical pin.

[0027] Brief Description of the Drawings: 1, torque rod clamp; 2, angle head; 3, protractor; 4, pressure wheel; 5, fork; 6, force applying rod; 7, first cylindrical pin; 8, slotted cylindrical head screw; 9, second cylindrical pin; DETAILED DESCRIPTION

[0028] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. Unless specifically indicated otherwise, the drawings are not necessarily to scale.

[0029] A torque rod forming device, as shown in Figure 1 and Figure 2 , comprises a torque rod clamp 1, an angle adjusting device and a bending device. The torque rod clamp 1 is used to position the torque rod; the angle adjusting device is connected between one end of the torque rod clamp 1 and the bending device, and is used to adjust the angle of the bending device relative to the torque rod in the torque rod clamp 1, so that the bending device bends the torque rod in different directions.

[0030] As shown in Figure 1 and Figure 4 , one side of the torque rod clamp 1 is provided with a positioning groove for positioning the torque rod. The torque rod clamp 1 is provided in different lengths and can be used alone or in combination to adapt to torque rods of different lengths. The two ends of the torque rod clamp 1 are respectively provided with a cylindrical pin and a connecting hole, and the cylindrical pin cooperates with the connecting hole, so that when different torque rod clamps 1 are used in combination, the cylindrical pin of one torque rod clamp 1 is inserted into the connecting hole of another torque rod clamp 1. In this embodiment, the edge of the wing is U-shaped, the torque rod passes through the hole in the edge of the wing, and the positioning groove is a U-shaped groove matched with the shape of the edge of the wing. By positioning the wing and the torque rod together in the positioning groove, the wing simultaneously presses the torque rod tightly in the positioning groove, so that an additional pressing device is not needed to fix the torque rod in the positioning groove, and the stability of the position of the torque rod during bending is ensured.

[0031] As shown in Figure 1 , Figure 3 andFigure 9 As shown in the figure, the angle adjusting device comprises a protractor 3, a first cylindrical pin 7 and a slotted cylindrical head screw 8. The torsion bar clamp head 1 is provided with a connecting hole at the position of one end of the positioning groove, the first cylindrical pin 7 is connected in the connecting hole through an overfitting connection, the protractor 3 is provided with a fixed hole matched with the first cylindrical pin 7, the first cylindrical pin 7 is inserted into the fixed hole, so that the protractor 3 is connected with the torsion bar clamp head 1, and the first cylindrical pin 7 is a Φ6 cylindrical pin. This connection mode makes the installation and disassembly between the torsion bar clamp head 1 and the angle adjusting device convenient. The protractor 3 is engraved with angle scale lines. The bending device is provided with at least two long circular grooves, each slotted cylindrical head screw 8 passes through one long circular groove and is threadedly connected with the protractor 3. When the slotted cylindrical head screw 8 is loosened, the bending device can be rotated, the bending device is rotated according to the space angle required by the torsion bar to be bent, then the slotted cylindrical head screw 8 is tightened, and the bending device can control the bending of the torsion bar.

[0032] As shown in the figure, Figure 1 and Figure 3 The protractor 3 is a circular structure, the protractor is provided with an L-shaped through groove, the L-shaped through groove extends along the radial direction of the protractor from the center position of the protractor, then extends to the edge of the protractor 3 along a direction at a certain angle with the radial direction of the protractor. The L-shaped through groove is arranged to facilitate the disassembly of the torsion bar after forming.

[0033] As shown in the figure, Figure 1 , Figure 2 , Figure 5 and Figure 6 The bending device comprises an angle head 2, a pressure roller 4, a fork 5, a force applying rod 6 and a second cylindrical pin 9. The angle head 2 is a circular structure, at least two long circular grooves are arranged in the angle head 2, and the angle head 2 is provided with at least one reference scale line for aligning the reference scale line with different angle scale lines on the protractor 3. The angle head 2 is provided with a U-shaped through groove, one end of the U-shaped through groove is located at the center position of the angle head 2 and extends to the edge of the angle head 2 along the radial direction of the angle head 2, and the U-shaped through groove is arranged to facilitate the disassembly of the torsion bar after forming and to ensure that torsion bars of different lengths after bending can be removed from the U-shaped through groove. The side of the angle head 2 away from the protractor 3 is provided with a protrusion, and the protrusion is provided with a U-shaped groove for guiding the bending of the torsion bar. One end of the fork 5 is a U-shaped structure, the U-shaped structure is provided with two axis-parallel light holes, and the other end of the fork 5 is provided with a threaded hole for connecting the force applying rod 6. The light holes are used to rotate and connect the protrusion and the pressure roller 4 to the inner side of the U-shaped structure. Specifically, one second cylindrical pin 9 is connected in each light hole, one second cylindrical pin 9 passes through the pressure roller 4, and one second cylindrical pin 9 passes through the protrusion, thereby connecting the pressure roller, the angle head 2 and the fork 5, and the second cylindrical pin 9 is a Ф4 cylindrical pin. A U-shaped groove is arranged in the middle part of the outer circular surface of the pressure roller 4 to guide and press the torsion bar to form. As shown in the figure, Figure 7 and Figure 8As shown, the force applying rod 6 is screwed to one end of the fork 5 through the threaded hole, and the force applying rod is arranged to facilitate the operator to grasp and apply force, so as to realize the accurate and rapid shaping of the space angle of the torsion bar.

[0034] The torsion bar passes between the compression wheel 4 and the protrusion, the force applying rod 6 is rotated, the force applying rod 6 drives the compression wheel 4 to rotate around the axis of the second cylindrical pin 9 in the protrusion, and the compression wheel 4 bends the torsion bar.

[0035] The protractor 3 is provided with a cylindrical boss (protrusion) at the center of the side facing the bending device, when the angle is adjusted, the inner side surface of the U-shaped groove of the angle head 2 cooperates with the outer cylindrical surface of the cylindrical boss of the protractor 3, and the protrusion rotates around the axis of the cylindrical boss.

[0036] The implementation principle of the present application is:

[0037] In the assembly process of the product, when the torsion bar needs to be bent at a position, first, a pair of first cylindrical pins 7 are installed in the torsion bar chuck 1, and the wing and the torsion bar passing through the wing are clamped into the U-shaped groove of the torsion bar chuck 1, and the compression wheel 4 and the fork 5 are connected by the second cylindrical pin 9. Secondly, the threaded part of the force applying rod 6 is screwed into the threaded hole of the fork 5, and after being tightened, the fork 5 is connected with the angle head 2 by the second cylindrical pin 9. Thirdly, the angle head 2 is connected with the protractor 3 through the slotted cylindrical head screw 8, and finally the two fixing holes of the protractor 3 are aligned with the first cylindrical pins installed in the torsion bar chuck 1 and are installed. According to the angle forming requirement of the torsion bar, the angle head 2 is rotated to align the angle head 2 with the protractor 3, and the angle head 2 is fastened on the protractor 3 through the slotted cylindrical head screw 8, the force applying rod 6 is pressed, the compression wheel 4 is rolled and pressed on the torsion bar, and the accurate angle shaping of the torsion bar is realized.

[0038] After the space angle of the torsion bar is shaped, the slotted cylindrical head screw 8 is unscrewed, the angle head 2 is separated from the protractor 3, the angle head 2, the fork 5 and the compression wheel 4 are moved along the axis direction of the torsion bar, then the protractor 3 is moved, the protractor 3 is pushed away from the torsion bar chuck 1, and the torsion bar is moved out of the L-shaped slot, and the disassembly of the shaping device is completed.

[0039] The present application is described in detail in combination with the specific embodiments and exemplary examples, but these descriptions cannot be understood as limitations of the present application. Those skilled in the art understand that the technical solutions and embodiments of the present application can be variously replaced, modified or improved without departing from the spirit and scope of the present application, and these all fall within the scope of the present application. The protection scope of the present application is subject to the appended claims.

[0040] The contents not described in detail in the specification of the present application are the known technology of those skilled in the art.

Claims

1. A torsion bar forming apparatus characterized by: The utility model relates to a kind of angle adjusting device and bending device including torsion bar chuck (1), and the torsion bar chuck (1) is used to position torsion bar, and torsion bar passes through angle adjusting device and passes through bending device;Angle adjusting device is connected between the one end of torsion bar chuck (1) and bending device, and angle adjusting device is used to adjust the angle of bending device rotating around the axis of torsion bar in torsion bar chuck (1), so that bending device is bent to different direction to torsion bar; The angle adjusting device includes a protractor (3) and a slotted cylindrical head screw (8), the bending device is provided with at least two long circular holes, the slotted cylindrical head screw (8) is threadedly connected to the protractor (3) through the long circular holes, the protractor (3) is engraved with angle scale lines, and the bending device is provided with a reference scale line. One end of the torsion bar chuck (1) is provided with a connecting hole, a first cylindrical pin (7) is fixed in the connecting hole, and the protractor (3) is provided with a fixing hole matched with the first cylindrical pin (7). The protractor (3) is a circular structure, and an L-shaped through groove is formed in the protractor, which extends from the center of the protractor along the radial direction of the protractor, and then extends obliquely to the edge of the protractor (3). The bending device includes an angle head (2), a pressure roller (4) and a fork-shaped piece (5), at least two long circular grooves are formed in the angle head (2), the reference scale line is formed on the surface of the angle head (2), the side of the angle head (2) away from the protractor (3) is provided with a protrusion, the protrusion has a U-shaped groove for guiding the bending of the torsion bar, one end of the fork-shaped piece (5) is in a U-shaped structure, the pressure roller (4) and the protrusion are rotatably connected to the inner side of the U-shaped structure, and the pressure roller (4) and the protrusion are used to place the torsion bar. The bending device further includes a force applying rod (6) connected to the end of the fork-shaped piece (5) away from the protrusion. The center of the side of the protractor (3) facing the bending device is provided with a cylindrical boss, when adjusting the angle, the inner side surface of the U-shaped groove of the angle head (2) is matched with the outer cylindrical surface of the cylindrical boss of the protractor (3), and the protrusion rotates around the axis of the cylindrical boss.

2. A torsion bar forming apparatus as defined in claim 1, wherein: The angle head (2) is provided with a U-shaped through groove, one end of the U-shaped through groove is located at the center of the angle head (2) and extends to the edge of the angle head (2) along the radial direction of the angle head (2).

3. A torsion bar forming apparatus as defined in claim 1, wherein: One side of the torsion bar chuck (1) is provided with a positioning groove for positioning the torsion bar, and the shape of the positioning groove is matched with the shape of the wing through which the torsion bar passes.

4. A torsion bar forming apparatus according to claim 1 or 3, wherein: The torsion bar chuck (1) is provided as one or more, and the plurality of torsion bar chucks (1) are respectively different in length; the two ends of the torsion bar chuck (1) are respectively provided with a cylindrical pin and a connecting hole matched with the cylindrical pin.

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