Pressing plate type unilateral positioning clamp mechanism

Abstract

The utility model relates to the technical field of machining clamps, and discloses a pressing plate type unilateral positioning clamp mechanism which comprises a bottom plate, a movable bottom plate is arranged on the upper portion of the bottom plate, a pressing plate type clamp body is arranged on the upper surface of the movable bottom plate, and a first guide groove is formed in the upper surface of the bottom plate. A connecting block is slidably connected into the first guide groove, a second guide groove is formed in the upper surface of the connecting block, a sliding block is slidably connected into the second guide groove, and accurate adjustment of the position of the workpiece is finally achieved by rotating the driving rod, so that workers can accurately adjust the position of the workpiece conveniently; through cooperation of a first gear and a second gear, the precision adjustment difficulty of a worker is greatly reduced, so that the precision adjustment efficiency of the worker on the position of a workpiece is improved, operation is easy, practicability is high, the worker can conveniently position the position of the workpiece, and the problems that some existing pressing plate type positioning clamps are low in precision and poor in positioning precision are solved. And positioning is not convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing fixtures, in particular to a pressure plate type single-side positioning fixture mechanism. Background Art

[0002] The pressure plate type single-sided positioning fixture is a device used for positioning and clamping workpieces. It usually consists of a fixed fixture base and a movable pressure plate. When the workpiece is placed on the fixture base, the pressure plate can be moved and clamped on the workpiece, thereby achieving positioning and fixing of the workpiece.

[0003] However, the accuracy and parallelism of some existing pressure plate positioning fixtures are usually low, which is very inconvenient when some mechanical parts require precise positioning of holes. The efficiency of precise positioning of the mechanical parts after clamping is low. If there is a deviation in positioning, it will greatly affect the subsequent processing effect and efficiency of the mechanical parts. The operation is cumbersome and the practicality is low. In view of this, we propose a pressure plate single-sided positioning fixture mechanism to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides a pressure plate type single-side positioning fixture mechanism, which solves the problem that some existing pressure plate type positioning fixtures have low accuracy and are inconvenient for positioning.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure plate type single-sided positioning fixture mechanism, comprising a base plate, a movable base plate is arranged on the upper part of the base plate, a pressure plate type fixture body is arranged on the upper surface of the movable base plate, a first guide groove is provided on the upper surface of the base plate, a connecting block is slidably connected inside the first guide groove, a second guide groove is provided on the upper surface of the connecting block, a sliding block is slidably connected inside the second guide groove, a threaded rod is rotatably connected inside the second guide groove, the sliding block is threadedly sleeved on the outer surface of the threaded rod, a through groove is provided on the side surface of the base plate, the through groove is connected to the first guide groove, a coarse adjustment component is arranged inside the through groove, and the first The guide groove is internally rotatably connected with a driving rod, and the driving rod rotates and passes through the bottom plate. The connecting block is slidably sleeved on the outside of the driving rod. A cavity is opened inside the connecting block, and the threaded rod rotates and passes through the inside of the cavity. The outer surface of one end of the threaded rod located inside the cavity is sleeved with a first gear, and the right side of the first gear is meshed and connected with a second gear. The outer surfaces of the first gear and the second gear are both rotatably connected with a fixed ring, and the other side of the fixed ring is rotatably connected to the inner wall of the cavity. The upper surface of the sliding block is fixedly connected to the lower surface of the movable bottom plate, and a key slot is opened on the outer surface of the driving rod. A clamping block is fixedly connected to the inner wall of the second gear, and the clamping block is slidably connected to the inside of the key slot.

[0008] Preferably, the diameter of the second gear is half of that of the first gear, and the fixing collar surrounds the outside of the driving rod.

[0009] Preferably, the coarse adjustment assembly includes a driving plate, the driving plate is slidably connected to the inside of the through slot, the driving plate and the connecting block are fixedly connected, and a handle is fixedly connected to the front surface of the driving plate.

[0010] Preferably, a pressing rod is provided on the upper portion of the driving plate, a first groove is provided on the upper surface of the driving plate, a clamping plate is slidably connected inside the first groove, and teeth are provided on the surface of the clamping plate.

[0011] Preferably, a fixing plate is fixedly connected to the surface of the locking plate, the lower end of the pressing rod slides into the interior of the first groove and is fixedly connected to the fixing plate, and a spring is fixedly connected between the lower surface of the locking plate and the first groove.

[0012] Preferably, the top wall of the through groove is provided with engaging teeth, and the engaging teeth and the engaging plate are matched.

[0013] Preferably, a second groove is formed on the lower surface of the driving plate, and a pulley is disposed inside the second groove.

[0014] Preferably, the upper surfaces of the bottom plate and the movable bottom plate are both provided with scale marks, and the side surfaces of the movable bottom plate and the pressure plate type clamp body facing the scale marks are both fixedly connected with indication marks.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a pressure plate type single-side positioning fixture mechanism, which has the following beneficial effects:

[0017] 1. The pressure plate type single-sided positioning fixture mechanism can achieve fine adjustment of the workpiece position by rotating the driving rod, which is convenient for the staff to accurately adjust the position of the workpiece. The cooperation of the first gear and the second gear greatly reduces the difficulty of the staff in making precise adjustments, thereby improving the efficiency of the staff in fine adjustment of the workpiece position. The operation is simple and the practicability is high, which is convenient for the staff to locate the workpiece position, and solves the problem that some existing pressure plate type positioning fixtures have low accuracy and are inconvenient for positioning.

[0018] 2. The pressure plate type single-sided positioning fixture mechanism improves the efficiency of the staff in the initial adjustment of the workpiece position by setting the coarse adjustment component, thereby reducing the time spent on adjusting the workpiece position. It is simple to operate and convenient for subsequent fine adjustment of the workpiece position, and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a structural schematic diagram of a pressure plate type single-side positioning fixture mechanism of the utility model;

[0020] Figure 2 This is a schematic cross-sectional structural diagram of the connection block of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the driving rod of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the drive plate of the utility model;

[0023] Figure 5 This is a schematic cross-sectional view of the drive plate of the utility model;

[0024] Figure 6 for Figure 1 The enlarged view of point A in the middle;

[0025] Figure 7 It is a schematic diagram of the lower surface structure of the driving plate of the utility model.

[0026] In the figure: 1. base plate; 2. movable base plate; 3. pressure plate type clamp body; 4. first guide groove; 5. connecting block; 6. through groove; 7. second guide groove; 8. threaded rod; 9. sliding block; 10. driving rod; 11. cavity; 12. first gear; 13. second gear; 14. fixing ring; 15. keyway; 16. clamping block; 17. driving plate; 18. handle; 19. pressing rod; 20. first groove; 21. engaging plate; 22. fixing plate; 23. spring; 24. engaging teeth; 25. scale mark; 26. indication mark; 27. second groove; 28. pulley. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-Figure 7The utility model provides a technical solution: a pressure plate type single-side positioning fixture mechanism, including a bottom plate 1, a movable bottom plate 2 is arranged on the upper part of the bottom plate 1, and a pressure plate type fixture body 3 is arranged on the upper surface of the movable bottom plate 2. The bottom plate 1 and the movable bottom plate 2 have the same structure, so only the bottom plate 1 is described below, and a first guide groove 4 is provided on the upper surface of the bottom plate 1, and a connecting block 5 is slidably connected inside the first guide groove 4, and a second guide groove 7 is provided on the upper surface of the connecting block 5, and a sliding block 9 is slidably connected inside the second guide groove 7, and a threaded rod 8 is rotatably connected inside the second guide groove 7, and the sliding block 9 is threadedly sleeved on the outer surface of the threaded rod 8, and a through groove 6 is provided on the side of the bottom plate 1, and the through groove 6 is connected to the first guide groove 4, and a coarse adjustment component is arranged inside the through groove 6 The first guide groove 4 is internally rotatably connected with a driving rod 10, and the driving rod 10 rotates and passes through the bottom plate 1. The connecting block 5 is slidably sleeved on the outside of the driving rod 10. A cavity 11 is opened inside the connecting block 5. The threaded rod 8 rotates and passes into the inside of the cavity 11. The outer surface of one end of the threaded rod 8 located inside the cavity 11 is sleeved with a first gear 12. The right side of the first gear 12 is meshed and connected with a second gear 13. The diameter of the second gear 13 is half of the first gear 12. The outer surfaces of the first gear 12 and the second gear 13 are both rotatably connected with a fixing ring 14. The other side of the fixing ring 14 is rotatably connected to the inner wall of the cavity 11. The fixing ring 14 surrounds the outside of the driving rod 10. The upper surface of the sliding block 9 is fixedly connected to the lower surface of the movable bottom plate 2. A key slot 15 is provided on the outer surface of the driving rod 10, and a clamping block 16 is fixedly connected to the inner wall of the second gear 13, and the clamping block 16 is slidably connected to the inside of the key slot 15. First, the staff operates the pressure plate type clamp body 3 to clamp the workpiece, and then the staff operates the coarse adjustment component set on the base plate 1 to adjust the left and right position of the movable base plate 2, and then the front and rear position of the pressure plate type clamp body 3 is adjusted by operating the coarse adjustment component set on the movable base plate 2. At this time, the connecting block 5 will slide inside the first guide slot 4, and finally the coarse adjustment of the workpiece position is realized. Subsequently, the staff rotates the driving rod 10, and because the clamping block 16 is slidably connected to the inside of the key slot 15, the rotation of the driving rod 10 can drive the rotation of the second gear 13, and the rotation of the second gear The rotation of 13 drives the rotation of the first gear 12, and the rotation of the second gear 13 drives the rotation of the threaded rod 8, and the rotation of the threaded rod 8 drives the sliding block 9 to move inside the second guide groove 7, and the movement of the two sliding blocks 9 respectively drives the movement of the movable base plate 2 and the pressure plate type fixture body 3, so as to finally realize the fine adjustment of the workpiece position. The above structure is convenient for the staff to accurately adjust the position of the workpiece, and the cooperation of the first gear 12 and the second gear 13 greatly reduces the difficulty of the staff in making precise adjustments, thereby improving the staff's efficiency in fine-tuning the workpiece position. The operation is simple and the practicability is high, which is convenient for the staff to locate the position of the workpiece, and solves the problem that some existing pressure plate type positioning fixtures have low accuracy and are not easy to locate.

[0029] Furthermore, the coarse adjustment component includes a driving plate 17, which is slidably connected to the inside of the through groove 6, and the driving plate 17 is fixedly connected to the connecting block 5. The front side surface of the driving plate 17 is fixedly connected to a handle 18, and a pressing rod 19 is provided on the upper part of the driving plate 17. The upper surface of the driving plate 17 is provided with a first groove 20, and a clamping plate 21 is slidably connected to the inside of the first groove 20. The surface of the clamping plate 21 is provided with teeth, and a fixing plate 22 is fixedly connected to the surface of the clamping plate 21. The lower end of the pressing rod 19 slides through the inside of the first groove 20 and is fixedly connected to the fixing plate 22. A spring 23 is fixedly connected between the lower surface of the clamping plate 21 and the first groove 20, and a clamping tooth 24 is provided on the top wall of the through groove 6. The clamping tooth 24 and The locking plate 21 is adapted to the workpiece. When the staff needs to make a preliminary positioning of the workpiece, they first hold the handle 18 and then press the pressing rod 19 with their fingers. The sliding of the pressing rod 19 drives the fixing plate 22 and the locking plate 21 to slide synchronously inside the first groove 20, so that the fixing plate 22 will be retracted into the first groove 20. At this time, the teeth on the surface of the locking plate 21 will no longer be engaged with the locking teeth 24. The subsequent staff can slide the driving plate 17 to drive the connecting block 5 to move, and finally realize the preliminary adjustment of the workpiece position. The above structure improves the efficiency of the staff in making the preliminary adjustment of the workpiece position, thereby reducing the time spent on adjusting the workpiece position. The operation is simple, which is convenient for subsequent fine adjustment of the workpiece position and has high practicality.

[0030] Furthermore, a second groove 27 is formed on the lower surface of the driving plate 17, and a pulley 28 is arranged inside the second groove 27. The setting of the pulley 28 reduces the friction force generated between the driving plate 17 and the through groove 6 when the driving plate 17 moves, thereby improving the smoothness and stability of the initial adjustment of the workpiece position.

[0031] Furthermore, scale marks 25 are provided on the upper surfaces of the bottom plate 1 and the movable bottom plate 2 , and indication marks 26 are fixedly connected to the side surfaces of the movable bottom plate 2 and the pressure plate type clamp body 3 facing the scale marks 25 .

[0032] Working principle:

[0033] When the pressure plate type single-sided positioning clamp mechanism is in use, the staff operates the pressure plate type clamp body 3 to clamp the workpiece, and then operates the coarse adjustment component set on the base plate 1 to adjust the left and right positions of the movable base plate 2, and then operates the coarse adjustment component set on the movable base plate 2 to adjust the front and rear positions of the pressure plate type clamp body 3. At this time, the connecting block 5 will slide inside the first guide groove 4, and finally the coarse adjustment of the workpiece position is achieved. Subsequently, the staff rotates the driving rod 10. Since the clamping block 16 is slidably connected inside the key groove 15, the rotation of the driving rod 10 can drive the rotation of the second gear 13, and the rotation of the first gear 12 can drive the rotation of the second gear 13. The rotation of the threaded rod 8 can drive the rotation of the second gear 13, and the rotation of the threaded rod 8 can drive the sliding block 9 to move inside the second guide groove 7. The movement of the two sliding blocks 9 respectively drives the movement of the movable base plate 2 and the pressure plate type clamp body 3, and finally the fine adjustment of the workpiece position is achieved.

[0034] 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 pressure plate type single-side positioning fixture mechanism, comprising a bottom plate (1), characterized in that: A movable base plate (2) is arranged on the upper part of the base plate (1), a pressure plate type clamp body (3) is arranged on the upper surface of the movable base plate (2), a first guide groove (4) is arranged on the upper surface of the base plate (1), a connecting block (5) is slidably connected inside the first guide groove (4), a second guide groove (7) is arranged on the upper surface of the connecting block (5), a sliding block (9) is slidably connected inside the second guide groove (7), a threaded rod (8) is rotatably connected inside the second guide groove (7), the sliding block (9) is threadedly sleeved on the outer surface of the threaded rod (8), a through groove (6) is arranged on the side surface of the base plate (1), the through groove (6) and the first guide groove (4) are connected, a coarse adjustment component is arranged inside the through groove (6), a driving rod (10) is rotatably connected inside the first guide groove (4), the driving rod (10) rotatably passes through the base plate (1), and the through groove (6) is connected to the first guide groove (4). The connecting block (5) is slidably sleeved on the outside of the driving rod (10), a cavity (11) is provided inside the connecting block (5), the threaded rod (8) rotates and penetrates into the cavity (11), a first gear (12) is sleeved on the outer surface of one end of the threaded rod (8) located inside the cavity (11), a second gear (13) is meshedly connected to the right side of the first gear (12), the outer surfaces of the first gear (12) and the second gear (13) are both rotatably connected to a fixing ring (14), the other side of the fixing ring (14) is rotatably connected to the inner wall of the cavity (11), the upper surface of the sliding block (9) is fixedly connected to the lower surface of the movable base plate (2), a key groove (15) is provided on the outer surface of the driving rod (10), a clamping block (16) is fixedly connected to the inner wall of the second gear (13), and the clamping block (16) is slidably connected to the inside of the key groove (15).

2. A pressure plate type single-side positioning fixture mechanism according to claim 1, characterized in that: The diameter of the second gear (13) is half of that of the first gear (12), and the fixing ring (14) surrounds the outside of the driving rod (10).

3. The pressure plate type single-side positioning fixture mechanism according to claim 1, characterized in that: The coarse adjustment assembly comprises a driving plate (17), the driving plate (17) is slidably connected inside the through slot (6), the driving plate (17) and the connecting block (5) are fixedly connected, and a handle (18) is fixedly connected to the front side surface of the driving plate (17).

4. The pressure plate type single-side positioning fixture mechanism according to claim 3, characterized in that: A pressing rod (19) is arranged on the upper part of the driving plate (17), a first groove (20) is provided on the upper surface of the driving plate (17), a clamping plate (21) is slidably connected inside the first groove (20), and teeth are arranged on the surface of the clamping plate (21).

5. The pressure plate type single-side positioning fixture mechanism according to claim 4, characterized in that: The surface of the locking plate (21) is fixedly connected to a fixing plate (22); the lower end of the pressing rod (19) slides into the interior of the first groove (20) and is fixedly connected to the fixing plate (22); a spring (23) is fixedly connected between the lower surface of the locking plate (21) and the first groove (20).

6. The pressure plate type single-side positioning fixture mechanism according to claim 5, characterized in that: The top wall of the through groove (6) is provided with engaging teeth (24), and the engaging teeth (24) and the engaging plate (21) are matched.

7. The pressure plate type single-side positioning fixture mechanism according to claim 4, characterized in that: A second groove (27) is provided on the lower surface of the driving plate (17), and a pulley (28) is arranged inside the second groove (27).

8. The pressure plate type single-side positioning fixture mechanism according to claim 1, characterized in that: The upper surfaces of the base plate (1) and the movable base plate (2) are both provided with scale marks (25), and the movable base plate (2) and the side of the pressure plate type clamp body (3) facing the scale mark (25) are both fixedly connected with an indication mark (26).

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