Special clamp for bench drill

Abstract

The utility model discloses a special fixture for a bench drill, which comprises a bench drill base, a limiting rod, a driving rod, a moving plate and a balance clamping plate, the limiting rod and the driving rod which are vertically arranged are respectively arranged on the bench drill base, the driving rod can rotate around the axial direction, and the balance clamping plate comprises an upper horizontal plate, a vertical plate and a lower horizontal plate. The two sides of the upper horizontal plate are perpendicularly connected with vertical plates correspondingly, the sides, away from the upper horizontal plate, of the vertical plates are connected with lower horizontal plates correspondingly, the balance clamping plates are slidably connected with the limiting rods and the driving rods correspondingly, first mounting holes and second mounting holes are formed in the moving plates, and the moving plates are slidably connected with the limiting rods and the vertical plates. The movable plate is arranged between the upper horizontal plate and the lower horizontal plate and is in threaded connection with the driving rod. The lower horizontal plates on the two sides of the balance clamping plate are squeezed downwards at the same time through the movable plate, so that the clamping acting force on the fixed plate is better and evenly distributed, and the problem that the clamping plate is prone to deformation or breakage due to uneven stress is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a special clamp for a bench drill. Background Art

[0002] During the cutting stage of producing steel structures such as guardrails and steel ladders, a large number of fixed plates of the same size need to be processed. Currently, a single fixed plate is mostly processed using a bench drill. The work is tedious and repetitive, the progress is slow and the processing is prone to deviations. In order to improve the processing quality and construction progress, additional fixtures will be used to process multiple fixed plates at the same time.

[0003] However, when common clamping devices are in use, the clamping plates cannot ensure sufficient contact with the fixing plates due to the diverse processing requirements of the fixing plates and the operating space of the bench drill. When the contact area between the clamping plates and the fixing plates is small, the clamping plates are in a state where one end is clamped and fixed by the multi-layer fixing plates and the other end is clamped by a driving mechanism. At this time, the ends of the clamping plates and the fixing plates are very likely to be deformed or broken due to uneven force, and the reliability of clamping and the safety of processing cannot be guaranteed.

[0004] Therefore, there is an urgent need for a special clamp for a bench drill to solve the problem that when the contact area between the clamp and the fixed plate is small, the clamp is easily deformed or broken due to uneven force. Utility Model Content

[0005] The utility model aims at the deficiencies in the prior art and provides a special clamp for a bench drill to solve the problem that when the contact surface between the clamp and the fixing plate is small, the clamp is easily deformed or broken due to uneven force.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The eccentric shaft is connected with the upper and lower horizontal plates, and the eccentric shaft is connected with the lower and upper horizontal plates by the eccentric shaft, and the eccentric shaft is connected with the lower and upper horizontal plates by the eccentric shaft.

[0008] To optimize the above technical solutions, the specific measures taken also include:

[0009] Furthermore, the upper horizontal plate of the balancing clamp is slidably connected to the limit rod, the lower horizontal plate on one side of the balancing clamp is slidably connected to the driving rod, and the lower horizontal plate on the other side of the balancing clamp is used to clamp with the bench drill base; the plate body of the movable plate located between the first mounting hole and the second mounting hole is slidably connected to the limit rod, and the side of the movable plate close to the driving rod is threadedly connected to the driving rod.

[0010] Furthermore, a nut is fixedly mounted on one side of the movable plate close to the driving rod, and the movable plate is threadedly connected to the driving rod via the nut.

[0011] Furthermore, a circle of driving turntable is installed at the bottom of the driving rod, and the outer side of the driving turntable is rotatably connected to the bearing base and fixedly connected to the bench drill base through the bearing base.

[0012] Furthermore, the upper end surface of the bench drill base is provided with a mounting groove with a "convex"-shaped side cross-section, and the upper end of the mounting groove is open, and a limiting base is provided at the bottom of the limiting rod. The limiting rod is fixedly connected to the bench drill base by installing the limiting base in the "convex"-shaped mounting groove.

[0013] Furthermore, the rod body of the limit rod close to the bench drill base is provided with an external thread, and the limit rod is threadedly connected to a mounting nut through the external thread, and the mounting nut can be rotated to abut against the upper end surface of the bench drill base.

[0014] Furthermore, a mounting gasket is provided between the mounting nut and the upper end surface of the bench drill base.

[0015] Furthermore, a first spring and a second spring are respectively connected between the two lower horizontal plates of the moving plate and the balancing clamping plate, and the first spring and the second spring are used to pull the moving plate and the balancing clamping plate closer to each other.

[0016] Furthermore, a second spring close to the driving rod is sleeved on the rod body of the driving rod.

[0017] Furthermore, a groove for accommodating the first spring and the second spring is correspondingly provided on the lower end surface of the movable plate, and the first spring and the second spring correspond to the top of the groove and the upper end surface of the lower horizontal plate respectively.

[0018] The beneficial effects of the utility model are:

[0019] The utility model adopts the structural arrangement of the movable plate and the balancing clamping plate. When in use, the lower end surface of the lower horizontal plate on the lowermost side first contacts the fixed plate to be clamped and processed. The balancing clamping plate as a whole maintains horizontal limit under the action of the limit rod, the driving rod and the fixed plate. The movable plate moves close to the balancing clamping plate under the threaded drive of the driving rod until it abuts against the lower horizontal plates on both sides of the balancing clamping plate. At this time, the lower horizontal plates on both sides of the balancing clamping plate are squeezed downward by the movable plate at the same time, so as to better distribute the clamping force on the fixed plate, thereby avoiding the problem of deformation or breakage of the clamping plate due to uneven force. At the same time, the overlapping arrangement of the movable plate and the balancing clamping plate also increases the structural strength of the plate body used for clamping, thereby further ensuring the stability of the clamping and the reliability of the structure.

[0020] The utility model discloses a device that can be flexibly assembled and disassembled, is durable, is easy to construct, improves labor efficiency, reduces personnel risks, and can realize batch processing; it has a rigorous structure, reasonable force, is easy to use, and has a low production cost, and can meet the needs of carrying out this work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a special fixture for bench drilling proposed by the utility model;

[0022] Figure 2 A side cross-sectional view of a special fixture for a bench drill proposed by the utility model;

[0023] Figure 3 This is a structural schematic diagram of a balancing clamp of a bench drill special clamp proposed by the utility model;

[0024] Figure 4 This is a structural schematic diagram of a movable plate of a bench drill special fixture proposed by the utility model;

[0025] Figure 5 This is a schematic diagram of the connection between the balancing clamp and the moving plate of a bench drill special clamp proposed by the utility model;

[0026] Figure 6 This is a structural schematic diagram of a driving rod of a bench drill special clamp proposed by the utility model;

[0027] Figure 7 This is a structural schematic diagram of a limit rod of a special clamp for a bench drill proposed by the utility model;

[0028] Figure 8 The utility model is a schematic diagram of the connection between a driving rod and a limiting rod of a special clamp for a bench drill.

[0029] Figure numerals: 1. Limit rod, 2. Drive rod, 3. Moveable plate, 4. Balance clamp, 5. Drive turntable, 6. Bearing base, 7. Mounting nut, 8. Mounting gasket, 9. First spring, 10. Second spring, 11. Limit base, 12. First mounting hole, 13. First connecting hole, 14. Second mounting hole, 15. Second connecting hole, 16. Drill press base. DETAILED DESCRIPTION

[0030] The utility model is described in detail below with reference to the accompanying drawings.

[0031] As attached Figure 1 and attached Figure 8 As shown, a special fixture for bench drilling in the embodiment of the utility model comprises a bench drilling base 16, a limiting rod 1, a driving rod 2, a movable plate 3 and a balancing clamp 4. The bench drilling base 16 is respectively provided with a limiting rod 1 and a driving rod 2 which are arranged vertically. The driving rod 2 can rotate around the axis. The balancing clamp 4 comprises an upper horizontal plate, two vertical plates and two lower horizontal plates. A vertical plate is vertically connected to each of the two sides of the upper horizontal plate. A lower horizontal plate is connected to each of the two sides of the vertical plate which is away from the upper horizontal plate. The balancing clamp 4 and the limiting rod 1 and the driving rod 2 are slidably connected, a first mounting hole 12 and a second mounting hole 14 are opened on the moving plate 3, the moving plate 3 is slidably connected to the limiting rod 1, and is slidably connected to the two vertical plates through the first mounting hole 12 and the second mounting hole 14, and is arranged between the upper horizontal plate and the lower horizontal plate, the moving plate 3 is threadedly connected to the driving rod 2, the driving rod 2 is used to drive the moving plate 3 to move up and down along the limiting rod 1, and the moving plate 3 and the balancing clamping plate 4 are away from the limiting rod 1 and the driving rod 2. The side is used for clamping.

[0032] The utility model adopts the structural setting of the movable plate 3 and the balancing clamping plate 4. When in use, the lower end surface of the lower horizontal plate on the lowermost side first contacts the fixed plate to be clamped and processed. The balancing clamping plate 4 as a whole maintains horizontal limit under the action of the limit rod 1, the driving rod 2 and the fixed plate. The movable plate 3 moves close to the balancing clamping plate 4 under the threaded drive of the driving rod 2 until it abuts against the lower horizontal plates on both sides of the balancing clamping plate 4. At this time, the movable plate 3 simultaneously squeezes the lower horizontal plates on both sides of the balancing clamping plate 4 downward to better distribute the clamping force on the fixed plate, thereby avoiding the problem of deformation or breakage of the clamping plate due to uneven force. At the same time, the overlapping setting of the movable plate 3 and the balancing clamping plate 4 also increases the structural strength of the plate body used for clamping, further ensuring the stability of the clamping and the reliability of the structure.

[0033] As attached Figure 3 , Attachment Figure 4 and attached Figure 5As shown, in another specific embodiment, the upper horizontal plate of the balancing clamp 4 is slidably connected to the limit rod 1, the lower horizontal plate on one side of the balancing clamp 4 is slidably connected to the driving rod 2, and the lower horizontal plate on the other side of the balancing clamp 4 is used to clamp with the bench drill base 16; the plate body of the movable plate 3 located between the first mounting hole 12 and the second mounting hole 14 is slidably connected to the limit rod 1, and the side of the movable plate 3 close to the driving rod 2 is threadedly connected to the driving rod 2. In this embodiment, the plate body of the movable plate 3 located between the first mounting hole 12 and the second mounting hole 14 is provided with a first connecting hole 13 for slidably connecting to the limit rod 1, and the side of the movable plate 3 close to the driving rod 2 is provided with a second connecting hole 15 for threadingly connecting to the driving rod 2, and the second connecting hole 15 is provided with a matching internal thread. In this way, the stability of the structural connection and the reliability during use can be guaranteed.

[0034] In another specific embodiment, a nut is fixedly mounted on one side of the moving plate 3 close to the driving rod 2, and the moving plate 3 is threadedly connected to the driving rod 2 through the nut. Therefore, in this embodiment, the second connecting hole 15 of the moving plate 3 can be directly slidably connected to the driving rod 2, and the threaded connection with the driving rod 2 is realized through the external nut, so as to facilitate the manufacture of the device and the replacement of parts.

[0035] As attached Figure 6 As shown, in another specific embodiment, a circle of driving turntable 5 is installed at the bottom of the driving rod 2, and the outer side of the driving turntable 5 is rotatably connected to the bearing base 6, and is fixedly connected to the bench drill base 16 through the bearing base 6. In this way, when in use, the driving turntable 5 can be manually rotated by the staff to drive the driving rod 2 to rotate, thereby controlling the moving plate 3 threadedly connected thereto to move up and down.

[0036] As attached Figure 2 and attached Figure 7 As shown, in another specific embodiment, the upper end surface of the bench drill base 16 is provided with a mounting groove with a "convex"-shaped side section, and the upper end of the mounting groove is open, and the bottom of the limit rod 1 is provided with a limit base 11, and the limit rod 1 is fixedly connected to the bench drill base 16 by installing the limit base 11 in the "convex"-shaped mounting groove. In this way, it is convenient to install and remove the limit rod 1, and the "convex"-shaped mounting groove can also use the existing mounting groove on the bench drill base 16.

[0037] The rod body of the limit rod 1 near the bench drill base 16 is provided with an external thread, and the limit rod 1 is threadedly connected to a mounting nut 7 through the external thread, and the mounting nut 7 can be rotated to abut against the upper end surface of the bench drill base 16. In this way, the stability of the connection between the limit rod 1 and the bench drill base 16 is increased by the mounting nut 7. In this way, a mounting gasket 8 is also provided between the mounting nut 7 and the upper end surface of the bench drill base 16. In this way, the stability of the structural connection is further increased by the mounting gasket 8.

[0038] In another specific embodiment, a first spring 9 and a second spring 10 are respectively connected between the two lower horizontal plates of the moving plate 3 and the balancing clamp plate 4, and the first spring 9 and the second spring 10 are used to pull the moving plate 3 and the balancing clamp plate 4 closer to each other. In this way, when in use, the first spring 9 and the second spring 10 can provide a force to pull the moving plate 3 and the balancing clamp plate 4 closer to each other, so that the moving plate 3 can drive the balancing clamp plate 4 to move up and down without being squeezed by the upper horizontal plate of the balancing clamp plate 4, thereby increasing the moving range of the balancing clamp plate 4 in a limited space and increasing the practicality of the device.

[0039] The second spring 10 close to the driving rod 2 is sleeved on the rod body of the driving rod 2. In this way, the structural setting of the device can be simplified and the reliability of the structural connection can be guaranteed.

[0040] The lower end surface of the movable plate 3 is provided with a groove for accommodating the first spring 9 and the second spring 10, and the first spring 9 and the second spring 10 correspond to the top of the groove and the upper end surface of the corresponding lower horizontal plate, respectively. In this way, when the lower horizontal plate moved to the balancing clamping plate 4 abuts against the movable plate 3, the first spring 9 and the second spring 10 can be respectively received in the corresponding grooves, without affecting the clamping of the movable plate 3 and the balancing clamping plate 4 on the fixed plate.

[0041] The utility model discloses a device that can be flexibly assembled and disassembled, is durable, is easy to construct, improves labor efficiency, reduces personnel risks, and can realize batch processing; it has a rigorous structure, reasonable force, is easy to use, and has a low production cost, and can meet the needs of carrying out this work.

[0042] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "back", etc. used in the utility model are only for the convenience of description and are not used to limit the scope of implementation of the utility model. Changes or adjustments in their relative relationships should be regarded as the scope of implementation of the utility model without substantially changing the technical content.

[0043] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should be regarded as the protection scope of the utility model.

Claims

1. A special fixture for bench drilling, characterized by: The bench drill comprises a base (16), a limit rod (1), a driving rod (2), a movable plate (3) and a balancing clamp (4). The base (16) is respectively provided with a limit rod (1) and a driving rod (2) which are arranged vertically. The driving rod (2) can rotate around an axis. The balancing clamp (4) comprises an upper horizontal plate, two vertical plates and two lower horizontal plates. Two sides of the upper horizontal plate are respectively vertically connected to a vertical plate. The sides of the vertical plates away from the upper horizontal plate are each connected to a lower horizontal plate. The balancing clamp (4) is slidably connected to the limit rod (1) and the driving rod (2). A first mounting hole (12) and a second mounting hole (14) are provided on the movable plate (3). The movable plate (3) is slidably connected to the limit rod (1) and is slidably connected to the two vertical plates through the first mounting hole (12) and the second mounting hole (14). The movable plate (3) is arranged between the upper horizontal plate and the lower horizontal plate. The movable plate (3) is threadedly connected to the driving rod (2).

2. A special fixture for bench drilling according to claim 1, characterized in that: The upper horizontal plate of the balancing clamp (4) is slidably connected to the limit rod (1), the lower horizontal plate on one side of the balancing clamp (4) is slidably connected to the drive rod (2), and the lower horizontal plate on the other side of the balancing clamp (4) is used to clamp with the bench drill base (16); the plate body of the movable plate (3) located between the first mounting hole (12) and the second mounting hole (14) is slidably connected to the limit rod (1), and the side of the movable plate (3) close to the drive rod (2) is threadedly connected to the drive rod (2).

3. The special fixture for bench drilling according to claim 2, characterized in that: A nut is fixedly mounted on one side of the movable plate (3) close to the driving rod (2), and the movable plate (3) is threadedly connected to the driving rod (2) via the nut.

4. The special fixture for bench drilling according to claim 1, characterized in that: A driving turntable (5) is installed at the bottom of the driving rod (2); the outer side of the driving turntable (5) is rotatably connected to a bearing base (6) and is fixedly connected to a bench drill base (16) via the bearing base (6).

5. The special fixture for bench drilling according to claim 1, characterized in that: The upper end surface of the bench drill base (16) is provided with a mounting groove with a "convex"-shaped side cross-section, and the upper end of the mounting groove is open. The bottom of the limit rod (1) is provided with a limit base (11), and the limit rod (1) is fixedly connected to the bench drill base (16) by installing the limit base (11) in the "convex"-shaped mounting groove.

6. The special fixture for bench drilling according to claim 5, characterized in that: The limiting rod (1) is provided with an external thread on its rod body close to the bench drill base (16), and the limiting rod (1) is threadedly connected to a mounting nut (7) via the external thread. The mounting nut (7) can be rotated to abut against the upper end surface of the bench drill base (16).

7. The special fixture for bench drilling according to claim 6, characterized in that: A mounting gasket (8) is also provided between the mounting nut (7) and the upper end surface of the bench drill base (16).

8. The special fixture for bench drilling according to claim 1, characterized in that: A first spring (9) and a second spring (10) are respectively connected between the two lower horizontal plates of the movable plate (3) and the balancing clamping plate (4); the first spring (9) and the second spring (10) are used to pull the movable plate (3) and the balancing clamping plate (4) closer to each other.

9. The special fixture for bench drilling according to claim 8, characterized in that: A second spring (10) close to the driving rod (2) is sleeved on the rod body of the driving rod (2).

10. The special fixture for bench drilling according to claim 8, characterized in that: The lower end surface of the movable plate (3) is provided with a groove for accommodating the first spring (9) and the second spring (10), and the first spring (9) and the second spring (10) correspond to the top of the groove and the upper end surface of the lower horizontal plate respectively.

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