Tool clamp

Abstract

The utility model discloses a tool clamp which comprises a machine frame, a clamping device and a clamping device. A workbench is arranged on the machine frame, two oppositely-arranged clamping mechanisms are arranged on the workbench, and the clamping mechanisms are used for clamping a workpiece. The clamping mechanism comprises a connecting beam arranged on the workbench; the mounting seat is arranged in the middle of the connecting beam; the overturning plate is rotationally connected with the mounting base through a rotating shaft, and a base plate is arranged on the overturning plate; a gear is arranged in the middle of the rotating shaft, a rack meshed with the gear is arranged below the gear, and the rack can move in the rotating direction of gear teeth of the gear; the two-way screw drives the sliding blocks on the left side and the right side of the workbench to move oppositely till the sliding blocks move to the position of a workpiece, the first rocking handle rotates to drive the lead screw and the rack to move, and then the overturning plate is driven to overturn downwards till the base plate presses the workpiece. And base plates with different thicknesses can be replaced according to workpieces with different thicknesses, and the effect of wide application range is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of workholding fixtures, and specifically relates to a workholding fixture. Background Art

[0002] During the machining or installation process, it is often necessary to fix workpieces. In the prior art, specific workpieces are often fixed by specific workholding fixtures, and they have complex structures and cumbersome operations, and satisfactory effects can never be achieved. To solve the above problems, a workholding fixture is now proposed. Summary of the Invention

[0003] The purpose of the utility model is to solve the above problems and provide a workholding fixture.

[0004] The specific scheme of the utility model is as follows: A workholding fixture, comprising: a frame; a workbench is provided on the frame, and two relatively arranged clamping mechanisms are provided on the workbench, and the clamping mechanisms are used for clamping workpieces; the clamping mechanisms include:

[0005] A connecting beam, which is arranged on the workbench;

[0006] A mounting seat, which is arranged in the middle of the connecting beam and is fixedly connected thereto;

[0007] A turning plate, which is rotatably connected to the mounting seat through a rotating shaft. A backing plate is provided on the turning plate, and the backing plate is detachably and fixedly connected to the turning plate, and the backing plate is used for pressing the workpiece;

[0008] A gear is provided in the middle of the rotating shaft, and a rack meshed with the gear is provided below the gear, and the rack can move along the rotation direction of the teeth of the gear.

[0009] Further, the rack is arranged in a guide groove, the guide groove is fixedly connected to the connecting beam, a driving lead screw threadedly connected to the rack is provided on the rack, the driving lead screw passes through the rack, and both ends of the driving lead screw are rotatably connected to the guide groove. A crank is provided outside the guide groove and is fixedly connected to the driving lead screw.

[0010] Further, a guiding mechanism is further included, and the guiding mechanism includes:

[0011] Sliders, which are arranged at both ends of the connecting beam and are fixedly connected thereto;

[0012] Sliding rails, corresponding sliding rails are provided on the workbench for the sliders, and the sliders are slidably connected to the sliding rails.

[0013] Further, a two-way linkage mechanism is further provided on the clamping mechanism, and the two-way linkage mechanism includes:

[0014] Bi-directional screw rod, both ends of the bi-directional screw rod are rotationally connected to the workbench through fixed seats, positive rotation threads and reverse rotation threads are symmetrically arranged on both sides of the bi-directional screw rod, the bi-directional screw rod passes through sliders on both sides of the workbench, and is threadedly connected to the corresponding sliders through the positive rotation threads and the reverse rotation threads; a second crank is provided at the end of at least one of the bi-directional screw rods, and the second crank is used to rotate the bi-directional screw rod.

[0015] Further, the frame includes four columns, the columns are arranged around the bottom of the workbench, and cushion blocks are provided at the bottoms of the columns, and the cushion blocks are used to increase the contact area with the ground.

[0016] Further, the slider is a T-shaped slider, and the slide rail is a T-shaped slide rail.

[0017] Further, the turning plate is a rectangular steel plate, and the backing plate is threadedly connected to the turning plate through countersunk head bolts.

[0018] The utility model has the following beneficial effects:

[0019] The utility model has a simple structure and is convenient to operate. Only need to shake the bi-directional screw rod through the second crank, drive the sliders on the left and right sides of the workbench to move towards each other through the bi-directional screw rod until reaching the position of the workpiece, then rotate the driving screw rod through the first crank to drive the rack to move, and further drive the turning plate to turn downwards until the backing plate presses the workpiece; according to workpieces with different thicknesses, backing plates with different thicknesses can be replaced, having the effect of wide application range. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the utility model;

[0021] Figure 2 is a front view schematic diagram of the utility model;

[0022] Figure 3 is Figure 1 a partial enlarged schematic diagram at B of

[0023] Figure 4 is a left view schematic diagram of the utility model;

[0024] Figure 5 is a top view schematic diagram of the utility model;

[0025] Figure 6 is a schematic diagram of the connection relationship between the turning plate and the backing plate;

[0026] In the figure: 1, frame; 2, workbench; 3, clamping mechanism; 301, connecting beam; 302, mounting seat; 303, turning plate; 304, rotating shaft; 305, gear; 306, rack; 307, guiding groove; 308, driving lead screw; 309, first crank; 4, slider; 5, bidirectional linkage mechanism; 501, bidirectional screw; 502, second crank; 6, countersunk head bolt; 7, backing plate; 8, slide rail. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0030] Please refer to Figures 1-6 , a tooling fixture, comprising: a frame 1; a workbench 2 is provided on the frame 1, and two relatively arranged clamping mechanisms 3 are provided on the workbench 2, and the clamping mechanisms 3 are used for clamping workpieces; the clamping mechanisms 3 include:

[0031] a connecting beam 301, the connecting beam 301 is arranged on the workbench 2, and the connecting beam 301 is slidably connected to the workbench 2;

[0032] Mounting base 302, which is provided in the middle of the connecting beam 301 and fixedly connected thereto;

[0033] Flip plate 303, which is rotatably connected to the mounting base 302 through a rotating shaft 304. A backing plate 7 is provided on the flip plate 303, and the backing plate 7 is detachably and fixedly connected to the flip plate 303. The backing plate 7 is used to press the workpiece;

[0034] A gear 305 is provided in the middle of the rotating shaft 304. A rack 306 engaged with the gear 305 is provided below the gear 305, and the rack 306 can move along the direction of the teeth of the gear 305.

[0035] In this embodiment, the rack 306 is provided in a guiding groove 307, and the guiding groove 307 is fixedly connected to the connecting beam 301. The rack 306 is provided with a driving lead screw 308 threadedly connected thereto. The driving lead screw 308 passes through the rack 306, and both ends of the driving lead screw 308 are rotatably connected to the guiding groove 307. A crank 309 fixedly connected to the driving lead screw 308 is provided outside the guiding groove 307.

[0036] In this embodiment, a guiding mechanism is further included. The guiding mechanism includes:

[0037] Sliders 4, which are provided at both ends of the connecting beam 301 and fixedly connected thereto;

[0038] Sliding rails 8. The workbench 2 is provided with sliding rails 8 corresponding to the sliders 4, and the sliders 4 are slidably connected to the sliding rails 8.

[0039] In this embodiment, a two-way linkage mechanism 5 is further provided on the clamping mechanism 3. The two-way linkage mechanism 5 includes:

[0040] A two-way screw 501, whose both ends are rotatably connected to the workbench 2 through fixing seats. Positive threads and reverse threads are symmetrically provided on both sides of the two-way screw 501. The two-way screw 501 passes through the sliders 4 on both sides of the workbench 2 and is threadedly connected to the corresponding sliders 4 through the positive threads and reverse threads; A crank 502 is provided at the end of at least one two-way screw 501, and the crank 502 is used to rotate the two-way screw 501.

[0041] In this embodiment, the frame 1 includes four columns, which are provided around the bottom of the workbench 2. A cushion block is provided at the bottom of the column, and the cushion block is used to increase the contact area with the ground.

[0042] In this embodiment, the slider 4 is a T-shaped slider 4, and the sliding rail 8 is a T-shaped sliding rail 8.

[0043] In this embodiment, the turning plate 303 is a rectangular steel plate, and the backing plate 7 is threadedly connected to the turning plate 303 through the countersunk head bolt 6.

[0044] The utility model has the following beneficial effects:

[0045] The structure of the utility model is simple and the operation is convenient. Only by shaking the bidirectional screw 501 through the second crank 502, the sliders 4 on the left and right sides of the workbench 2 are driven by the bidirectional screw 501 to move towards each other until they reach the position of the workpiece. Then, by rotating the driving lead screw 308 through the first crank 309, the rack 306 is driven to move, and further the turning plate 303 is driven to turn downwards until the backing plate 7 presses the workpiece tightly. Different backing plates 7 with different thicknesses can be replaced according to workpieces with different thicknesses, achieving the effect of a wide application range.

Claims

1. A tooling fixture, comprising: Frame; characterized in that: a workbench is provided on the frame, two oppositely arranged clamping mechanisms are provided on the workbench, and the clamping mechanisms are used to clamp workpieces; the clamping mechanisms include: Connecting beam, the connecting beam is arranged on the workbench; Mounting seat, the mounting seat is arranged in the middle of the connecting beam and is fixedly connected thereto; Flip plate, the flip plate is rotatably connected to the mounting seat through a rotating shaft, a backing plate is arranged on the flip plate, the backing plate is detachably and fixedly connected to the flip plate, and the backing plate is used to press the workpiece; A gear is arranged in the middle of the rotating shaft, a rack is arranged below the gear and is meshed with the gear, and the rack can move along the rotation direction of the teeth of the gear.

2. The fixture according to claim 1, wherein: The rack is arranged in a guide groove, the guide groove is fixedly connected to the connecting beam, a driving lead screw is threadedly connected to the rack, the driving lead screw passes through the rack, and both ends of the driving lead screw are rotatably connected to the guide groove. A crank one fixedly connected to the driving lead screw is arranged outside the guide groove.

3. A fixture according to claim 1, characterized in that: It further includes a guiding mechanism, and the guiding mechanism includes: Sliders, the sliders are arranged at both ends of the connecting beam and are fixedly connected thereto; Sliding rails, sliding rails corresponding to the sliders are arranged on the workbench, and the sliders are slidably connected to the sliding rails.

4. The fixture according to claim 2, characterized in that: A two-way linkage mechanism is further arranged on the clamping mechanism, and the two-way linkage mechanism includes: Two-way screw rod, both ends of the two-way screw rod are rotatably connected to the workbench through fixed seats, a right-handed thread and a left-handed thread are symmetrically arranged on both sides of the two-way screw rod, the two-way screw rod passes through the sliders on both sides of the workbench, and is threadedly connected to the corresponding sliders through the right-handed thread and the left-handed thread; a crank two is arranged at the end of at least one of the two-way screw rods, and the crank two is used to rotate the two-way screw rod.

5. A tooling fixture according to claim 1, characterized in that: The frame includes four columns, the columns are arranged around the bottom of the workbench, and cushion blocks are arranged at the bottoms of the columns, and the cushion blocks are used to increase the contact area with the ground.

6. The jig according to claim 3, wherein: The slider is a T-shaped slider, and the sliding rail is a T-shaped sliding rail.

7. A fixture according to claim 4, characterized in that: The flip plate is a rectangular steel plate, and the backing plate is threadedly connected to the flip plate through countersunk head bolts.

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