Multi-station contact positioning clamp

Abstract

The utility model discloses a multi-station contact positioning clamp which comprises a contact. The contact is a rectangular body with a cylindrical end; the device further comprises a base, a bottom plate and a positioning device. The bottom plate is mounted at the top of the base; a plurality of positioning devices are arranged on the bottom plate; the positioning device comprises a fixed block, a movable block and a wedge-shaped block; the two fixing blocks are fixed to the left side and the right side of the bottom plate correspondingly. The number of the movable blocks is two, and the movable blocks are installed between the two fixed blocks in a sliding mode and slide between the two fixed blocks. The contact surface of the fixed block and the movable block is provided with a cylindrical groove used for fixing the cylindrical end of the contact. The wedge-shaped block is movably mounted on the bottom plate between the two movable blocks; a matched wedge-shaped face is arranged on the contact face of the wedge-shaped block and the movable block and used for pushing the movable block to slide towards the two sides. A plurality of stations can be clamped at a time, rapid positioning and clamping can be achieved, two machining bottom plates can be alternately used, and working hours are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of mechanical processing fixture device, concretely relates to a multi-station contact positioning fixture. BACKGROUND

[0002] In the field of mechanical processing, the vertical fixture plays a vital role, and its existence significantly improves the processing precision and work efficiency. As a device for precise positioning and stable clamping of workpieces, the vertical fixture is usually designed individually for specific parts, and there is still a lack of a universally applicable general fixture to replace it. For processing personnel, frequent replacement of fixtures, continuous tool setting and adjustment of workpieces undoubtedly consume a lot of time and energy. SUMMARY

[0003] In view of the above problems, the utility model aims at providing a contact positioning fixture which can clamp multiple parts at one time and is fast and accurate.

[0004] The utility model is realized through the following technical solutions:

[0005] A multi-station contact positioning fixture, comprising a contact; the contact is a rectangular body with a cylindrical end; further comprising a base, a bottom plate and a positioning device; the bottom plate is installed on the top of the base; a plurality of positioning devices are arranged on the bottom plate; the positioning device comprises: a fixed block, a movable block and a wedge-shaped block; the number of fixed blocks is two, which are fixed on the left and right sides of the bottom plate; the number of movable blocks is two, which are slidingly installed between the two fixed blocks and slide between the two fixed blocks; the contact surface of the fixed block and the movable block is provided with a cylindrical groove for fixing the cylindrical end of the contact; the wedge-shaped block is movably installed on the bottom plate between the two movable blocks; the wedge-shaped block is installed on the bottom plate through the locking device, and the relative position of the wedge-shaped block can be adjusted through the locking device; the opposite surface of the wedge-shaped block and the movable block is provided with a matching wedge surface for pushing the movable block to slide to both sides; two mounting columns are arranged on the bottom of the bottom plate; a protrusion is arranged on the sidewall of the bottom of the mounting column; a mounting groove matched with the mounting column is arranged on the base; a plurality of cavities are evenly distributed beside the mounting groove; two air pipes are arranged on the base, which are air inlet and air outlet respectively and communicate with the cavities; a ball corresponding to the protrusion is arranged in the cavity; a stop block with a spring is arranged below the ball for fixing the position of the ball after the ball matches the protrusion; a guide block for guiding the mounting column is arranged on the base; the locking device is a bolt; a limiting block is arranged on the top of the positioning device for limiting the contact; the limiting block is a metal sheet, both sides of which are provided with grooves corresponding to the contact, and the middle part is provided with a retreat groove; handles are arranged at both ends of the bottom plate; grooves or holes for discharging cutting fluid are arranged on the base and the bottom plate; a step is arranged on the top of the contact surface of the stop block and the ball.

[0006] The utility model discloses a beneficial effect:

[0007] The utility model discloses a beneficial effect: BRIEF DESCRIPTION OF DRAWINGS

[0008] The utility model discloses a beneficial effect:

[0009] Figure 1 The utility model discloses a beneficial effect:

[0010] Figure 2 The utility model discloses a beneficial effect:

[0011] Figure 3 The utility model discloses a beneficial effect:

[0012] The utility model discloses a beneficial effect: DETAILED DESCRIPTION

[0013] The utility model discloses a beneficial effect:

[0014] The utility model discloses a beneficial effect:

[0015] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "connect", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances. It needs to explain, the term "include", "contain" or any other variant is intended to cover non-exclusive inclusion, so that the process, method, article or equipment containing a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in such process, method, article or equipment.

[0016] As Figure 3 The utility model discloses a processing part contact 7's structure schematic diagram, the contact 7 is the rectangular body part with cylindrical end.

[0017] As Figure 1 And Figure 2 A kind of multi-station contact positioning fixture as shown in the drawings includes: base 1, installation slot 11, air pipe 12, cavity 13, ball 14, stopper 15, spring 16, guide block 17, bottom plate 2, mounting column 21, protrusion 22, positioning device, limit block 6 and contact 7.

[0018] The bottom plate 2 is installed at the top of the base 1;The bottom plate 2 is provided with a plurality of positioning devices;In order to can quickly chuck the bottom plate 2, the bottom plate 2 bottom is provided with two mounting columns 21;The sidewall on the bottom of mounting column 21 is provided with protrusion 22;The base 1 is provided with the installation slot 11 matched with mounting column 21;The guide block 17 for the guidance of mounting column 21 is arranged on the base 1;The installation slot 11 is evenly distributed with a plurality of cavities 13;The base 1 is provided with two air pipes 12, respectively for air inlet and air outlet, and is communicated with cavity 13;The cavity 13 is provided with ball 14 corresponding to protrusion 22;The stopper 15 with spring 16 is arranged at the lower side of ball 14, for fixing the position of ball 14 after ball 14 is matched with protrusion 22, when gas is passed in, ball 14 will be moved to the upper side of stopper 15 after being pressed down, and is separated from the position of protrusion 22 on mounting column 21, and mounting column 21 is in the unlocking state, after discharging gas, stopper 15 is lifted up due to the action of spring 16, and ball 14 is moved forward to the position of protrusion 22 on mounting column 21, and mounting column 21 is in the locking state, in order to better push ball 14 forward, the top of the contact surface of stopper 15 and ball 14 is provided with a step or an inclined surface;In order to facilitate the movement of bottom plate 2, the bottom plate 2 is provided with handle 21 at both ends;The base 1 and the bottom plate 2 are both provided with recess or hole for cutting fluid discharge.

[0019] The positioning device comprises two fixed blocks 3, two movable blocks 4 and a wedge-shaped block 5; the two fixed blocks 3 are fixed on the left and right sides of the bottom plate 2 respectively; the two movable blocks 4 are slidingly installed between the two fixed blocks 3 and slide between the two fixed blocks 3; the contact surface of the fixed block 3 and the movable block 4 is provided with a cylindrical groove for fixing the cylindrical end of the contact 7; the wedge-shaped block 5 is movably installed on the bottom plate 2 between the two movable blocks 4; the wedge-shaped block 5 is installed on the bottom plate 2 through a locking device, and the relative position of the wedge-shaped block 5 can be adjusted through the locking device; the locking device is a bolt; the opposite surface of the wedge-shaped block 5 and the movable block 4 is provided with a matching wedge-shaped surface for pushing the movable block 4 to slide to the two sides; when the wedge-shaped block 5 moves downward, the movable block 4 moves to the two sides and presses the cylindrical end of the contact 7; in order to more accurately position the contact 7, a limiting block 6 is arranged at the top of the positioning device for limiting the contact 7; the limiting block 6 is a metal sheet, and the two sides are provided with grooves corresponding to the contact 7; the limiting block 6 is placed above the positioning device, all the contacts 7 are clamped into the grooves on the two sides of the limiting block 6 for positioning, and a retreat groove is arranged in the middle for retreat of the wedge-shaped block 5.

[0020] The working principle of the utility model is as follows:

[0021] First, the base 1 is placed into the machine tool guide rail and fixed, the air pipe and the electromagnetic control valve are connected, the limiting plate 6 is placed on the positioning device under the machine tool, the cylindrical end of the contact 7 is installed between the fixed block 3 and the movable block 4 of the positioning device, then the wedge-shaped block 5 is locked, the movable block 4 moves to the two sides and cooperates with the fixed block 3 to lock the cylindrical end of the contact 7, the contact 7 is extruded and clamped, the electromagnetic control of the base 1 is opened, the gas flows into the air cavity, the stop block 15 is pressed downward, at this time the ball 14 moves backward to above the stop block 15, the bottom plate 2 is placed into the installation groove 1, the electromagnetic valve is closed, the stop block 15 is lifted upward due to the action of the spring 16, the ball 14 moves forward to the position of the protrusion 22 on the mounting column 21, the mounting column 21 is in a locked state, the bottom plate 2 is clamped, then the tool is clamped and the machining is started, when the machine tool is machining, the operator can clamp the second bottom plate 2, when the first bottom plate 2 is machined, the second bottom plate 2 is replaced for machining according to the above steps, so that a large amount of time is saved, and the actual use efficiency of the machine tool is improved.

[0022] The protection scope of the utility model is not limited to the technical solutions disclosed in the specific embodiments, and any modification, equivalent replacement, improvement and the like made according to the technical essence of the utility model to the above embodiments all fall within the protection scope of the utility model.

Claims

1. A multi-station contact positioning fixture, comprising a contact (7); the contact (7) is a rectangular body with a cylindrical end; characterized in that: The device includes a base (1), a base plate (2), and a positioning device. The base plate (2) is installed on the top of the base (1). Several positioning devices are provided on the base plate (2). Each positioning device includes a fixed block (3), a movable block (4), and a wedge block (5). There are two fixed blocks (3), which are fixed on the left and right sides of the base plate (2). There are two movable blocks (4), which are slidably installed between the two fixed blocks (3) and can slide between the two fixed blocks (3). The wedge block (5) is movably installed on the base plate (2) between the two movable blocks (4). The contact surface between the wedge block (5) and the movable block (4) is provided with a matching wedge surface, which is used to push the movable block (4) to slide to both sides. The wedge block (5) is installed on the base plate (2) by a locking device, and the relative position of the wedge block (5) can be adjusted by the locking device.

2. The multi-station contact positioning fixture according to claim 1, characterized in that... The bottom of the base plate (2) is provided with two mounting posts (21); the bottom side wall of the mounting posts (21) is provided with a protrusion (22); the base (1) is provided with a mounting groove (11) that matches the mounting posts (21); several cavities (13) are evenly distributed next to the mounting groove (11); the base (1) is provided with two air pipes (12), which are respectively air inlet and air outlet, and are connected to the cavity (13); the cavity (13) is provided with a ball (14) corresponding to the protrusion (22); a stop block (15) with a spring (16) is provided on the lower side of the ball (14) to fix the position of the ball (14) after the ball (14) matches the protrusion (22).

3. A multi-station contact positioning fixture according to claim 2, characterized in that... The top of the contact surface between the stop (15) and the ball (14) is provided with a step.

4. A multi-station contact positioning fixture according to claim 2, characterized in that... The base (1) is provided with a guide block (17) for guiding the mounting column (21).

5. A multi-station contact positioning fixture according to claim 1, characterized in that... The positioning device is provided with a limit block (6) on the top for limiting the contact (7).

6. A multi-station contact positioning fixture according to claim 5, characterized in that... The limiting block (6) is a metal sheet with grooves on both sides corresponding to the contact (7) and a relief groove in the middle.

7. A multi-station contact positioning fixture according to claim 1, characterized in that... The base plate (2) has handles at both ends.

8. A multi-station contact positioning fixture according to claim 1, characterized in that... The locking device is a bolt.

9. A multi-station contact positioning fixture according to claim 1, characterized in that... The base (1) and the bottom plate (2) are both provided with grooves or holes for the discharge of cutting fluid.

10. A multi-station contact positioning fixture according to claim 1, characterized in that... The fixed block (3) and the movable block (4) are provided with cylindrical grooves on their opposite sides for fixing the cylindrical end of the contact (7).

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