CN218746345U - A mechanical fixture for machining - Google Patents

Abstract

The application discloses mechanical fixture for machining relates to anchor clamps technical field. The application comprises a tooling plate, a tool holder and a tool holder, wherein a sliding hole is formed in the tooling plate; the clamping blocks are arranged on the sliding holes in a sliding mode and provided with two clamping cambered surfaces which expand outwards and respectively contact an inner ring and an outer ring of the workpiece; and the two pressing pieces are respectively linked with the two clamping blocks, when the clamping blocks move, the pressing pieces keep synchronous movement, and the pressing pieces are provided with pressing ends and press and hold the workpiece from top to bottom through the pressing ends. This application is convenient for carry out the centre gripping to annular workpiece and is fixed for annular workpiece can obtain spacing fast when carrying out multiple man-hour, has simplified spacing operation's step, is favorable to improving machining efficiency.

Description

A mechanical fixture for machining

technical field

The present application relates to the technical field of fixtures, in particular to a mechanical fixture for machining.

Background technique

Mechanical fixtures are a kind of fixtures for workpiece processing. Mechanical fixtures can be divided into general fixtures, special fixtures, combined fixtures, etc. Among them, the special fixture refers to the unique fixture designed for special products, how to deal with special-shaped parts and special structural parts. At present, the inner wall or outer wall of the ring-shaped workpiece is processed, such as deburring and polishing, cutting and segmenting, or drilling, etc. It is necessary to keep the ring-shaped workpiece stable, but the current fixture can only clamp the outer peripheral side of the ring-shaped workpiece. When performing complex processing, multiple C-clamps or G-clamps must be individually adjusted and used together. For example, when grinding the outer peripheral side, the existing clamps cannot be used, or after grinding the rest of the position, they will be clamped Adjustment, so as to grind the original clamping part, this kind of operation reduces the processing efficiency.

Utility model content

The purpose of the present application is to provide a mechanical fixture for machining in order to solve the problems raised in the above-mentioned background technology.

The application specifically adopts the following technical solutions in order to achieve the above object:

A mechanical fixture for mechanical processing, comprising a tooling plate with a sliding hole; two clamping blocks, both of which are slidably arranged on the sliding hole, and the clamping block has two outwardly expanding clamping arc surfaces, two The clamping arc surfaces are in contact with the inner ring and the outer ring of the workpiece respectively; the two lower pressing parts are respectively linked with the two clamping blocks. When the clamping blocks move, the lower pressing parts keep moving synchronously, and the lower pressing parts The pressing piece has a lower pressing end, through which the workpiece is pressed from top to bottom.

Further, it also includes a linkage, and the linkage includes: a screw rod, which is rotatably installed on the tooling plate, and the screw rod is configured with threads in two directions; two sliders, which are respectively threaded on the screw rod The clamping block is connected with the sliding block on the two sections of threads.

Further, the tooling board includes a first board, a second board connected to both sides of the first board and a third board connected to one side of the second board, the third board is parallel to the first board, so The sliding hole is configured on the first plate.

Further, the two second plates are configured with installation notches, and the screw rod is placed on the tooling plate through the installation notches, and is bolted to the second plates through bearing seats.

Further, the sliding block is bolted with a mounting seat, and the clamping block is threaded with the mounting seat.

Further, a support plate is connected to the slider through the same bolt, a range extender rod is installed on the support plate, a mounting plate is mounted on the range extender rod, and the pressing member includes a screw threaded with the mounting plate. Rotating rod, the end of the rotating rod is installed with a blocking block.

Further, the range extender rod is connected to the support plate with damping rotation.

Further, a movable notch is configured on the first plate.

The beneficial effects of the application are as follows:

The application is convenient for clamping and fixing the ring-shaped workpiece, so that the ring-shaped workpiece can be quickly limited when various processes are performed, the steps of the limit operation are simplified, and the processing efficiency is improved.

Description of drawings

Fig. 1 is the schematic diagram of the three-dimensional structure of the present application;

Fig. 2 is a schematic diagram of another three-dimensional structure of the present application;

Figure 3 is an enlarged view of the structure at A in Figure 2 of the present application;

Reference signs: 1, tooling plate; 101, first plate; 102, second plate; 103, third plate; 104, installation gap; 105, movable gap; 2, linkage piece; 201, screw rod; 202, slide Block; 203, mounting seat; 3, sliding hole; 4, clamping block; 401, clamping arc surface; 5, lower pressure piece; 501, rotating rod; ; 8. Mounting board.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

As shown in Fig. 1-Fig. 3, a kind of mechanical fixture for mechanical processing proposed by an embodiment of the present application includes a tooling plate 1 on which a slide hole 3 is constructed; two clamping blocks 4 are slidably arranged in the slide hole 3 Above, the clamping block 4 has two outwardly expanding clamping arc surfaces 401, and the two clamping arc surfaces 401 contact the inner ring and the outer ring of the workpiece respectively; The clamping block 4 is linked, and when the clamping block 4 moves, the pressing member 5 keeps moving synchronously, and the pressing member 5 has a pressing end, which presses and holds the workpiece from top to bottom through the pressing end; the present application The two clamping arc surfaces 401 are respectively aimed at the inner peripheral side and the outer peripheral side of the annular workpiece, that is to say, the two clamping blocks 4 can be displaced in the inner hole of the annular workpiece, and can also be located outside, which can be selected according to the processing conditions, so that It can achieve inner clamping and outer clamping, which provides applicability, and at the same time cooperates with the lower pressing part 5 linked with the clamping block 4, which can form a top-down extrusion force on the annular workpiece, so as to ensure that the workpiece is in the Stability when being processed, and because the lower pressing part 5 moves synchronously with the clamp block 4, it does not need to be adjusted too much, and it is easy to use. Therefore, this application is convenient for clamping and fixing the ring workpiece, so that the ring workpiece When various processing is performed, fast positioning can be obtained, which simplifies the steps of positioning operation and is beneficial to improve processing efficiency.

As shown in Figures 2 and 3, in some embodiments, a linkage 2 is also included, and the linkage 2 includes: a screw rod 201, which is rotatably mounted on the tooling plate 1, and the screw rod 201 is configured with Threads in two directions; two sliders 202 are threadedly installed on the two threads of the screw rod 201 respectively, and the clamp block 4 is connected with the slider 202. This application uses the screw rod 201 as the movement of the clamp block 4 Driving force, because there are two sections of threads with opposite directions, when the screw mandrel 201 rotates, the two sliders 202 will perform synchronous reverse motion, thereby adjusting the position and distance between the two clamping blocks 4 to complete the alignment For the clamping of the inner or outer wall of the annular workpiece, the rotation of the screw rod 201 can be driven manually or by a servo motor.

As shown in FIG. 1 , in some embodiments, the tooling board 1 includes a first board 101 , a second board 102 connected to both sides of the first board 101 and a third board 103 connected to one side of the second board 102 , the third plate 103 is parallel to the first plate 101, the sliding hole 3 is constructed on the first plate 101, the overall structure of the tooling plate 1 is a portal frame, and the driving parts are hidden in the portal frame , the workpiece is placed on the first plate 101, and the workpiece is supported by the first plate 101, while the third plate 103 is used to fix the entire tooling plate 1 on the workbench, and plays an installation role.

As shown in FIG. 1 , in some embodiments, installation notches 104 are configured on the two second plates 102 , and the screw rod 201 is placed on the tooling board 1 through the installation notches 104 , and is connected to the tooling board 1 through the bearing seat. The second plate 102 is connected by bolts, and the screw rod 201 in the driving part is detachably installed, which provides convenience for the assembly of the entire fixture.

In some embodiments, the sliding block 202 is bolted with a mounting seat 203, the clamp block 4 is screwed to the mounting seat 203, and the mounting seat 203 is suitable for connecting, that is to say, holding the mounting seat When 203 remains unchanged, different clamping blocks 4 can be replaced, and the threaded connection has the advantages of good connection stability and easy disassembly.

As shown in FIG. 3 , in some embodiments, a support plate 6 is connected to the slider 202 through the same bolt, a range extender rod 7 is installed on the support plate 6 , and a plate 8, the pressing member 5 includes a rotary rod 501 threadedly connected with the mounting plate 8, and the end of the rotary rod 501 is equipped with a block 502, through the cooperation of the support plate 6, the range extender rod 7 and the mounting plate 8 , the lower pressing part 5 and the clamping block 4 are linked, so that the lower pressing part 5 can keep moving synchronously with the clamping block 4, and it can also ensure that the lower pressing rod is above the workpiece. When the workpiece needs to be pressed, the Turn the rotating rod 501 to adjust the height of the rotating rod 501 so that the contact block 502 is in contact with the upper surface of the workpiece.

As shown in Figure 3, in some embodiments, the range extender 7 is connected to the support plate 6 with damping rotation, and the position of the pressing member 5 can be adjusted by using the damping rotation connection, so that the resistance can be adjusted according to the size of the workpiece. The position where the block 502 is in contact with the workpiece is designed in this way to improve the applicability of the pressing part 5 .

As shown in FIG. 1 and FIG. 3 , in some embodiments, an active notch 105 is configured on the first plate 101 , and the active notch 105 is designed to provide an active area for the movement of the range extender lever 7 .

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A mechanical clamp for machining is characterized by comprising a tool plate (1) on which a sliding hole (3) is formed; the two clamping blocks (4) are arranged on the sliding hole (3) in a sliding mode, each clamping block (4) is provided with two clamping arc surfaces (401) which expand outwards, and the two clamping arc surfaces (401) are respectively contacted with an inner ring and an outer ring of a workpiece; two pushing down pieces (5) are respectively linked with the two clamping blocks (4), when the clamping blocks (4) move, the pushing down pieces (5) keep synchronous motion, the pushing down pieces (5) are provided with pushing down ends, and the workpieces are pressed and held from top to bottom through the pushing down ends.

2. A machining chuck according to claim 1, further comprising a linkage (2), said linkage (2) comprising: the screw rod (201) is rotatably arranged on the tooling plate (1), and two sections of threads in the direction are formed on the screw rod (201); the two sliding blocks (202) are respectively installed on the two sections of threads of the screw rod (201) in a threaded mode, and the clamping block (4) is connected with the sliding blocks (202).

3. A machine clamp for machining according to claim 2, characterized in that the tooling plate (1) comprises a first plate (101), a second plate (102) attached to both sides of the first plate (101), and a third plate (103) attached to one side of the second plate (102), the third plate (103) being parallel to the first plate (101), the slide hole (3) being configured in the first plate (101).

4. A machining chuck according to claim 3, characterized in that the two second plates (102) are each formed with a mounting notch (104), and the lead screw (201) is placed on the tool plate (1) through the mounting notch (104) and is bolted to the second plate (102) through a bearing block.

5. A mechanical clamp for machining according to claim 4, characterized in that a mounting seat (203) is bolted to the slide block (202), and the clamping block (4) is in threaded connection with the mounting seat (203).

6. The mechanical clamp for machining according to claim 5, wherein a support plate (6) is connected to the sliding block (202) through the same bolt, an extended-range rod (7) is mounted on the support plate (6), a mounting plate (8) is mounted on the extended-range rod (7), the lower pressing piece (5) comprises a rotating rod (501) in threaded connection with the mounting plate (8), and a resisting block (502) is mounted at the end of the rotating rod (501).

7. A machinery clamp for machining according to claim 6, characterised in that the range extender (7) is connected in a damped rotational manner to the carrier plate (6).

8. A machine clamp according to claim 7, characterized in that said first plate (101) is provided with a movable slit (105).

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