Precise numerical control lathe positioning clamp

Abstract

The utility model discloses a precise numerical control lathe positioning fixture, which relates to the technical field of tool fixtures and comprises a support plate, and a sliding component and a clamping component are arranged on the surface of the support plate. The sliding assembly comprises two sliding grooves, the two sliding grooves are formed in the surface of the supporting plate, two sliding blocks are slidably connected into each sliding groove, a mounting plate is arranged at the top ends of the four sliding blocks, a ruler is arranged on one side of the supporting plate, and a pointer is arranged on one side of the mounting plate. The clamping assembly comprises a supporting rail, and the supporting rail is arranged in the middle of the mounting plate. The automatic clamping device has the advantages that accurate position adjustment of the two positioning seats and a clamped object can be achieved through cooperation of the sliding block, the pointer, the ruler and the mounting plate, automatic clamping of the target object can be achieved through cooperation of the clamping assembly reset spring, the supporting rail and the connecting arm, and using is more convenient.

Description

Technical Field

[0001] The utility model relates to a positioning fixture, in particular to a positioning fixture for a precision numerically controlled lathe, and belongs to the technical field of tooling fixtures. Background Art

[0002] In precision CNC lathe processing, especially in the special processing of customized non-standard workpieces, due to the effect of the tool and the gravity of the workpiece itself, the workpiece may be eccentric, resulting in unqualified processing quality, or even the entire workpiece being scrapped, resulting in processing cost losses. Various fixtures must be used to fix the workpiece to the lathe. The existing tooling fixtures are relatively complex and the processing effect is not good, so a precision CNC lathe positioning fixture is needed;

[0003] Among them, the "A Precision CNC Lathe Positioning Fixture" disclosed in the application number "CN202021480255.X" is also an increasingly mature technology, comprising a sample table, a base is arranged under the sample table, the sample table and the base are fixedly connected by a bracket, a plurality of clamps are arranged on the sample table, the clamps are arranged in a limiting groove, a threaded rod passes through the bottom of the clamp, the threaded rod is arranged directly below the limiting groove, the threaded through hole is threadedly matched with the threaded rod, fixed blocks are arranged at both ends of the threaded rod, the threaded rod is rotatably connected to the outer fixed block, the other end of the threaded rod passes through the inner fixed block and is fixedly connected to the middle part of the first bevel gear, the first bevel gear is arranged above the second bevel gear and the two cooperate, the utility model adopts a plurality of clamps to move toward the center of the sample table at the same time under the drive of the threaded rod, to clamp the workpiece, the positioning is accurate, the plurality of clamps are clamped at the same time, the clamping effect is good, the plurality of clamps are driven by the same motor, energy is saved, and costs are reduced;

[0004] However, the above method still has the following defects in actual use: the positioning fixture is not provided with a movable adjustment mechanism, and the positioning fixture cannot be accurately adjusted left and right after installation and fixation. At the same time, the positioning fixture cannot be automatically clamped, which is inconvenient to use. Utility Model Content

[0005] The purpose of the utility model is to provide a positioning fixture for a precision CNC lathe to solve the problems in the above-mentioned background technology that the positioning fixture is not provided with a movable adjustment mechanism, the positioning fixture cannot be accurately adjusted left and right after installation and fixation, and the positioning fixture cannot be automatically clamped.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a precision CNC lathe positioning fixture, comprising a support plate, a surface of the support plate is provided with a sliding assembly and a clamping assembly; the sliding assembly comprises two slide grooves, two of the slide grooves are opened on the surface of the support plate, and two sliders are slidably connected inside each of the slide grooves, and a mounting plate is provided at the top of the four sliders, a ruler is provided on one side of the support plate, and a pointer is provided on one side of the mounting plate; the clamping assembly comprises a support rail, the support rail is provided in the middle of the mounting plate, and two slide seats are slidably connected on the surface of the support rail, and a connecting block is provided on the corresponding side of the two slide seats, and a reset spring is provided between the two connecting blocks.

[0007] As a preferred technical solution of the utility model, a connecting plate is provided at the top of the two sliding seats, a positioning seat is provided at the top of the two connecting plates, and a rubber pad is provided on the inner wall of each positioning seat.

[0008] As a preferred technical solution of the utility model, two connecting arms are slidably fitted between the two connecting plates, and the middle parts of the two connecting arms are rotatably connected through a connecting shaft.

[0009] As a preferred technical solution of the utility model, a screw rod is provided on one side of the surface of each slider, and a locking nut is threadedly connected to the surface of each screw rod.

[0010] As a preferred technical solution of the utility model, a positioning groove matching the connecting arm is provided on the surface of each connecting plate.

[0011] As a preferred technical solution of the utility model, fixing seats are provided on both sides of the bottom end of the support plate.

[0012] As a preferred technical solution of the utility model, a fixing hole is provided on the surface of each fixing seat.

[0013] Compared with the related art, the precision CNC lathe positioning fixture provided by the utility model has the following beneficial effects:

[0014] Through the cooperation of the slider, pointer, ruler and mounting plate, the two positioning seats and the clamped object can be accurately adjusted. Through the cooperation of the clamping assembly reset spring, support rail and connecting arm, the target object can be automatically clamped, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0017] Figure 3 It is a side structural schematic diagram of the utility model;

[0018] Figure 4 It is an enlarged structural schematic diagram of the clamping assembly of the utility model.

[0019] In the figure: 1. support plate; 111. fixed seat; 112. fixing hole; 2. sliding assembly; 21. slide groove; 22. slider; 23. screw rod; 231. locking nut; 24. mounting plate; 25. ruler; 26. pointer; 3. clamping assembly; 31. support rail; 32. slide seat; 321. connecting plate; 33. connecting block; 34. reset spring; 35. positioning seat; 36. rubber pad; 37. connecting arm; 371. positioning groove; 38. connecting shaft. DETAILED DESCRIPTION

[0020] 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.

[0021] Embodiment 1:

[0022] See also Figure 1-4 The utility model provides a positioning fixture for a precision CNC lathe, comprising a support plate 1, a sliding component 2 and a clamping component 3 are arranged on the surface of the support plate 1;

[0023] The sliding assembly 2 includes two slide grooves 21, which are provided on the surface of the support plate 1. Two sliders 22 are slidably connected inside each slide groove 21. A mounting plate 24 is fixedly provided at the top of the four sliders 22. A scale 25 is fixedly provided on one side of the support plate 1, and a pointer 26 is fixedly provided on one side of the mounting plate 24.

[0024] A screw rod 23 is fixedly disposed on one side of the surface of each slider 22, and a locking nut 231 is threadedly connected to the surface of each screw rod 23 for locking and fixing;

[0025] Both sides of the bottom end of the support plate 1 are fixedly provided with fixing seats 111;

[0026] Each fixing seat 111 has a fixing hole 112 on its surface for installation and fixing;

[0027] Specifically, first, two slide grooves 21 are opened on the surface of the support plate 1. The slider 22 in the slide groove 21 can make the mounting plate 24 move left and right, thereby realizing the left and right position adjustment of the two positioning seats 35. The movement distance is conveniently observed through the cooperation of the pointer 26 and the ruler 25. After adjusting to the appropriate position, the locking nut 231 corresponding to the surface of each screw rod 23 is unscrewed, so that the bottom of the locking nut 231 applies pressure to the surface of the support plate 1, thereby limiting the movement of the mounting plate 24.

[0028] Embodiment 2:

[0029] The clamping assembly 3 includes a support rail 31, which is fixedly arranged in the middle of the mounting plate 24. Two slide seats 32 are slidably connected to the surface of the support rail 31. A connecting block 33 is fixedly arranged on one side corresponding to the two slide seats 32. A return spring 34 is arranged between the two connecting blocks 33.

[0030] The tops of the two sliding seats 32 are fixedly provided with connecting plates 321, the tops of the two connecting plates 321 are fixedly provided with positioning seats 35, and the inner wall of each positioning seat 35 is fixedly provided with a rubber pad 36, which is made of soft rubber material and is used to protect the surface of the contact object and has a certain buffering effect;

[0031] Two connecting arms 37 are slidably fitted between the two connecting plates 321, and the middle parts of the two connecting arms 37 are rotatably connected via a connecting shaft 38;

[0032] A positioning groove 371 matching the connecting arm 37 is formed on the surface of each connecting plate 321 to facilitate the movement of the connecting arm 37;

[0033] Specifically, first, the two connecting plates 321 are slidably fitted through two crossed connecting arms 37. Since the middle parts of the two connecting arms 37 are rotatably connected through the connecting shaft 38, it is possible to pull one of the positioning seats 35 while the other positioning seat 35 moves equidistantly in the opposite direction, and the concentricity is better. A rubber pad 36 is provided on the inner wall of each positioning seat 35. The rubber pad 36 is made of soft rubber material and is used to protect the surface of the contact object. It has a certain buffering effect and can reduce damage to the target object.

[0034] When in use, first install the precision CNC lathe positioning fixture to a suitable position through the fixing hole 112 on the surface of the fixing seat 111. In order to facilitate the precise left-right adjustment of the positioning fixture, two slide grooves 21 are provided on the surface of the support plate 1. The slider 22 in the slide groove 21 can make the mounting plate 24 move left-right, thereby realizing the left-right position adjustment of the two positioning seats 35. A pointer 26 is provided in the middle of the mounting plate 24. The pointer 26 corresponds to the scale 25 on one side of the support plate 1. The moving distance of the mounting plate 24 can be accurately controlled through the scale 25 information corresponding to the pointer 26. After adjusting to a suitable position, the movement of the mounting plate 24 is limited by tightening the locking nut 231.

[0035] When performing clamping operations, the staff can pull the positioning seat 35 on one side, and the positioning seat 35 is connected to the slide seat 32 through the connecting plate 321. The slide seat 32 can slide on the surface of the support rail 31, and the two connecting plates 321 are slidably matched through two crossed connecting arms 37. Since the middle parts of the two connecting arms 37 are rotatably connected through the connecting shaft 38, it is possible to pull one of the positioning seats 35 while the other positioning seat 35 moves in the opposite direction equidistantly, with better concentricity. The object to be processed is placed between the two positioning seats 35, and a reset spring 34 is provided between the two slide seats 32 through the connecting block 33. After placement, the positioning seat 35 is released, and the two positioning seats 35 can clamp the target object under the contraction action of the reset spring 34, which is more convenient to use.

[0036] Although the 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 positioning fixture for a precision CNC lathe, comprising a support plate (1), characterized in that: The surface of the support plate (1) is provided with a sliding component (2) and a clamping component (3); The sliding assembly (2) comprises two sliding grooves (21), the two sliding grooves (21) are formed on the surface of the support plate (1), two sliding blocks (22) are slidably connected inside each of the sliding grooves (21), a mounting plate (24) is provided at the top of the four sliding blocks (22), a scale (25) is provided on one side of the support plate (1), and a pointer (26) is provided on one side of the mounting plate (24); The clamping assembly (3) comprises a support rail (31), the support rail (31) being arranged in the middle of the mounting plate (24), the surface of the support rail (31) being slidably connected to two slide seats (32), a connecting block (33) being arranged on one side corresponding to the two slide seats (32), and a return spring (34) being arranged between the two connecting blocks (33).

2. The positioning fixture for a precision CNC lathe according to claim 1, characterized in that: A connecting plate (321) is provided at the top of each of the two sliding seats (32), a positioning seat (35) is provided at the top of each of the two connecting plates (321), and a rubber pad (36) is provided on the inner wall of each of the positioning seats (35).

3. A precision CNC lathe positioning fixture according to claim 2, characterized in that: Two connecting arms (37) are slidably fitted between the two connecting plates (321), and the middle parts of the two connecting arms (37) are rotatably connected via a connecting shaft (38).

4. The positioning fixture for a precision CNC lathe according to claim 1, characterized in that: A screw rod (23) is provided on one side of the surface of each slider (22), and a locking nut (231) is threadedly connected to the surface of each screw rod (23).

5. The positioning fixture for a precision CNC lathe according to claim 2, characterized in that: A positioning groove (371) matching the connecting arm (37) is formed on the surface of each connecting plate (321).

6. The positioning fixture for a precision CNC lathe according to claim 1, characterized in that: Fixed seats (111) are provided on both sides of the bottom end of the support plate (1).

7. A precision CNC lathe positioning fixture according to claim 6, characterized in that: A fixing hole (112) is provided on the surface of each fixing seat (111).

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