CN218904390U - Positioning Fixtures for Triangular Workpieces - Google Patents

Abstract

The utility model relates to a positioning fixture for triangular workpieces, which includes a bottom bracket, on which a fixed seat is arranged, and the fixed seat cooperates with a sliding seat that is horizontally slidably connected to the bottom bracket, and a pressing plate is hinged on the sliding seat, which can The inclined side of the triangular workpiece is used for top pressure limit, and it also includes a clamping mechanism set on the bottom support, which can use two clamping plates that move towards each other synchronously or relatively to complete the clamping of the end surface of the workpiece, and ensure that the workpiece is positioned at the At the center of the fixture, the stability of the workpiece clamping is improved, and a mechanism for clamping the workpiece is also provided. The clamping of the workpiece when it is laid flat is completed through two lower pressure plates, which improves the applicability of the workpiece placement position. The structure of the mechanism for clamping parts in the utility model is simple, and the part protruding from the bottom bracket is optimized, and the screws used for positioning are all recessed in the end surface of the plate, which can minimize the interference of the clamp on the machine tools .

Description

Positioning Fixtures for Triangular Workpieces

technical field

The utility model belongs to the technical field of mechanical processing, in particular to a positioning fixture for triangular workpieces.

Background technique

In the field of modern mechanical processing, when various types of machine tools are used to process workpieces, it is often necessary to set corresponding fixtures according to the workpieces to be processed. Reasonably designed fixtures can not only facilitate machine tool processing, but also improve processing accuracy;

Chinese invention patent application CN105058124A provides a workpiece for clamping a triangular workpiece, which can use a cylinder to drive a clamping plate to clamp the workpiece, and a pressure plate hinged on the clamping plate can clamp the inclined side of the triangular workpiece The top touch completes the limited clamping of the workpiece. Inspired by it, when trying to use this kind of workpiece structure to clamp the workpiece, it is found that it cannot ensure that the part is in the center of the fixture, and its clamping limit on the side of the workpiece It does not have the function of adjustment and cannot satisfy the clamping of workpieces with different thicknesses, so that the clamping mechanism is not stable and reliable. At the same time, the structure of the mechanism for clamping the workpiece protrudes too much, which is easy to interfere with the machine tool. knives.

Utility model content

In view of the above situation, the purpose of this utility model is to provide a positioning fixture for a triangular body workpiece, which solves the problem that the clamping mechanism provided by the existing triangular body workpiece fixture is not simple enough, and it is easy to interfere with the tool of the machine tool. The clamping is not stable and reliable enough.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions:

The content part of the utility model: the positioning fixture for the triangular body workpiece, including the bottom support, is characterized in that the bottom support is provided with a fixed seat, and the side of the fixed seat is provided with a sliding seat that is horizontally slidably connected to the bottom support. A top plate is longitudinally hinged on the sliding seat, a clamping mechanism arranged on the bottom support is arranged between the fixed seat and the sliding seat, and a pressing mechanism arranged on the bottom support is also included;

The clamping mechanism includes two symmetrically arranged clamping plates that are slidably connected to the bottom bracket. The two clamping plates are provided with racks. gear, any one of the clamping plates is rotatably fitted with a second screw threaded with the bottom support.

The beneficial effects of the utility model:

1. The utility model includes a bottom bracket, on which a fixed seat is arranged, and the fixed seat cooperates with a sliding seat that is horizontally slidably connected to the bottom bracket. Side pressure limit;

2. The utility model also includes a clamping mechanism arranged on the bottom bracket, which can use two clamping plates that move towards each other synchronously or relatively to complete the clamping of the end face of the workpiece, and ensure that the workpiece is located at the center of the fixture, improving the grip on the workpiece. clamping stability;

3. The utility model is also equipped with a mechanism for clamping the workpiece, and the clamping of the workpiece when it is placed flat is completed through two lower pressing plates, which improves the applicability of the workpiece placement position;

4. The structure of the mechanism for clamping the parts in the utility model is simple, and the part protruding from the bottom support is optimized, and the screws used for position limitation are all recessed in the end surface of the plate, which can reduce the impact of the clamp on the machine tool as much as possible. Tool interference.

Description of drawings

Fig. 1 is the front view of the utility model.

Fig. 2 is a perspective view of the utility model.

Fig. 3 is a partial structural view of the utility model.

Fig. 4 is a partial structural view II of the utility model.

Fig. 5 is a partial structural view three of the utility model.

Fig. 6 is a partial structural view four of the utility model.

In the figure, 1. bottom support; 2. fixed seat; 3. sliding seat; 4. top block; 5. T-shaped slot; 6. T-shaped block; 7. first screw rod; 8. screw sleeve; 9. spring; 10. Clamping plate; 11. Rack; 12. Gear; 13. Second screw; 14. First pressing rod; 15. Third screw; 16. Support platform; 17. Second pressing rod; 18. Fourth Screw rod; 19, the fifth screw rod; 20, boss.

Detailed ways

Below in conjunction with accompanying drawing 1-6, the specific embodiment of the utility model is described in further detail.

When the utility model is implemented, in conjunction with accompanying drawings 1-6, the positioning fixture for triangular body workpieces includes a bottom support 1, and a fixed seat 2 is arranged on the bottom support 1, and a lateral sliding connection is arranged on the side of the fixed seat 2. The sliding seat 3 on the bottom support 1 is preset, and two T-shaped slots 5 arranged symmetrically are opened on the bottom support 1, and the T-shaped block 6 provided on the sliding seat 3 slides with the T-shaped slot 5 Cooperate, satisfies the mutual cooperation of T-shaped block 6 and T-shaped groove 5 so that sliding seat 3 can only carry out lateral sliding on bottom support 1, first screw rod 7 is rotationally connected in two described T-shaped grooves 5 respectively, Preset, the two first screw rods 7 pass through the T-shaped block 6 and are rotatably connected to the bottom bracket 1, and the two first screw rods 7 are synchronously connected by transmission. Preset, in this embodiment, the two The first screw rods 7 are respectively fixedly connected with pulleys, and the two pulleys are connected by a belt, so that the two first screw rods 7 can rotate synchronously. The two first screw rods 7 are threaded with two For the screw sleeve 8 that drives the sliding seat 3 to slide, that is, when any one of the two first screw rods 7 is driven to rotate, the other first screw rod 7 will also rotate synchronously, so that the two first screw rods 7 can Synchronously drives the threaded sleeve 8 that cooperates with it to slide, so that the two threaded sleeves 8 can jointly contact the top sliding seat 3, thereby driving the sliding seat 3 to slide horizontally. Preset, the sliding seat 3 and the bottom There is a spring 9 sleeved on the first screw rod 7 between the brackets 1, so that the sliding seat 3 can always keep in contact with the two screw sleeves 8 through the spring 9, so that the reset of the sliding seat 3 can be guaranteed. In the embodiment, the sliding seat 3 cooperates with the fixed seat 2 so that the triangular workpiece can be vertically placed on the bottom support 1. Preset, in order to adapt to the inclined side of the triangular workpiece, the sliding seat 3 is longitudinally hinged with The top plate 4 satisfies that the corresponding rotation can occur after the top plate 4 contacts the side of the triangular body workpiece, so as to be attached to the side of the triangular body workpiece. Preset, the hinge shaft of the top plate 4 is sleeved with a torsion spring , when the top plate is in the initial state, it will ensure that the end face of the top plate 4 is in a vertical state under the action of the torsion spring. During this process, it should be ensured that a section of the obtuse angle in the triangular workpiece faces upwards, so as to ensure that the triangular workpiece can be placed on the bottom support 1 more firmly. The top plate 4 will rotate downwards (according to the accompanying drawing 1, it can be understood as clockwise rotation), so that the top plate 4 can ensure the vertical limit of the triangular workpiece. When clamping, the other side of the triangular workpiece The corner placed on the bottom support 1 will make top contact with the fixed seat 2;

Preset, in order to ensure that the triangular workpiece can be stably limited on the bottom bracket 1, a clamping mechanism arranged on the bottom bracket 1 is arranged between the fixed seat 2 and the sliding seat 3, and the clamping mechanism includes Two symmetrical sets are slidingly connected to the clamping plate 10 on the bottom bracket 1. By default, the two clamping plates 10 form a "["-shaped structure, and the two clamping plates 10 can slide longitudinally to complete the triangular shape. The clamping of the workpiece is preset. Two racks 11 are arranged on the two clamping plates 10, and a gear 12 vertically hinged on the bottom bracket 1 is arranged between the two racks 11, satisfying two The clamping plate 10 can only carry out relative or separated synchronous movement, thereby ensuring that the triangular body workpiece can be positioned at the center of the bottom support 1. Preset, any one of the clamping plates 10 is rotated and matched with the bottom support 1. The second screw rod 13 that is threadedly connected meets the requirement that the second screw rod 13 can drive the two clamping plates 10 to move relative to each other to complete the clamping of the workpiece;

It also includes a pressing mechanism arranged on the bottom support 1, the pressing mechanism includes a first pressing plate 14 that is vertically slidably fitted on the fixed seat 2, and the preset position of the first pressing plate 14 is located toward the sliding On the other side of the seat 3, the first pressing plate 14 is rotated and fitted with a third screw 15 that is threadedly connected to the bottom support 1, so that the first pressing plate 14 can be driven down by the third screw 15 to limit the position. It includes a support platform 16 that is horizontally slidably connected to the bottom bracket 1, and a second pressure plate 17 is vertically slidably fitted on the support platform 16, and a fourth pressure plate 17 that is screwed on the bottom bracket 1 is rotatably fitted on the second pressure plate 17. Screw rod 18, the fifth screw rod 19 that is threadedly connected in the bottom support 1 is fitted on the support table 16, so that the fifth screw rod 19 can drive the support table 16 to move to the fixed seat 2, thereby placing it on the fixed seat 2 Clamping with the workpiece on the support platform 16, preset, the boss 20 is placed under the first press plate 14 and the second press plate 17, that is, the support platform 16 and the bottom bracket 1 are arranged under the two press plates There is a boss 20, and the boss 20 is used for top-touching and limiting the workpiece, so as to better satisfy the cooperation between the support table 16 and the fixed seat 2 to clamp the workpiece. It is preset that the second pressure plate 17 and the first The pressing plates 14 can cooperate with each other by rotating the third screw rod 15 and the fourth screw rod 18 respectively, so that the first pressing plate 14 and the second pressing plate 17 can slide downward to complete the downward pressure limit of the workpiece. The mechanism for clamping the workpiece on the support 1 is simple and has less interference to the machine tool. At the same time, the workpiece can be well clamped and limited by the fixture, which is worthy of promotion.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (6)

1. A positioning fixture for triangular workpieces, including a bottom support (1), characterized in that the bottom support (1) is provided with a fixed seat (2), and the side of the fixed seat (2) is provided with a lateral sliding connection The sliding seat (3) on the bottom bracket (1), the top plate (4) is hinged longitudinally on the sliding seat (3), and the bottom plate (4) is arranged between the fixed seat (2) and the sliding seat (3). The clamping mechanism on the support (1) also includes a pressing mechanism arranged on the bottom support (1); The clamping mechanism includes two symmetrically arranged clamping plates (10) that are slidably connected to the bottom bracket (1), two clamping plates (10) are provided with racks (11), and two of the teeth There is a gear (12) vertically hinged on the bottom bracket (1) between the strips (11), and any one of the clamping plates (10) is rotated and fitted with a second screw threaded with the bottom bracket (1) (13). 2. The positioning fixture for triangular workpiece according to claim 1, characterized in that, two symmetrically arranged T-shaped slots (5) are opened on the bottom bracket (1), and two T-shaped slots (5) are arranged on the sliding seat (3). The T-shaped block (6) is slidingly matched with the T-shaped slot (5), and the two T-shaped slots (5) are respectively connected with the first screw rod (7) in rotation, and the two first screw rods (7) are synchronized Transmission connection, the two first screw rods (7) are threaded with two screw sleeves (8) for driving the sliding seat (3) to slide. 3. The positioning fixture for triangular workpiece according to claim 2, characterized in that, a spring (9) sleeved on the first screw rod (7) is arranged between the sliding seat (3) and the bottom bracket (1) ). 4. The positioning fixture for triangular workpiece according to claim 1, characterized in that, the holding mechanism includes a first pressing plate (14) that is vertically slidably fitted on the fixing seat (2), and the first pressing plate ( 14) The upper rotation fits the third screw rod (15) which is threadedly connected to the bottom support (1). 5. The positioning fixture for triangular workpiece according to claim 4, characterized in that, the holding mechanism further comprises a support platform (16) laterally slidably connected to the bottom bracket (1), and the support platform (16) The upper vertical sliding fit is equipped with a second pressure plate (17), and the second pressure plate (17) is rotated and fitted with a fourth screw rod (18) threaded on the bottom support (1). On the support table (16) Rotation is fitted with the fifth screw rod (19) that is threadedly connected in the bottom bracket (1). 6 . The positioning jig for triangular workpieces according to claim 5 , characterized in that, bosses ( 20 ) are placed under the first pressing plate ( 14 ) and the second pressing plate ( 17 ).

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