Frame type workpiece clamping device

Abstract

The utility model discloses a frame type workpiece clamping device which comprises a base, a clamping frame is arranged on the base, a front-back clamping assembly, an up-down clamping assembly and a left-right clamping assembly are arranged on the clamping frame, and workpieces placed in the clamping frame are clamped and limited in the front-back direction, the up-down direction and the left-right direction respectively. The clamping frame is formed by combining four hollow frame plates, namely a front frame plate, a rear frame plate, a left frame plate and a right frame plate; a storage opening is formed in the front frame plate, and a workpiece can enter and exit from the clamping frame through the storage opening; the front-back clamping assembly comprises a pressing block movably arranged on the front frame plate, the pressing block can move into or out of the storage opening, and when the pressing block moves into the storage opening, the workpieces are prevented from entering and exiting. And the pressing block is rotatably arranged on the front frame plate and can be screwed in or out of the storage opening. According to the utility model, each surface of a clamped workpiece can be conveniently processed, so that repeated clamping is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to workpiece clamping limiting field especially relates to a frame type workpiece clamping device. BACKGROUND

[0002] As an important industrial general equipment, screw compressor is widely used in air power, chemical industry and other industrial fields. The host as the core component of screw compressor, its performance determines the competitiveness of the compressor, at present, the shell processing of compressor host often uses step-by-step processing, repeated clamping, which not only is low in efficiency, but also has big assembly error due to repeated clamping, so that the machining precision is also poor. SUMMARY

[0003] The utility model discloses a frame type workpiece clamping device, and the utility model discloses a frame type workpiece clamping device, which is convenient for machining each surface of the clamped workpiece, so as to reduce repeated clamping.

[0004] Technical scheme: in order to realize the above-mentioned purpose, a frame type workpiece clamping device of the utility model, including base, be provided with clamping frame on the base, be provided with front and back clamping assembly, upper and lower clamping assembly and left and right clamping assembly on the clamping frame, respectively from front and back direction, upper and lower direction and left and right direction to the workpiece clamped in the clamping frame limit position;The clamping frame is combined by four hollow frame plates of front frame plate, rear frame plate, left frame plate and right frame plate;The article mouth is set up on the front frame plate, and the workpiece can go in and out of the clamping frame from the article mouth;The front and back clamping assembly includes the compression pad movably arranged on the front frame plate, and the compression pad can be moved into or moved out of the article mouth, and the compression pad blocks the workpiece in and out when moving into the article mouth.

[0005] Further, the compression pad is rotatably arranged on the front frame plate, and the compression pad can be rotated into or rotated out of the article mouth.

[0006] Further, the compression pad is rotatably arranged on the front frame plate, and the compression pad can be rotated into or rotated out of the article mouth.

[0007] Further, the front frame plate is provided with a limiting groove, and the compression pad is pressed into the limiting groove when the locking bolt is tightened, so that the rotation of the compression pad is limited.

[0008] Further, the compression pad includes a plate part and a thick block part, the shaft hole is arranged on the thick block part, the shape of the thick block part is consistent with the shape of the limiting groove, and the thickness of the thick block part is greater than the depth of the limiting groove;When the thick block part is pressed into the limiting groove, the plate part is correspondingly moved into the article mouth, and the plate part has a certain elasticity, so that the plate part can be deformed to tightly contact the surface of the workpiece.

[0009] Further, the front and rear clamping assembly further comprises a back tightening bolt arranged in the clamping frame; the up and down clamping assembly comprises a bottom supporting bolt and a top pressing bolt arranged in the clamping frame; and the left and right clamping assembly comprises a lateral supporting block and a lateral tightening bolt arranged on both sides of the front frame plate.

[0010] Beneficial effects: the frame type workpiece clamping device has the following beneficial effects:

[0011] 1) The base is provided with a clamping frame, the clamping frame is provided with front and rear clamping assemblies, up and down clamping assemblies and left and right clamping assemblies, so that the workpiece is stably clamped in the clamping frame; the clamping frame is composed of four hollow frame plates, i.e. a front frame plate, a rear frame plate, a left frame plate and a right frame plate, so that the surface of the clamped workpiece is largely exposed, and the workpiece is conveniently machined on each surface to reduce repeated clamping;

[0012] 2) The front frame plate is provided with a storage opening, so that the front surface of the clamped workpiece is more exposed; the workpiece is limited by the movable pressing block, so that the workpiece is more conveniently put in and out of the clamping frame. BRIEF DESCRIPTION OF DRAWINGS

[0013] ATTACHED Fig. 1 It is a front structure schematic view of the frame type workpiece clamping device.

[0014] ATTACHED Fig. 2 It is a back structure schematic view of the frame type workpiece clamping device.

[0015] ATTACHED Fig. 3 It is a structure schematic view of the pressing block. DETAILED DESCRIPTION

[0016] The utility model will be further described in connection with the drawings.

[0017] As shown in the attached Figs. 1 to 3 The frame type workpiece clamping device comprises a base 1, the base 1 is provided with a clamping frame 2, the clamping frame 2 is provided with front and rear clamping assemblies, up and down clamping assemblies and left and right clamping assemblies, and the workpiece 8 placed in the clamping frame 2 is clamped and limited from the front and rear direction, the up and down direction and the left and right direction, so that the workpiece 8 can be clamped and fixed in the clamping frame 2. The clamping frame 2 is composed of four hollow frame plates, i.e. a front frame plate 3, a rear frame plate 4, a left frame plate 5 and a right frame plate 6, so that when the workpiece 8 is clamped in the clamping frame 2, the front, rear, left, right and upper surfaces of the workpiece 8 are largely exposed, so that multiple surfaces of the workpiece 8 are machined at one time, thereby reducing repeated clamping.

[0018] The front frame plate 3 is provided with a storage opening 7, and the workpiece 8 can be put in and out of the clamping frame 2 through the storage opening 7. The front and rear clamping assemblies include a pressing block 9 arranged on the front frame plate 3, and the pressing block 9 can clamp and limit the front side surface of the workpiece 8. The pressing block 9 is movably arranged on the front frame plate 3, and the pressing block 9 can be moved into or out of the storage opening 7. When the pressing block 9 is moved out of the storage opening 7, it is convenient for the workpiece 8 to be put in and out of the storage opening 7. When the pressing block 9 is moved into the storage opening 7, the pressing block 9 can block the workpiece 8 from being put in and out, and the pressing block 9 can also press the front side surface of the workpiece 8.

[0019] Due to the existence of the storage opening 7, the exposure of the front side surface of the workpiece 8 is larger, and it is convenient to process the front side surface of the workpiece 8. The pressing block 9 not only has the function of opening and closing the storage opening 7, but also can clamp and limit the front side surface of the workpiece 8 as a clamping assembly, so that the structure of the whole workpiece clamping device is more compact.

[0020] The pressing block 9 is rotatably arranged on the front frame plate 3, and the pressing block 9 can be rotated into or out of the storage opening 7.

[0021] The pressing block 9 is provided with an axle hole, and a locking bolt 10 is screwed into a screw hole on the front frame plate 3 through the axle hole. The locking bolt 10 serves as the rotating shaft of the pressing block 9, so that the pressing block 9 can rotate around the locking bolt 10. In addition, when the locking bolt 10 is screwed, that is, when the locking bolt 10 is screwed into the screw hole on the front frame plate 3, the locking bolt 10 will press the pressing block 9 against the front frame plate 3. The pressed pressing block 9 can be kept in the state of being moved into the storage opening 7, and the pressing block 9 can block the workpiece 8 from being separated from the storage opening 7.

[0022] The front frame plate 3 is provided with a limiting groove 11, and the pressing block 9 can be pressed into the limiting groove 11 when the locking bolt 10 is screwed. Under the limiting action of the limiting groove 11, the rotation of the pressing block 9 can be limited, and the pressing block 9 can further block the workpiece 8 from being separated from the storage opening 7.

[0023] As shown in the accompanying drawings, Fig. 3 The pressing block 9 includes a plate piece 12 and a thick block 13, the axle hole is arranged on the thick block 13, the shape of the thick block 13 is consistent with the shape of the limiting groove 11, and the thickness of the thick block 13 is greater than the depth of the limiting groove 11. When the thick block 13 is pressed into the limiting groove 11, the end of the locking bolt 10 is still located outside the limiting groove 11, and it is convenient for workers to rotate the locking bolt 10. In addition, when the thick block 13 is pressed into the limiting groove 11, the plate piece 12 is correspondingly moved into the storage opening 7, and the pressing block 9 blocks and presses the workpiece 8 through the plate piece 12. The plate piece 12 has a certain elasticity, and when the thick block 13 is pressed into the storage opening 7, the plate piece 12 can be deformed to tightly adhere to the surface of the workpiece 8, so that the plate piece 12 can better press the workpiece 8.

[0024] At least two pressing blocks 9 are arranged on the front frame plate 3, and the at least two pressing blocks 9 are arranged on different sides of the front frame plate 3, so that the front side surface of the workpiece 8 can be better clamped and limited by the pressing blocks 9.

[0025] The front-rear clamping assembly further comprises a back tightening bolt 14 arranged in the clamping frame 2, and the back tightening bolt 14 can be adjusted in rotation to clamp and limit the back side surface of the workpiece 8. The up-down clamping assembly comprises a bottom supporting bolt 15 and a top pressing bolt 16 arranged in the clamping frame 2, and the bottom supporting bolt 15 and the top pressing bolt 16 can also be adjusted in rotation to clamp and limit the upper and lower side surfaces of the workpiece 8. The left-right clamping assembly comprises a lateral supporting block 17 and a lateral tightening bolt 18 arranged on both sides of the front frame plate 3, as shown in the accompanying drawings, the lateral supporting block 17 has two, the lateral tightening bolt 18 also has two, and the front frame plate 3 is also provided with screw holes corresponding to the positions of the two lateral supporting blocks 17 and the two lateral tightening bolts 18, so that the lateral tightening bolts 18 can also be adjusted in rotation to clamp the left and right side surfaces of the workpiece 8 together with the lateral supporting blocks 17. Fig. 1

[0026] In an embodiment, the workpiece 8 to be clamped is a main shell of a screw press, and when the main shell is machined, the base 1 is mounted on a rotating worktable of a machine tool, the main shell is placed into the clamping frame 2 from the placing opening 7, then the bottom supporting bolt 15 is adjusted to make the upper and lower surfaces of the main shell flush, the back tightening bolt 14 is adjusted to make the front and back surfaces of the main shell flush, then the lateral tightening bolt 18 and the top pressing bolt 16 are tightened, finally the plate part 12 of the pressing block 9 is screwed into the placing opening 7, the thick block part 13 is opposite to the limiting groove 11, then the locking bolt 10 is tightened to press the main shell by the pressing block 9, so that the workpiece 8 is completely pressed, and the clamping is completed. After clamping, the rotating table is rotated, and each machining surface and hole on the main shell can be machined, so that all surfaces and holes are machined at one time, repeated clamping is reduced, and machining efficiency is improved.

[0027] The above only describes preferred embodiments of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.​

Claims

1. A frame-type workpiece holding device characterized by comprising: The utility model relates to a workpiece clamping device, including base (1), be provided with clamping frame (2) on base (1), be provided with front and back clamping assembly, upper and lower clamping assembly and left and right clamping assembly on clamping frame (2), respectively from front and back direction, upper and lower direction and left and right direction to the workpiece (8) clamping limit that put into clamping frame (2) inside, Clamping frame (2) is combined by four hollow frame plates of front frame plate (3), rear frame plate (4), left frame plate (5) and right frame plate (6);A storage opening (7) is formed in the front frame plate (3), and the workpiece (8) can enter and exit the clamping frame (2) from the storage opening (7);The front and back clamping assembly includes a pressing block (9) movably arranged on the front frame plate (3), which can be moved into or out of the storage opening (7), and the pressing block (9) blocks the workpiece (8) when it moves into the storage opening (7).

2. A frame-type workpiece holding device according to claim 1, characterized in that: The pressing block (9) is rotatably arranged on the front frame plate (3), and the pressing block (9) can be rotated into or out of the storage opening (7).

3. A frame-type workpiece holding device according to claim 2, characterized in that: An axle hole is formed in the pressing block (9), and a locking bolt (10) is screwed into a screw hole in the front frame plate (3) after passing through the axle hole, so that the pressing block (9) can rotate around the locking bolt (10), and the pressing block (9) can be pressed tightly on the front frame plate (3) when the locking bolt (10) is tightened.

4. A frame-type workpiece holding device according to claim 3, wherein: A limiting groove (11) is arranged on the front frame plate (3), and the pressing block (9) is pressed into the limiting groove (11) when the locking bolt (10) is tightened, thereby limiting the rotation of the pressing block (9).

5. A frame-type workpiece holding device according to claim 4, wherein: The pressing block (9) includes a plate part (12) and a thick block part (13), the axle hole is formed in the thick block part (13), the shape of the thick block part (13) is consistent with the shape of the limiting groove (11), and the thickness of the thick block part (13) is greater than the depth of the limiting groove (11);When the thick block part (13) is pressed into the limiting groove (11), the plate part (12) is correspondingly moved into the storage opening (7), and the plate part (12) has a certain elasticity, so that the plate part (12) can be deformed to tightly adhere to the surface of the workpiece (8).

6. A frame-type workpiece clamping apparatus according to any one of claims 1 to 5, characterized in that: The front and back clamping assembly further includes a back tightening bolt (14) arranged in the clamping frame (2);The upper and lower clamping assembly includes a bottom supporting bolt (15) and a top pressing bolt (16) arranged in the clamping frame (2);The left and right clamping assembly includes a lateral supporting block (17) and a lateral tightening bolt (18) arranged on both sides of the front frame plate (3).

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