Clamp with positioning structure

Abstract

The clamp with the positioning structure comprises a machining frame, a bottom plate, an air cylinder, an ejector rod and a positioning seat, the surface of a connecting rod is fixedly connected with a limiting assembly, and an abutting assembly is arranged on the rear side of the surface of the connecting rod. By arranging the sliding groove, the connecting rod, the L-shaped inserting piece and the inserting groove, the positioning base can be driven to move by moving the connecting rod, the connecting rod can be limited through the sliding groove, the L-shaped inserting piece can be limited through the inserting groove, and the connecting rod and the positioning base can be limited up, down, left and right through limiting of the L-shaped inserting piece; and the problems that due to the fact that the positioning bases are fixed to the machining frame, gaps between the positioning bases are fixed and cannot be adjusted, when the clamp clamps the mechanical parts of different sizes, friction is likely to happen between the mechanical parts, machining is inconvenient, and machining efficiency is high are solved. Therefore, the clamp has certain limitation in use.

Description

Technical Field

[0001] The utility model relates to the technical field of precision machining, in particular to a clamp with a positioning structure. Background Art

[0002] In the field of processing and production of mechanical equipment and parts, the use of fixtures is very frequent. Common mechanical processing equipment belongs to the scope of precision processing, and the requirements for fixtures are also higher. Mechanical fixtures are used to fix the processing object in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. They are also called fixtures.

[0003] For example, publication number CN206748266U provides a precision machining mechanical fixture, including a fixture body, a bottom plate is arranged at the bottom of the fixture body; the fixture body is in a rectangular shape; the long sides of the fixture body are cylinder support plates and positioning plates; the short sides of the fixture body are left support plates and right support plates respectively; a cylinder is arranged on one side of the long side of the fixture body; the cylinder is fixed to one side of the fixture body through the cylinder support plate; the fixture body has a hollow groove inside; the cylinder support plate is arranged on one side of the groove with a push rod corresponding to the cylinder; the positioning plate is arranged on one side of the groove with four positioning seats; the positioning seat is fixed to the positioning plate through nuts. The utility model has a simple and reasonable structural design, and is mainly used in mechanical processing. The components are connected by screw holes and nuts, which is convenient and fast.

[0004] Based on the search of patent numbers and combined with the deficiencies in the prior art, we found that:

[0005] Although the various components of this precision machining mechanical fixture are connected by screw holes and nuts, and assembly is convenient and quick, when in use, since the positioning seats are fixed on the processing frame and the gaps between the positioning seats are fixed and cannot be adjusted, it is easy to cause friction between the mechanical parts when the fixture clamps mechanical parts of different sizes, which is inconvenient for processing. Therefore, this fixture has certain limitations when in use. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a clamp with a positioning structure, which has the advantage of facilitating the adjustment and positioning of the positioning seat, and solves the problem that the positioning seat is fixed on the processing frame, and the gap between the positioning seats is fixed and cannot be adjusted, which easily leads to friction between the mechanical parts when the clamp clamps mechanical parts of different volumes, making processing inconvenient, and therefore the clamp has certain limitations when used.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixture with a positioning structure, comprising a processing frame, a base plate, a cylinder, a push rod and a positioning seat, the processing frame is fixedly installed on the top of the base plate, the back side of the positioning seat is in contact with the rear side of the inner wall of the processing frame, the cylinder is fixedly installed on the front side of the processing frame, the piston end of the cylinder is fixedly connected to an end of the push rod away from the positioning seat, the other end of the push rod passes through the processing frame and extends to the inner side of the processing frame, a sliding groove is provided on the back side of the processing frame, a connecting rod is fixedly connected to the back side of the positioning seat, the surface of the connecting rod is movably connected to the inner wall of the sliding groove, an L-shaped plug-in is slidably connected to the surface of the connecting rod, a slot is provided on the top of the back side of the processing frame, one end of the L-shaped plug-in close to the cylinder is inserted into the inside of the slot, the surface of the connecting rod is fixedly connected to a limiting component, and a tightening component is provided on the rear side of the surface of the connecting rod.

[0008] As a preferred embodiment of the utility model, the limiting assembly includes a fixing ring, support plates are fixedly connected to both sides of the surface of the fixing ring, and insertion rods are fixedly connected to both sides of the front bottom of the L-shaped plug-in, the other end of the insertion rod passes through the support plate and extends to the front side of the support plate, and the insertion rod is movably connected to the support plate.

[0009] As a preferred embodiment of the utility model, the clamping assembly includes a threaded groove, the surface of the threaded groove is threadedly connected to a knob, the surface of the connecting rod is movably connected to a clamping cylinder, one end of the clamping cylinder close to the positioning seat is tightly fitted with the rear side of the L-shaped plug-in, and the other end of the clamping cylinder is tightly fitted with the front side of the knob.

[0010] As a preferred embodiment of the utility model, the rear sides of both sides of the processing frame are fixedly connected with storage chambers, the back side of the storage chamber is provided with connecting grooves, the connecting grooves are connected with the sliding grooves, and the rear sides of both sides of the inner wall of the processing frame are provided with through openings, and the through openings are connected with the storage chambers.

[0011] As a preferred embodiment of the present invention, one end of the connecting rod away from the cylinder is fixedly connected to a fixing block, and the outer side of the fixing block is fixedly connected to a handle.

[0012] As a preferred embodiment of the utility model, a fixing frame is fixedly connected to the rear side of the storage chamber, a slide rail is provided on the rear side of the fixing frame, and an inner wall of the slide rail is slidably connected to the surface of the fixing block.

[0013] As a preferred embodiment of the utility model, a pull rod is fixedly connected to the top of the L-shaped plug-in, a protective shell is provided on the outer side of the cylinder, and the rear side of the protective shell is fixedly connected to the front side of the processing frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model provides a sliding groove, a connecting rod, an L-shaped plug-in and a slot. By moving the connecting rod, the positioning seat can be driven to move left and right. The sliding groove can limit the connecting rod. The slot can limit the L-shaped plug-in up, down, left and right. The up, down, left and right limits of the L-shaped plug-in can limit the connecting rod and the positioning seat up, down, left and right, thereby achieving the effect of positioning the positioning column and solving the problem that the positioning seat is fixed on the processing frame, and the gap between the positioning seats is fixed and cannot be adjusted, which easily leads to friction between mechanical parts when the clamp clamps mechanical parts of different volumes, making processing inconvenient. Therefore, the clamp has certain limitations when used, and achieves the effect of facilitating the adjustment and positioning of the positioning seat.

[0016] 2. The utility model sets a limit assembly, so that the connecting rod can fix and limit the fixed ring, the fixed ring can fix and limit the support plate, and the insertion rod can limit the support plate and the fixed ring up, down, left, and right. Since the slot can limit the L-shaped plug-in up, down, left, and right, it can prevent the connecting rod from driving the positioning seat to rotate.

[0017] 3. The utility model sets a tightening component, and the threaded groove is used to connect the knob and the connecting rod. At the same time, the threaded groove can fix the knob, the knob fixing limit can fix the tightening tube, and the tightening tube fixing limit can tighten the L-shaped plug-in, thereby preventing the L-shaped plug-in from moving out of the slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the three-dimensional processing frame and storage chamber of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the limiting component and the tightening component of the utility model.

[0021] In the figure: 1. processing frame; 2. bottom plate; 3. cylinder; 4. push rod; 5. positioning seat; 6. sliding groove; 7. connecting rod; 8. L-shaped plug-in; 9. slot; 10. limit assembly; 101. fixing ring; 102. support plate; 103. plug-in rod; 11. tightening assembly; 111. threaded groove; 112. knob; 113. tightening cylinder; 12. reserve chamber; 13. connecting groove; 14. through port; 15. fixing block; 16. handle; 17. fixing frame; 18. slide rail; 19. pull rod; 20. protective shell. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 3 As shown, the utility model provides a fixture with a positioning structure, including a processing frame 1, a base plate 2, a cylinder 3, a push rod 4 and a positioning seat 5. The processing frame 1 is fixedly installed on the top of the base plate 2, and the back of the positioning seat 5 is in contact with the rear side of the inner wall of the processing frame 1. The cylinder 3 is fixedly installed on the front side of the processing frame 1, and the piston end of the cylinder 3 is fixedly connected to the end of the push rod 4 away from the positioning seat 5. The other end of the push rod 4 penetrates the processing frame 1 and extends to the inner side of the processing frame 1. A sliding groove 6 is provided on the back side of the processing frame 1, and a connecting rod 7 is fixedly connected to the back side of the positioning seat 5. The surface of the connecting rod 7 is movably connected to the inner wall of the sliding groove 6, and an L-shaped plug-in 8 is slidably connected to the surface of the connecting rod 7. A slot 9 is provided on the top of the back side of the processing frame 1, and the end of the L-shaped plug-in 8 close to the cylinder 3 is inserted into the inside of the slot 9. The surface of the connecting rod 7 is fixedly connected to a limiting component 10, and a tightening component 11 is provided on the rear side of the surface of the connecting rod 7.

[0024] refer to Figure 3 The limiting assembly 10 includes a fixing ring 101, and support plates 102 are fixedly connected on both sides of the surface of the fixing ring 101. Insertion rods 103 are fixedly connected on both sides of the front bottom of the L-shaped plug-in 8. The other end of the insertion rod 103 passes through the support plate 102 and extends to the front side of the support plate 102. The insertion rod 103 is movably connected to the support plate 102.

[0025] As a technical optimization scheme of the utility model, by setting a limit assembly 10, the connecting rod 7 can fix and limit the fixing ring 101, the fixing ring 101 can fix and limit the support plate 102, and the insertion rod 103 can limit the support plate 102 and the fixing ring 101 up, down, left and right. Since the slot 9 can limit the L-shaped plug-in 8 up, down, left and right, it can prevent the connecting rod 7 from driving the positioning seat 5 to rotate.

[0026] refer to Figure 3 The tightening assembly 11 includes a threaded groove 111, a knob 112 is threadedly connected to the surface of the threaded groove 111, a tightening cylinder 113 is movably connected to the surface of the connecting rod 7, one end of the tightening cylinder 113 close to the positioning seat 5 is tightly fitted with the rear side of the L-shaped plug-in 8, and the other end of the tightening cylinder 113 is tightly fitted with the front side of the knob 112.

[0027] As a technical optimization solution of the utility model, by setting a tightening component 11, the threaded groove 111 is used to connect the knob 112 and the connecting rod 7, and at the same time, the threaded groove 111 can fix and limit the knob 112, the fixed limit of the knob 112 can fix and limit the tightening tube 113, and the fixed limit of the tightening tube 113 can tighten and limit the L-shaped plug-in 8, thereby preventing the L-shaped plug-in 8 from moving out of the slot 9.

[0028] refer to Figure 2 The rear sides of both sides of the processing frame 1 are fixedly connected with storage chambers 12, and the back of the storage chamber 12 is provided with a connecting groove 13, which is connected to the sliding groove 6, and the rear sides of both sides of the inner wall of the processing frame 1 are provided with through openings 14, which are connected to the storage chamber 12.

[0029] As a technical optimization solution of the utility model, by providing a reserve chamber 12, a connecting groove 13 and a through port 14, the connecting groove 13 and the through port 14 facilitate the user to move the connecting rod 7 and the positioning seat 5 into the reserve chamber 12. After partially moving the connecting rod 7 and the positioning seat 5 into the reserve chamber 12, the user can adjust the distance between the positioning seats 5 inside the processing frame 1 to make it wider, thereby facilitating the user to clamp larger mechanical parts.

[0030] refer to Figure 1 One end of the connecting rod 7 away from the cylinder 3 is fixedly connected to a fixing block 15 , and a handle 16 is fixedly connected to the outer side of the fixing block 15 .

[0031] As a technical optimization solution of the utility model, by setting a fixed block 15 and a handle 16, the fixed block 15 can be driven to move left and right by pulling the handle 16, and the left and right movement of the fixed block 15 can drive the connecting rod 7 to move left and right, and the left and right movement of the connecting rod 7 can drive the positioning seat 5 to move left and right, thereby facilitating the user to move the positioning seat 5 left and right.

[0032] refer to Figure 1 A fixing frame 17 is fixedly connected to the rear side of the storage chamber 12 , and a slide rail 18 is provided on the rear side of the fixing frame 17 . The inner wall of the slide rail 18 is slidably connected to the surface of the fixing block 15 .

[0033] As a technical optimization solution of the utility model, by setting a fixed frame 17 and a slide rail 18, the fixed frame 17 can support the fixed block 15, and the slide rail 18 can limit the upper and lower positions of the fixed block 15. By pulling the handle 16, the fixed block 15 can be driven to slide left and right inside the slide rail 18, thereby improving the movement stability of the fixed block 15.

[0034] refer to Figure 1A pull rod 19 is fixedly connected to the top of the L-shaped plug-in 8 , a protective shell 20 is provided on the outside of the cylinder 3 , and the rear side of the protective shell 20 is fixedly connected to the front side of the processing frame 1 .

[0035] As a technical optimization solution of the utility model, by setting a pull rod 19 and a protective shell 20, the pull rod 19 can be pulled to drive the L-shaped plug-in 8 to move forward and backward so that the L-shaped plug-in 8 can be separated from the slot 9, and the protective shell 20 can protect the cylinder 3, thereby preventing the cylinder 3 from having a hard collision with the outside world.

[0036] The working principle and use process of the utility model are as follows: when the positioning seat 5 needs to be adjusted left and right, the knob 112 is first turned to make the knob 112 away from the abutting cylinder 113, and then the L-shaped plug-in 8 is driven to move backward by moving the pull rod 19 to make the L-shaped plug-in 8 disengage from the slot 9 and the plug rod 103 disengage from the support plate 102, and then the fixing block 15 is driven to move left and right by pulling the handle 16. The left and right movement of the fixing block 15 can drive the connecting rod 7 to move left and right, and the left and right movement of the connecting rod 7 can drive the positioning seat 5 to move left and right. When the machine to be clamped is When the volume of the mechanical parts is large, the user can pull the handle 16 to drive part of the connecting rod 7 and the positioning column to pass through the connecting groove 13 and the through port 14 into the storage chamber 12, so that the user can adjust the distance between the remaining positioning seats 5. After the adjustment, the user can push the pull rod 19 to insert the L-shaped plug-in 8 into the slot 9 and the insertion rod 103 into the support plate 102 to position the connecting rod 7 and the positioning seat 5. Finally, the knob 112 is reversed to drive the tightening tube 113 to move forward to tighten the L-shaped plug-in 8 to complete the positioning of the L-shaped plug-in 8.

[0037] To sum up: this kind of clamp with a positioning structure, by setting a sliding groove 6, a connecting rod 7, an L-shaped plug-in 8 and a slot 9, can drive the positioning seat 5 to move left and right by moving the connecting rod 7, the sliding groove 6 can limit the connecting rod 7, the slot 9 can limit the L-shaped plug-in 8 up, down, left and right, the up, down, left and right limits of the L-shaped plug-in 8 can limit the connecting rod 7 and the positioning seat 5 up, down, left and right, thereby achieving the effect of positioning the positioning column, and solving the problem that the positioning seat is fixed on the processing frame, and the gap between the positioning seats is fixed and cannot be adjusted, which easily leads to friction between mechanical parts when the clamp clamps mechanical parts of different volumes, making processing inconvenient, and therefore the clamp has certain limitations when used.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture with a positioning structure, comprising a processing frame (1), a base plate (2), a cylinder (3), a push rod (4) and a positioning seat (5), characterized in that: The processing frame (1) is fixedly mounted on the top of the bottom plate (2); the back of the positioning seat (5) is in contact with the rear side of the inner wall of the processing frame (1); the cylinder (3) is fixedly mounted on the front of the processing frame (1); the piston end of the cylinder (3) is fixedly connected to an end of the push rod (4) away from the positioning seat (5); the other end of the push rod (4) passes through the processing frame (1) and extends to the inner side of the processing frame (1); a sliding groove (6) is provided on the back of the processing frame (1); the positioning seat (5) is A connecting rod (7) is fixedly connected to the back side, the surface of the connecting rod (7) is movably connected to the inner wall of the sliding groove (6), the surface of the connecting rod (7) is slidably connected to an L-shaped plug-in (8), a slot (9) is provided at the top of the back side of the processing frame (1), one end of the L-shaped plug-in (8) close to the cylinder (3) is inserted into the inside of the slot (9), the surface of the connecting rod (7) is fixedly connected to a limiting component (10), and the rear side of the surface of the connecting rod (7) is provided with a tightening component (11).

2. A fixture with a positioning structure according to claim 1, characterized in that: The limiting assembly (10) comprises a fixing ring (101), both sides of the surface of the fixing ring (101) are fixedly connected to support plates (102), both sides of the front bottom of the L-shaped plug-in unit (8) are fixedly connected to insertion rods (103), the other end of the insertion rod (103) passes through the support plate (102) and extends to the front side of the support plate (102), and the insertion rod (103) is movably connected to the support plate (102).

3. The fixture with a positioning structure according to claim 1, characterized in that: The clamping assembly (11) comprises a threaded groove (111), the surface of the threaded groove (111) is threadedly connected to a knob (112), the surface of the connecting rod (7) is movably connected to a clamping cylinder (113), one end of the clamping cylinder (113) close to the positioning seat (5) is tightly fitted with the rear side of the L-shaped plug-in (8), and the other end of the clamping cylinder (113) is tightly fitted with the front side of the knob (112).

4. The fixture with a positioning structure according to claim 1, characterized in that: The rear sides of both sides of the processing frame (1) are fixedly connected with a storage chamber (12), the back side of the storage chamber (12) is provided with a connecting groove (13), the connecting groove (13) is connected with the sliding groove (6), and the rear sides of both sides of the inner wall of the processing frame (1) are provided with a through hole (14), the through hole (14) is connected with the storage chamber (12).

5. The fixture with a positioning structure according to claim 4, characterized in that: One end of the connecting rod (7) away from the cylinder (3) is fixedly connected to a fixing block (15), and the outer side of the fixing block (15) is fixedly connected to a handle (16).

6. The fixture with a positioning structure according to claim 5, characterized in that: A fixing frame (17) is fixedly connected to the rear side of the storage chamber (12), a slide rail (18) is provided on the rear side of the fixing frame (17), and the inner wall of the slide rail (18) is slidably connected to the surface of the fixing block (15).

7. The fixture with a positioning structure according to claim 1, characterized in that: A pull rod (19) is fixedly connected to the top of the L-shaped plug-in unit (8), a protective shell (20) is provided on the outside of the cylinder (3), and the rear side of the protective shell (20) is fixedly connected to the front side of the processing frame (1).

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