Mechanical clamping and positioning device for special-shaped parts

Abstract

The utility model discloses a special-shaped part mechanical clamping and positioning device, and relates to the technical field of special-shaped part clamping. The special-shaped part mechanical clamping and positioning device comprises a supporting base, a clamping mechanism and a reinforcing mechanism, a cavity is formed in the supporting base, and strip-shaped openings are formed in the two sides of the supporting base; the clamping mechanism is arranged at the top of the supporting base and comprises a movable block, a limiting rod, U-shaped rods and a clamping block, the inner walls of the two sides of the cavity are fixedly connected with the two ends of the limiting rod correspondingly, the outer wall of the limiting rod is slidably connected with the interior of the movable block, and the front side and the rear side of the movable block are fixedly connected with one ends of the U-shaped rods correspondingly; the other ends of the two sets of U-shaped rods penetrate through the strip-shaped opening and are fixedly connected with the front side and the rear side of the clamping block. And the reinforcing mechanism is arranged above the supporting base. And the positions of the clamping blocks can be adjusted at will, four-point contact can be formed for special-shaped parts of different shapes, the clamping stability is further improved, and the usable range of the device is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping of special-shaped parts, and particularly relates to a mechanical clamping and positioning device for special-shaped parts. Background Technique

[0002] Chinese patent document CN217702386U discloses a clamping and positioning tooling for special-shaped parts, which includes a reference base plate, a first positioning block, a second positioning block, a movable inclined block and a screw rod. There are two first positioning blocks, and the two first positioning blocks are fixed on the reference base plate along the length direction of the reference base plate. A receiving space is formed between the two first positioning blocks and the reference base plate. The movable inclined block is located on the reference base plate on the side far from the first positioning block. A threaded hole corresponding to the screw rod is provided in the movable inclined block. The movable inclined block is detachably fixed on the reference base plate through the cooperation of the screw rod and the threaded hole. The second positioning block is located on the reference base plate between the first positioning block and the movable inclined block and is located outside the first positioning block. The clamping and positioning tooling described in the utility model can meet the clamping and positioning of special-shaped parts with uneven bottom surfaces, has a simple structure, is convenient to operate and use, has strong practicability, and is suitable for popularization and application.

[0003] When the above-mentioned clamping and positioning tooling for special-shaped parts is in use, due to the fixed positions of the positioning blocks, the space formed between the positioning blocks is not convenient for clamping special-shaped parts with different sizes and shapes, reducing the available range of the device and lowering the flexibility and practicability of the device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a mechanical clamping and positioning device for special-shaped parts, which can solve the problem that when the above-mentioned clamping and positioning tooling for special-shaped parts is in use, due to the fixed positions of the positioning blocks, the space formed between the positioning blocks is not convenient for clamping special-shaped parts with different sizes and shapes, reducing the available range of the device and lowering the flexibility and practicability of the device.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A mechanical clamping and positioning device for special-shaped parts, which includes a support base, a clamping mechanism and a reinforcement mechanism. A cavity is opened inside the support base, and strip-shaped openings are opened on both sides of the support base; the clamping mechanism is arranged on the top of the support base, and the clamping mechanism includes a movable block, a limiting rod, a U-shaped rod and a clamping block. Both inner walls of the two sides of the cavity are fixedly connected to both ends of the limiting rod respectively. The outer wall of the limiting rod is slidably connected to the inside of the movable block. The front and rear sides of the movable block are respectively fixedly connected to one end of a group of U-shaped rods. The other ends of the two groups of U-shaped rods pass through the strip-shaped openings and are fixedly connected to the front and rear sides of the clamping block; the reinforcement mechanism is arranged above the support base, and the reinforcement mechanism includes a connecting plate and a threaded rod. The inside of the connecting plate is threadedly connected to the outer wall of the threaded rod, and the threaded rod is vertically arranged with respect to the connecting plate.

[0006] Preferably, the clamping mechanism further includes a brake motor and a bidirectional lead screw. The two inner walls on both sides of the cavity are respectively rotatably connected to both ends of the bidirectional lead screw. A brake motor is fixedly installed on one side of the support base, and the output shaft of the brake motor is fixedly connected to one end of the bidirectional lead screw. The outer wall of the bidirectional lead screw is threadedly connected to the inside of the movable block, which can arbitrarily adjust the position of the clamping block and is convenient for clamping special-shaped parts of different sizes.

[0007] Preferably, the reinforcement mechanism further includes a positioning block and an auxiliary knob. The front and rear sides of the connecting plate are slidably connected to the inside of the clamping block. A positioning block is fixedly installed at one end of the threaded rod, and an auxiliary knob is fixedly installed at the other end of the threaded rod, which can form four-point contact with special-shaped parts of different shapes, further improving the clamping stability, increasing the available range of the device, and improving the flexibility and practicality of the device.

[0008] Preferably, anti-slip rubber pads are provided on the adjacent sides of the clamping blocks and the adjacent sides of the positioning blocks to protect the special-shaped parts and prevent scratches on the surface of the parts caused by extrusion or friction.

[0009] Preferably, a supporting annular plate is fixedly installed on the top of the support base.

[0010] Preferably, multiple groups of positioning pieces are fixedly installed on the bottom of the support base.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] For this special-shaped part mechanical clamping and positioning device, through the coordinated use of a brake motor, a bidirectional lead screw, a movable block, a limiting rod, a U-shaped rod and a clamping block, the position of the clamping block can be arbitrarily adjusted, which is convenient for clamping special-shaped parts of different sizes; through the coordinated use of a connecting plate, a threaded rod, a positioning block and an auxiliary knob, four-point contact can be formed with special-shaped parts of different shapes, further improving the clamping stability, increasing the available range of the device, and improving the flexibility and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further illustrates the present utility model in conjunction with the drawings and embodiments:

[0014] Figure 1 is a three-dimensional structural diagram of the present utility model;

[0015] Figure 2 is a three-dimensional structural diagram of the support base of the present utility model;

[0016] Figure 3 is a three-dimensional structural diagram of the clamping block of the present utility model.

[0017] Reference numerals: 1, support base; 2, cavity; 3, clamping mechanism; 301, brake motor; 302, bidirectional lead screw; 303, movable block; 304, limiting rod; 305, U-shaped rod; 306, clamping block; 4, reinforcement mechanism; 401, connecting plate; 402, threaded rod; 403, positioning block; 404, auxiliary knob; 5, anti-slip rubber pad; 6, supporting annular plate; 7, positioning piece. Detailed implementation manners

[0018] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be construed as a limitation on the protection scope of the present invention.

[0019] Please refer to Figures 1-3 , the present invention provides a technical solution: a mechanical clamping and positioning device for special-shaped parts, including a support base 1, a clamping mechanism 3 and a reinforcement mechanism 4. A cavity 2 is opened inside the support base 1, and strip-shaped openings are opened on both sides of the support base 1; the clamping mechanism 3 is arranged on the top of the support base 1. The clamping mechanism 3 includes a movable block 303, a limiting rod 304, a U-shaped rod 305 and a clamping block 306. Both inner walls of the cavity 2 are fixedly connected to both ends of the limiting rod 304, and the outer wall of the limiting rod 304 is slidably connected to the inside of the movable block 303. The front and rear sides of the movable block 303 are respectively fixedly connected to one end of a group of U-shaped rods 305. The other ends of the two groups of U-shaped rods 305 pass through the strip-shaped openings and are fixedly connected to the front and rear sides of the clamping block 306; the reinforcement mechanism 4 is arranged above the support base 1. The reinforcement mechanism 4 includes a connecting plate 401 and a threaded rod 402. The inside of the connecting plate 401 is threadedly connected to the outer wall of the threaded rod 402, and the threaded rod 402 is vertically arranged with respect to the connecting plate 401.

[0020] The clamping mechanism 3 further includes a brake motor 301 and a bidirectional lead screw 302. Both inner walls of the cavity 2 are rotatably connected to both ends of the bidirectional lead screw 302. A brake motor 301 is fixedly installed on one side of the support base 1. The output shaft of the brake motor 301 is fixedly connected to one end of the bidirectional lead screw 302. The outer wall of the bidirectional lead screw 302 is threadedly connected to the inside of the movable block 303, which can arbitrarily adjust the position of the clamping block 306, facilitating the clamping of special-shaped parts of different sizes.

[0021] The reinforcement mechanism 4 further includes a positioning block 403 and an auxiliary knob 404. The front and rear sides of the connecting plate 401 are slidably connected to the inside of the clamping block 306. A positioning block 403 is fixedly installed at one end of the threaded rod 402, and an auxiliary knob 404 is fixedly installed at the other end of the threaded rod 402. Four-point contact can be formed for different-shaped special-shaped parts, further improving the clamping stability, increasing the available range of the device, and improving the flexibility and practicality of the device.

[0022] Anti-slip rubber pads 5 are provided on the adjacent sides of the clamping block 306 and the adjacent sides of the positioning block 403 to protect the special-shaped parts and prevent scratches on the surface of the parts due to extrusion or friction.

[0023] A supporting ring plate 6 is fixedly installed on the top of the supporting base 1.

[0024] Multiple groups of positioning pieces 7 are fixedly installed on the bottom of the supporting base 1.

[0025] Working principle: When the device is in use, the supporting base 1 is installed on the processing equipment through the clamping mechanism 3, and then the special-shaped part to be processed is placed on the supporting ring plate 6. The brake motor 301 is started to drive the bidirectional lead screw 302 to rotate. Under the limitation of the limiting rod 304, the two groups of movable blocks 303 are driven to slide in opposite directions on the limiting rod 304, and then the clamping block 306 is driven to move so that the anti-slip rubber pad 5 contacts the special-shaped part, and the special-shaped part is initially clamped. Then, the two groups of threaded rods 402 are rotated respectively through the auxiliary knob 404 to drive the two groups of positioning blocks 403 to move so that they all contact the special-shaped part, forming a four-point clamping of the special-shaped part to achieve further fixation.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can be made without departing from the purpose of the present invention.

Claims

1. A mechanical clamping and positioning device for special-shaped parts, characterized in that: include: A support base (1), wherein a cavity (2) is provided inside the support base (1), and strip-shaped openings are provided on both sides of the support base (1); The clamping mechanism (3) is arranged on the top of the supporting base (1), and comprises a movable block (303), a limiting rod (304), a U-shaped rod (305) and a clamping block (306); the inner walls on both sides of the cavity (2) are respectively fixedly connected to the two ends of the limiting rod (304); the outer wall of the limiting rod (304) is slidably connected to the inside of the movable block (303); the front and rear sides of the movable block (303) are respectively fixedly connected to one end of a group of U-shaped rods (305); the other ends of the two groups of U-shaped rods (305) pass through the strip opening and are fixedly connected to the front and rear sides of the clamping block (306); The reinforcement mechanism (4) is arranged above the support base (1), and comprises a connecting plate (401) and a threaded rod (402). The interior of the connecting plate (401) is threadedly connected to the outer wall of the threaded rod (402), and the threaded rod (402) and the connecting plate (401) are vertically arranged.

2. The mechanical clamping and positioning device for special-shaped parts according to claim 1, characterized in that: The clamping mechanism (3) also includes a brake motor (301) and a bidirectional screw rod (302); the inner walls on both sides of the cavity (2) are rotatably connected to the two ends of the bidirectional screw rod (302), the brake motor (301) is fixedly mounted on one side of the support base (1), the output shaft of the brake motor (301) is fixedly connected to one end of the bidirectional screw rod (302), and the outer wall of the bidirectional screw rod (302) is connected to the internal thread of the movable block (303).

3. The mechanical clamping and positioning device for special-shaped parts according to claim 2 is characterized in that: The reinforcement mechanism (4) further comprises a positioning block (403) and an auxiliary knob (404); the interior of the clamping block (306) is slidably connected to the front and rear sides of the connecting plate (401); one end of the threaded rod (402) is fixedly mounted with the positioning block (403); and the other end of the threaded rod (402) is fixedly mounted with the auxiliary knob (404).

4. The mechanical clamping and positioning device for special-shaped parts according to claim 3 is characterized in that: The adjacent sides of the clamping block (306) and the adjacent sides of the positioning block (403) are both provided with anti-slip rubber pads (5).

5. The mechanical clamping and positioning device for special-shaped parts according to claim 4, characterized in that: A supporting annular plate (6) is fixedly mounted on the top of the support base (1).

6. The mechanical clamping and positioning device for special-shaped parts according to claim 5, characterized in that: A plurality of sets of positioning sheets (7) are fixedly mounted on the bottom of the support base (1).

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