Lathe hydraulic special-shaped clamp tool

Abstract

The invention relates to the technical field of lathe hydraulic tool fixtures, in particular to a lathe hydraulic special-shaped fixture tool which comprises a first special-shaped fixture block, a hydraulic oil chuck is arranged at the bottom of the first special-shaped fixture block in an abutting mode, and a machined part body is arranged in the middle of the top of the hydraulic oil chuck. According to the lathe hydraulic special-shaped clamp tool, through the arrangement of the side clamping plates, the square grooves, the movable sleeves, the movable supports, the clamping blocks, the buckling grooves, the springs and the protruding blocks, the lathe hydraulic special-shaped clamp tool can be conveniently used before the lathe hydraulic special-shaped clamp tool is matched with a lathe to conduct machining operation, and the machining efficiency is improved. The first special-shaped clamp block and the second hydraulic clamping jaw or the first hydraulic clamping jaw and the second special-shaped clamp block can be combined and assembled into a whole in sequence in a split assembly mode, different materials can be selected according to the stress conditions of different parts through the split assembly mode, the number of positions where a tool is prone to being abraded can be effectively reduced, and tool machining is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic fixtures for lathes, in particular to a hydraulic special-shaped fixture for lathes. Background Art

[0002] When lathe processing is performed, the lathe special-shaped hydraulic clamp tooling is a clamp used for lathe processing, which is particularly suitable for the processing of special-shaped parts. It realizes automatic positioning, support and clamping of the workpiece through the hydraulic system. It has the advantages of large clamping force, stable operation and easy use. The hydraulic clamp can maintain a stable clamping force under high pressure, avoid the workpiece from moving slightly during processing, and ensure the processing quality;

[0003] In the prior art, when using lathe special-shaped hydraulic clamps to fix products to be processed, spring seats are generally used to clamp and fix the products. However, considering that products are gradually changing from small-batch production to large-scale production, in the actual process of clamping and fixing products for lathe processing, there are often problems such as long spring seat clamping time, long processing time, and high props cost, which is not conducive to large-scale production of lathe time. Therefore, a lathe hydraulic special-shaped clamp is proposed to address the above problems. Summary of the invention

[0004] The object of the present invention is to provide a lathe hydraulic special-shaped clamp tooling to solve the problems of long spring seat clamping time, long processing time and high tool cost proposed in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A lathe hydraulic special-shaped fixture tooling comprises a first special-shaped fixture block, a hydraulic oil chuck is abutted at the bottom of the first special-shaped fixture block, a workpiece body is placed at the middle position of the top of the hydraulic oil chuck, a front end of the workpiece body is clamped and connected with a second special-shaped fixture block abutting against the top of the hydraulic oil chuck, the front and rear ends of the hydraulic oil chuck are respectively fixedly connected with auxiliary clamping seats, a top surface of the hydraulic oil chuck is provided with a limiting guide groove, a first hydraulic claw is provided at the upper front end of the limiting guide groove, a second hydraulic claw is provided at the upper rear end of the limiting guide groove, the first hydraulic claw and the second hydraulic The bottoms of the clamping jaws are respectively fixedly connected with push blocks slidably connected and arranged inside the limited guide groove; a center bracket integrally formed with the hydraulic oil chuck is provided at the inner center position of the limited guide groove; a hydraulic push rod is fixedly installed inside the center bracket; a transmission gear is rotatably connected to the top of the center bracket; the right side of the transmission gear is meshedly connected with a first rack fixedly connected to the first hydraulic clamping jaw; the left side of the transmission gear is meshedly connected with a second rack fixedly connected to the second hydraulic clamping jaw; the lower parts of the first hydraulic clamping jaw and the second hydraulic clamping jaw respectively extend into the interior of the limited guide groove.

[0007] Preferably, the opposite end faces of the first special-shaped clamp block and the second special-shaped clamp block are provided with a groove structure which is engaged and connected with the workpiece body, the first special-shaped clamp block and the second special-shaped clamp block are arranged between the second hydraulic clamp jaw and the first hydraulic clamp jaw, and the outer shape of the workpiece body is an "I"-shaped structure.

[0008] Preferably, an adjustable positioning block is fixedly installed on the left side of the top of the hydraulic oil chuck, an adjusting bolt is threadedly connected to the middle position of the left side of the adjustable positioning block, and the adjustable positioning block is arranged opposite to the workpiece body.

[0009] Preferably, the first hydraulic clamping jaw and the second special-shaped clamping block are arranged in abutment with each other, the first special-shaped clamping block and the second hydraulic clamping jaw are arranged in abutment with each other, and the left and right sides of the first hydraulic clamping jaw and the second hydraulic clamping jaw are respectively fixedly connected with side clamping plates.

[0010] Preferably, movable sleeves are fixedly installed at the middle and upper positions on the inner sides of the first hydraulic claw and the second hydraulic claw, respectively, a spring is provided at the inner center position of the movable sleeve, and movable brackets slidingly connected to the movable sleeves are fixedly connected at both sides of the spring, and bumps are fixedly connected to the outside of the corners of the movable brackets, and the outer shape of the bumps is a spherical structure.

[0011] Preferably, a buckle groove is provided on the end face opposite to the first special-shaped clamp block, and a clamping block is snap-connected to the inner side of the buckle groove. The clamping block is fixedly connected to the movable bracket, and the outer shape of the movable bracket is an "L"-shaped structure. The movable brackets are grouped into two groups, and a square groove is provided in the middle of the side clamp plate, and the movable bracket is arranged to pass through the interior of the square groove.

[0012] Preferably, the limiting guide groove extends to the interior of the auxiliary clamping seat, the movable end of the hydraulic push rod is fixedly connected to the push block arranged at the bottom of the first hydraulic clamping claw, the second rack and the first rack are respectively arranged inside the limiting guide groove, the second rack and the first rack are respectively slidably connected to the hydraulic oil chuck, and the center point of the transmission gear and the center point of the hydraulic oil chuck are arranged to coincide with each other.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the present invention, the side clamping plate, square groove, movable sleeve, movable bracket, clamping block, buckle groove, spring and protrusion are arranged, which will facilitate the lathe hydraulic special-shaped clamp tooling to be able to cooperate with the lathe for processing operation before the lathe is processed. Under the auxiliary limitation of the pre-positioning structure composed of the side clamping plate, square groove, movable sleeve, movable bracket, clamping block, buckle groove, spring and protrusion, the first special-shaped clamp block and the second hydraulic clamping claw or the first hydraulic clamping claw and the second special-shaped clamp block can be assembled in one piece in turn in a split assembly manner for subsequent processing and use. At the same time, this split assembly method can select different materials according to the stress conditions of different parts, can effectively reduce the parts of the tooling that are easy to wear, and is also convenient for tooling processing. Moreover, one product can be clamped each time, saving clamping time, reducing processing time, and improving work efficiency. When the product is changed, the special-shaped clamp block can be directly replaced to save costs.

[0015] 2. In the present invention, by setting the push block, center support, hydraulic push rod, transmission gear, first rack and second rack, it will be convenient for the lathe hydraulic special-shaped clamp tooling to stretch and adjust the first special-shaped clamp block and the second special-shaped clamp block through the synchronous transmission structure composed of the push block, center support, hydraulic push rod, transmission gear, first rack and second rack when in use, so that the entire clamp tooling can quickly fix the workpiece body through hydraulic drive, thereby improving the work efficiency of the entire clamp tooling to quickly fix the workpiece body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a half-cut structural schematic diagram of the hydraulic oil chuck of the present invention;

[0018] Figure 3 It is a schematic diagram of the installation structure of the workpiece body of the present invention;

[0019] Figure 4 It is a schematic diagram of the cutaway structure of the second special-shaped clamp block and the first hydraulic clamping claw of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the first hydraulic clamping claw of the present invention;

[0021] Figure 6 It is a schematic diagram of the structure of the second special-shaped clamp block of the present invention.

[0022] In the figure: 1. first special-shaped fixture block; 2. second special-shaped fixture block; 3. first hydraulic clamping jaw; 4. hydraulic oil chuck; 5. adjustable positioning block; 6. workpiece body; 7. second hydraulic clamping jaw; 8. auxiliary clamping seat; 9. limiting guide groove; 10. push block; 11. center bracket; 12. hydraulic push rod; 13. transmission gear; 14. first rack; 15. second rack; 16. side clamping plate; 17. square groove; 18. movable sleeve; 19. movable bracket; 20. clamping block; 21. buckle groove; 22. spring; 23. protrusion; 24. adjusting bolt. DETAILED DESCRIPTION

[0023] See also Figure 1-6 , the present invention provides a technical solution:

[0024] A lathe hydraulic special-shaped fixture tooling, comprising a first special-shaped fixture block 1, a hydraulic oil chuck 4 is provided at the bottom of the first special-shaped fixture block 1, a workpiece body 6 is arranged at the middle position of the top of the hydraulic oil chuck 4, a second special-shaped fixture block 2 which is provided at the front end of the workpiece body 6 and is provided at the top of the hydraulic oil chuck 4, an auxiliary clamping seat 8 is fixedly connected to the front and rear ends of the hydraulic oil chuck 4, a limiting guide groove 9 is provided at the top end surface of the hydraulic oil chuck 4, a first hydraulic clamping claw 3 is provided at the front end above the limiting guide groove 9, a second hydraulic clamping claw 7 is provided at the rear end above the limiting guide groove 9, and the bottoms of the first hydraulic clamping claw 3 and the second hydraulic clamping claw 7 are respectively A push block 10 is fixedly connected and slidably connected to the inside of the limited guide groove 9. A center bracket 11 is provided at the inner center position of the limited guide groove 9 and is integrally formed with the hydraulic oil chuck 4. A hydraulic push rod 12 is fixedly installed inside the center bracket 11. A transmission gear 13 is rotatably connected to the top of the center bracket 11. The right side of the transmission gear 13 is meshedly connected to a first rack 14 fixedly connected to the first hydraulic claw 3. The left side of the transmission gear 13 is meshedly connected to a second rack 15 fixedly connected to the second hydraulic claw 7. The lower parts of the first hydraulic claw 3 and the second hydraulic claw 7 extend to the inside of the limited guide groove 9 respectively.

[0025] like Figure 1 , Figure 3 , Figure 4 and Figure 6As shown, the opposite end faces of the first special-shaped clamp block 1 and the second special-shaped clamp block 2 are provided with a groove structure that is engaged with the workpiece body 6. The first special-shaped clamp block 1 and the second special-shaped clamp block 2 are arranged between the second hydraulic jaw 7 and the first hydraulic jaw 3. The outer shape of the workpiece body 6 is an "I"-shaped structure. After the first special-shaped clamp block 1 and the second special-shaped clamp block 2 achieve the same direction movement, the two will be engaged with the workpiece body 6 through the reserved groove structure, so as to assist the entire clamp tooling to clamp and limit the workpiece body 6; an adjustable positioning block 5 is fixedly installed on the top left side of the hydraulic oil chuck 4, and an adjusting bolt 24 is threadedly connected to the middle position of the left side of the adjustable positioning block 5. The adjustable positioning block 5 is arranged opposite to the workpiece body 6, and the setting of the adjusting bolt 24 mainly plays the role of limiting the adjustable positioning block 5.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the first hydraulic clamp 3 and the second special-shaped clamp block 2 are set in abutment with each other, and the first special-shaped clamp block 1 and the second hydraulic clamp 7 are set in abutment with each other. The left and right sides of the first hydraulic clamp 3 and the second hydraulic clamp 7 are respectively fixedly connected with side clamps 16. The lower parts of the first hydraulic clamp 3 and the second hydraulic clamp 7 are set inside the limited guide groove 9, which can make the first hydraulic clamp 3 and the second hydraulic clamp 7 receive a certain guiding auxiliary effect when they are stretched in the same direction or in the opposite direction; the first hydraulic clamp 3 and the second hydraulic clamp 7 are respectively fixedly installed at the middle and upper positions of the inner sides. There is a movable sleeve 18, a spring 22 is provided at the inner center position of the movable sleeve 18, and movable brackets 19 slidably connected to the movable sleeve 18 are fixedly connected to the two sides of the spring 22, and a protrusion 23 is fixedly connected to the corner of the movable bracket 19, and the protrusion 23 is spherical in shape. The protrusion 23 is spherical in shape, which is convenient for the operator to stretch and adjust the movable bracket 19; a buckle groove 21 is provided on the opposite end surface of the second special-shaped clamp block 2 and the first special-shaped clamp block 1, and a clamping block 20 is engaged and connected to the inner side of the buckle groove 21 The block 20 is fixedly connected to the movable bracket 19. The movable bracket 19 has an "L"-shaped structure. There are two groups of movable brackets 19, each of which is a group of two. A square groove 17 is provided in the middle of the side clamp 16. The movable bracket 19 passes through the inner arrangement of the square groove 17. When the second special-shaped clamp block 2 and the first hydraulic clamp 3 are fixed together by bolts, the retractable adjustment setting of the movable bracket 19 can facilitate the block 20 to fit into the inner part of the buckle groove 21, and pre-position the installation of the second special-shaped clamp block 2; the guide groove 9 is limited to extend to the inner part of the auxiliary clamp seat 8 The movable end of the hydraulic push rod 12 is fixedly connected to the push block 10 arranged at the bottom of the first hydraulic clamping jaw 3, the second rack 15 and the first rack 14 are respectively arranged inside the limiting guide groove 9, the second rack 15 and the first rack 14 are respectively slidably connected to the hydraulic oil chuck 4, the center point of the transmission gear 13 and the center point of the hydraulic oil chuck 4 are coincident, when the first rack 14 moves back and forth with the first hydraulic clamping jaw 3, the transmission gear 13 will be subjected to the transmission effect, and it will move synchronously with the second rack 15, so that the second hydraulic clamping jaw 7 can achieve relative movement.

[0027] Workflow: The hydraulic drive components required for the startup operation of the present invention can be pre-connected to the hydraulic station before use. At the same time, the entire fixture needs to be assembled to the processing lathe before use. Before using the lathe hydraulic special-shaped fixture to fix the workpiece body 6 to be processed, the entire fixture needs to be assembled. First, Figure 1 , Figure 3 and Figure 4As shown, while ensuring that a suitable installation space is reserved between the second hydraulic claw 7 and the first hydraulic claw 3, first, under the limitation of the square groove 17, the movable bracket 19 is pulled outward by holding the protrusion 23 in the direction away from the first hydraulic claw 3, and a single clamping block 20 is accurately aligned with the buckle groove 21 and is clamped in the buckle groove 21, and then the pulling of the protrusion 23 is withdrawn in turn, and the spring 22 will reset and rebound, so that the movable bracket 19 with the clamping block 20 is stretched in the direction close to the first hydraulic claw 3, and the first hydraulic claw 3 will move toward the depth of the buckle groove 21, thereby contacting with the buckle plate provided on one side of the buckle groove 21, and then the buckle plate 20 can be pressed. In the same way, another clamp block 20 is defined, so that the second special-shaped clamp block 2 is pressed against the first hydraulic claw 3 and placed flat on the hydraulic oil chuck 4. At this time, the second special-shaped clamp block 2 can be accurately placed, so that the first hydraulic claw 3 and the second special-shaped clamp block 2 can be accurately assembled together by bolts, and the first special-shaped clamp block 1 and the second hydraulic claw 7 can be assembled and connected together in the same assembly method as above, and then the adjustable positioning block 5 is placed on the top left side of the hydraulic oil chuck 4, and the adjusting bolt 24 is screwed out, and then the adjustable positioning block 5 and the adjusting bolt 24 are fixed together by the adjusting bolt 24, and the adjustable positioning block 5 is also completely The whole fixture can be assembled and installed, and the whole fixture can be assembled in parts. When the fixture is used to fix the workpiece body 6 to be processed, first, under the connection of the limiting guide groove 9, the auxiliary clamping seat 8, the center bracket 11 and the hydraulic oil chuck 4, the hydraulic push rod 12 is started to push the single push block 10 connected to the first hydraulic clamping jaw 3 forward, so that the second hydraulic clamping jaw 7 and the first hydraulic clamping jaw 3 can slide in the opposite direction, and the gap between the two becomes larger. Then, the workpiece body 6 is placed flat at the center position of the hydraulic oil chuck 4, that is, between the first special-shaped clamp block 1 and the second special-shaped clamp block 2, and the workpiece body 6 and the adjustable positioning block 5 are also abutted against each other through position adjustment. At the same time, start the hydraulic push rod 12 again to pull back the single push block 10 connected to the first hydraulic jaw 3, so that the first hydraulic jaw 3 moves backward with the second special-shaped clamp block 2 and the transmission gear 13 toward the position of the workpiece body 6. At this time, under the meshing transmission action of the first rack 14, the second rack 15 will move forward with the second hydraulic jaw 7 and the first special-shaped clamp block 1 toward the position of the workpiece body 6, so that the second special-shaped clamp block 2 and the first special-shaped clamp block 1 can be clamped together with the workpiece body 6, so as to cooperate with the entire clamp tooling to fix the workpiece body 6, which is convenient for the later lathe to perform stable processing operations on the workpiece body 6.

[0028] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above are only preferred implementation methods of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A lathe hydraulic special-shaped fixture tool, comprising a first special-shaped fixture block (1), characterized in that: A hydraulic oil chuck (4) is provided at the bottom of the first special-shaped fixture block (1), a workpiece body (6) is arranged at the middle position of the top of the hydraulic oil chuck (4), a front end of the workpiece body (6) is engaged with a second special-shaped fixture block (2) provided at the top of the hydraulic oil chuck (4), front and rear ends of the hydraulic oil chuck (4) are respectively fixedly connected with auxiliary clamping seats (8), a limiting guide groove (9) is provided on the top surface of the hydraulic oil chuck (4), a first hydraulic clamping claw (3) is provided at the upper front end of the limiting guide groove (9), a second hydraulic clamping claw (7) is provided at the upper rear end of the limiting guide groove (9), and the bottoms of the first hydraulic clamping claw (3) and the second hydraulic clamping claw (7) are respectively fixedly connected with sliding connection devices. A push block (10) is disposed inside a limited guide groove (9); a center bracket (11) formed integrally with a hydraulic oil chuck (4) is disposed at a center position inside the limited guide groove (9); a hydraulic push rod (12) is fixedly mounted inside the center bracket (11); a transmission gear (13) is rotatably connected to the top of the center bracket (11); a first rack (14) fixedly connected to a first hydraulic clamping claw (3) is meshed on the right side of the transmission gear (13); a second rack (15) fixedly connected to a second hydraulic clamping claw (7) is meshed on the left side of the transmission gear (13); and the lower parts of the first hydraulic clamping claw (3) and the second hydraulic clamping claw (7) respectively extend into the interior of the limited guide groove (9).

2. The lathe hydraulic special-shaped fixture according to claim 1, characterized in that: The first special-shaped clamp block (1) and the second special-shaped clamp block (2) have opposite end surfaces provided with groove structures that are engaged and connected with the workpiece body (6); the first special-shaped clamp block (1) and the second special-shaped clamp block (2) are arranged between the second hydraulic clamping jaw (7) and the first hydraulic clamping jaw (3); and the workpiece body (6) has an "I"-shaped structure.

3. The lathe hydraulic special-shaped fixture according to claim 1, characterized in that: An adjustable positioning block (5) is fixedly mounted on the left side of the top of the hydraulic oil chuck (4), an adjusting bolt (24) is threadedly connected to the middle position of the left side of the adjustable positioning block (5), and the adjustable positioning block (5) is arranged directly opposite to the workpiece body (6).

4. The lathe hydraulic special-shaped fixture according to claim 1, characterized in that: The first hydraulic clamping jaw (3) and the second special-shaped clamping block (2) are arranged to abut against each other, and the first special-shaped clamping block (1) and the second hydraulic clamping jaw (7) are arranged to abut against each other, and the left and right sides of the first hydraulic clamping jaw (3) and the second hydraulic clamping jaw (7) are respectively fixedly connected with side clamping plates (16).

5. The lathe hydraulic special-shaped fixture according to claim 1, characterized in that: A movable sleeve (18) is fixedly installed at the middle and upper positions of the inner sides of the first hydraulic clamping claw (3) and the second hydraulic clamping claw (7), respectively; a spring (22) is provided at the inner center position of the movable sleeve (18), and movable brackets (19) slidably connected to the movable sleeve (18) are fixedly connected to the two sides of the spring (22), and a protrusion (23) is fixedly connected to the outside of the corner of the movable bracket (19), and the outer shape of the protrusion (23) is a spherical structure.

6. The lathe hydraulic special-shaped fixture according to claim 4, characterized in that: A buckle groove (21) is provided on an end face of the second special-shaped clamp block (2) opposite to the first special-shaped clamp block (1); a clamp block (20) is snap-connected to the inner side of the buckle groove (21); the clamp block (20) is fixedly connected to a movable bracket (19); the movable bracket (19) has an "L"-shaped structure; two sets of movable brackets (19) are provided in total, and a square groove (17) is provided in the middle of the side clamp plate (16); the movable bracket (19) is arranged to pass through the interior of the square groove (17).

7. The lathe hydraulic special-shaped fixture according to claim 1, characterized in that: The limiting guide groove (9) extends into the interior of the auxiliary clamping seat (8); the movable end of the hydraulic push rod (12) is fixedly connected to a push block (10) arranged at the bottom of the first hydraulic clamping claw (3); the second rack (15) and the first rack (14) are respectively arranged in the interior of the limiting guide groove (9); the second rack (15) and the first rack (14) are respectively slidably connected to the hydraulic oil chuck (4); and the center point of the transmission gear (13) and the center point of the hydraulic oil chuck (4) are arranged to coincide with each other.

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