Clamp for machining internal spline groove of torsion arm

Abstract

The utility model belongs to the technical field of torsion arm machining clamps, and particularly relates to a clamp for machining an internal spline groove of a torsion arm, which comprises a base and a torsion arm body, a fixing column and a positioning column are arranged on the base side by side, and the fixing column and the positioning column are used for moving and limiting the torsion arm body. The torsion arm body comprises a connecting arm, a first cap and a second cap, the first cap and the second cap are installed at the two ends of the connecting arm, one end of the fixing column can be inserted into the first cap, a storage space for containing the top end of the positioning column is formed in the connecting arm, and arm grooves are formed in the two symmetrical sides of the connecting arm. Through the fixing column and the positioning column which are additionally arranged on the base, when the first cover cap is arranged on the fixing column in a sleeving mode, the top of the positioning column is inserted into the connecting arm, so that the connecting arm is positioned on the horizontal plane, and the end faces of the first cover cap and the second cover cap are both located on the machining plane; and internal spline groove machining can be conveniently conducted on the first cap and the second cap at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of torsion arm processing fixtures, and in particular relates to a fixture for processing a spline groove in a torsion arm. Background Art

[0002] The torsion arm includes a connecting arm and a first cap and a second cap installed at both ends of the connecting arm. The first cap and the second cap are penetrated by through holes for connection. In order to ensure the stability of the connection between the first cap and the second cap, the two through holes need to be processed with internal spline grooves. In this process, a processing fixture is needed to clamp the torsion arm.

[0003] The existing processing fixture does not have a device for positioning and clamping the torsion arm, which means that the fixture needs to clamp the first cap and the second cap separately, resulting in the first cap and the second cap being unable to be processed at the same time. Moreover, one torsion arm needs to be clamped multiple times when processing the internal spline groove, which greatly reduces the processing efficiency of the equipment. Utility Model Content

[0004] The utility model aims to provide a fixture for machining a spline groove in a torsion arm, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixture for processing spline grooves in a torsion arm, comprising: a base and a torsion arm body, the base being provided with two fixed columns and a positioning column for limiting the movement of the torsion arm body in parallel, the torsion arm body comprising a connecting arm and a first cover cap and a second cover cap installed at both ends of the connecting arm, one end of the fixed column can be inserted into the first cover cap, and a storage space for accommodating the top end of the positioning column is opened on the connecting arm.

[0006] Preferably, arm grooves are provided on both symmetrical sides of the connecting arm, and the storage space is formed in one of the arm grooves.

[0007] Preferably, a clamping block for clamping the connecting arm is also installed on the base, and two guide rods are movably penetrated at both ends of the clamping block, and the bottom ends of the two guide rods can be detachably installed on the base, and at least one fastening bolt is provided on the clamping block, and one end of the fastening bolt can abut against one of the guide rods.

[0008] Preferably, both ends of the clamp block are penetrated by through holes corresponding to the guide rods, and the outside of the clamp block is provided with a second threaded hole connected to the through hole, and the fastening bolt is threadedly installed in the second threaded hole.

[0009] Preferably, two first threaded holes are opened on the top of the base, the two first threaded holes are respectively arranged on both sides of the connecting arm, and the bottom ends of the two guide rods are respectively screwed in the corresponding first threaded holes.

[0010] Preferably, the first cover cap and the second cover cap are respectively penetrated by a first through hole and a second through hole, and the first cover cap is sleeved on the fixing column through the first through hole.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) The utility model adds a fixing column and a positioning column to the base. When the first cover cap is mounted on the fixing column, the top of the positioning column is inserted into the connecting arm, thereby positioning the connecting arm on a horizontal plane. The end faces of the first cover cap and the second cover cap are then level, making it easy to process the inner spline grooves of the first cover cap and the second cover cap at the same time.

[0013] (2) The utility model adds an arm slot to facilitate the top end of the positioning column to be inserted into the connecting arm, thereby avoiding the axial angle adjustment of the connecting arm on the fixing column through the first cover cap, thereby completing the positioning of the connecting arm.

[0014] (3) The utility model adds a clamping block, two guide rods and a fastening bolt. When the connecting arm is positioned on the base, the clamping blocks are respectively mounted on the two guide rods and abutted against the connecting arm. At this time, the fastening bolts are tightened to clamp the connecting arm and install it on the base, thereby realizing the rapid clamping of the connecting arm on the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a front view of the utility model;

[0017] Figure 3 It is a cross-sectional view of the utility model;

[0018] Figure 4 This is a schematic diagram of the coordination of the clamping block, the guide rod and the fastening bolts of the utility model;

[0019] In the figure: 1. base; 2. first cover cap; 3. first through hole; 4. clamping block; 5. connecting arm; 6. second through hole; 7. arm slot; 8. positioning column; 9. guide rod; 10. second cover cap; 11. fastening bolt; 12. first threaded hole; 13. fixing column; 14. second threaded hole; 15. through hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] refer to Figure 1-3 As shown, the utility model provides a clamp for processing the spline groove in a torsion arm, comprising: a base 1 and a torsion arm body, the base 1 is provided with two fixed columns 13 and a positioning column 8 for limiting the movement of the torsion arm body in parallel, the torsion arm body comprises a connecting arm 5 and a first cover cap 2 and a second cover cap 10 installed at both ends of the connecting arm 5, one end of the fixed column 13 can be inserted into the first cover cap 2, and a storage space for accommodating the top end of the positioning column 8 is opened on the connecting arm 5.

[0022] As mentioned above, when using the base 1, torsion arm body, positioning column 8 and fixing column 13 provided by the utility model, the positioning column 8 and the fixing column 13 are longitudinally installed in parallel on the top of the base 1, and the first cap 2 on the connecting arm 5 is sleeved on the fixing column 13. During the descent of the connecting arm 5, the top end of the positioning column 8 is inserted into the connecting arm 5. At this time, the connecting arm 5 is positioned by the fixing column 13 and the positioning column 8. At the same time, the height of the positioning column 8 is used to support the end of the connecting arm 5 close to the second cap 10, so that the end faces of the first cap 2 and the second cap 10 are both on a horizontal plane, which is convenient for processing the inner spline grooves of the first cap 2 and the second cap 10. The size of the first cap 2 is larger than that of the second cap 10.

[0023] Further, in order to allow the top of the positioning column 8 to be inserted into the connecting arm 5, refer to Figure 3 As shown, arm slots 7 are provided on both symmetrical sides of the connecting arm 5, and a storage space is formed in one of the arm slots 7. When the first cap 2 is sleeved on the fixing column 13, one arm slot 7 on the connecting arm 5 is located above the positioning column 8. When the connecting arm 5 is lowered, the top end of the positioning column 8 is inserted into the arm slot 7, and the connecting arm 5 can be positioned by the positioning column 8.

[0024] Further, in order to facilitate the first cap 2 to be sleeved on the fixing column 13, refer to Figure 1 and Figure 3As shown, the first cap 2 and the second cap 10 are respectively penetrated by the first through hole 3 and the second through hole 6, and the first cap 2 is sleeved on the fixing column 13 through the first through hole 3. The first cap 2 is sleeved on the fixing column 13 through the first through hole, and at this time, the axis of the first through hole 3 and the second through hole 6 are both in the longitudinal direction, so that the end faces of the first through hole 3 and the second through hole 6 are horizontal, which is convenient for the equipment to perform internal spline groove processing on the first through hole 3 and the second through hole 6.

[0025] In the present utility model, combined with Figure 1-3 As shown, a clamping block 4 for clamping the connecting arm 5 is also installed on the base 1 of this embodiment, and two guide rods 9 are movably penetrated at both ends of the clamping block 4, and the bottom ends of the two guide rods 9 can be detachably installed on the base 1, and at least one fastening bolt 11 is provided on the clamping block 4, and one end of the fastening bolt 11 can abut against one of the guide rods 9.

[0026] Combination Figure 4 As shown, both ends of the clamp block 4 are penetrated by through holes 15 for accommodating the corresponding guide rods 9 , and the outside of the clamp block 4 is provided with a second threaded hole 14 communicating with the through hole 15 , and the fastening bolt 11 is threadedly installed in the second threaded hole 14 .

[0027] As mentioned above, when using the clamp block 4 and guide rod 9 provided by the utility model, two guide rods 9 are provided and distributed on both sides of the connecting arm 5. When the connecting arm 5 falls on the positioning column 8, the connecting arm 5 is between the two guide rods 9. The clamp block 4 is respectively mounted on the two guide rods 9 through the through hole 15, so that the clamp block 4 abuts against the connecting arm 5, and the clamp block 4 is pressed downward. During this process, the fastening bolt 11 in the second threaded hole 14 is rotated so that one end of the fastening bolt 11 abuts against the guide rod 9. At this time, the clamp block 4 is lifted and lowered on the guide rod 9 by the fastening bolt 11, so that the connecting arm 5 is clamped on the base 1, thereby realizing the rapid clamping of the connecting arm 5 on the base 1.

[0028] Further, in order to allow the guide rod 9 to be detachably mounted on the base 1, refer to Figure 1 As shown, two first threaded holes 12 are provided on the top of the base 1, and the two first threaded holes 12 are respectively arranged on both sides of the connecting arm 5, and the bottom ends of the two guide rods 9 are respectively screwed into the corresponding first threaded holes 12. The first threaded holes 12 provide installation positions for the guide rods 9 on the base 1, and the top ends of the guide rods 9 are externally threaded column ends, through which the guide rods 9 can be screwed into the first threaded holes 12. At this time, the two guide rods 9 are longitudinally symmetrically distributed on both sides of the connecting arm 5, providing installation positions for the clamping block 4.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for processing a spline groove in a torsion arm, characterized in that: include: A base (1) and a torsion arm body, wherein the base (1) is provided with two fixed columns (13) and a positioning column (8) for limiting the movement of the torsion arm body in parallel, the torsion arm body comprises a connecting arm (5) and a first cover cap (2) and a second cover cap (10) mounted at both ends of the connecting arm (5), one end of the fixed column (13) can be inserted into the first cover cap (2), and a storage space for accommodating the top end of the positioning column (8) is provided on the connecting arm (5); A clamping block (4) for clamping the connecting arm (5) is also installed on the base (1).

2. A fixture for processing a spline groove in a torsion arm according to claim 1, characterized in that: The connecting arm (5) is symmetrically provided with arm grooves (7) on both sides, and the storage space is formed in one of the arm grooves (7).

3. A fixture for machining a spline groove in a torsion arm according to claim 1, characterized in that: Two guide rods (9) are movably penetrated at both ends of the clamping block (4), and the bottom ends of the two guide rods (9) can be detachably mounted on the base (1).

4. A fixture for machining a spline groove in a torsion arm according to claim 3, characterized in that: At least one fastening bolt (11) is provided on the clamping block (4), and one end of the fastening bolt (11) can abut against one of the guide rods (9).

5. A fixture for machining a spline groove in a torsion arm according to claim 4, characterized in that: Both ends of the clamp block (4) are penetrated by through holes (15) for accommodating the corresponding guide rods (9), and the outside of the clamp block (4) is provided with a second threaded hole (14) communicating with the through hole (15).

6. A fixture for machining a spline groove in a torsion arm according to claim 5, characterized in that: The fastening bolt (11) is threadedly installed in the second threaded hole (14).

7. A fixture for machining a spline groove in a torsion arm according to claim 6, characterized in that: Two first threaded holes (12) are provided on the top of the base (1), and the two first threaded holes (12) are respectively arranged on both sides of the connecting arm (5).

8. A fixture for machining a spline groove in a torsion arm according to claim 7, characterized in that: The bottom ends of the two guide rods (9) are respectively screwed into corresponding first threaded holes (12).

9. The fixture for machining the spline groove in a torsion arm according to claim 1, characterized in that: The first cover cap (2) and the second cover cap (10) are respectively penetrated by a first through hole (3) and a second through hole (6); the first cover cap (2) is sleeved on the fixing column (13) through the first through hole (3).

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