Positioning clamp for CNC machining center

Abstract

The utility model discloses a positioning clamp for a CNC machining center, and relates to the technical field of CNC machining centers. The positioning clamp comprises a positioning clamp body, clamping grooves are formed in the front side and the rear side of the bottom of the positioning clamp body, a fixing shell is movably connected to the bottom of the positioning clamp body, fixing blocks are fixedly connected to the two sides of the bottom of the front side and the two sides of the bottom of the rear side of the fixing shell, and two limiting structures are arranged in an inner cavity of the fixing shell and comprise fixing sleeves. The side, close to the inner wall of the fixing shell, of the fixing sleeve is fixedly connected with the inner wall of the fixing shell. The fixing shell is fixed through the fixing block, the fixing shell supports the positioning clamp body, the limiting structure is matched with the fixing shell and the positioning clamp body for use, and the positioning clamp body is locked on the surface of the fixing shell, so that normal use of the positioning clamp body is ensured, meanwhile, the positioning clamp body is convenient to disassemble, and the positioning clamp is convenient to use. And a worker can conveniently overhaul the positioning clamp body.

Description

Technical Field

[0001] The utility model belongs to the technical field of CNC machining centers, and particularly relates to a positioning fixture for a CNC machining center. Background Technique

[0002] CNC machining centers generally refer to CNC machining. Generally, CNC machining usually refers to computer numerical control precision machining, such as CNC machining lathes, CNC machining mills, CNC machining boring mills, etc.

[0003] The field of CNC machining centers is a general term. There are many types of machining included in the field of CNC machining centers, among which there is a positioning fixture. However, the existing positioning fixtures are all installed in a fixed installation manner during the installation process. This installation method is not convenient for the staff to disassemble the positioning fixture. Therefore, when the positioning fixture needs to be repaired, it can only be repaired at the fixed position. But when the damaged part of the positioning fixture cannot be repaired, the fixed position of the positioning fixture still needs to be removed, thus increasing the maintenance time of the staff for the positioning fixture.

[0004] Therefore, we provide a positioning fixture for a CNC machining center to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a positioning fixture for a CNC machining center. Through the cooperative setting of the positioning fixture body, the clamping groove, the fixed shell and the limiting structure, the problem that the existing positioning fixture is not convenient for the staff to quickly disassemble it is solved.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a positioning fixture for a CNC machining center, including a positioning fixture body. Clamping grooves are respectively arranged on the front side and the rear side of the bottom of the positioning fixture body. The bottom of the positioning fixture body is movably connected with a fixed shell. Fixed blocks are respectively fixed on both sides of the front bottom and the rear bottom of the fixed shell. Two limiting structures are arranged in the inner cavity of the fixed shell.

[0008] The limiting structure includes a fixed sleeve. One side of the fixed sleeve close to the inner wall of the fixed shell is fixedly connected to the inner wall of the fixed shell. A limiting rod is fixedly connected to the inner cavity of the fixed sleeve. Limiting circular plates are fixedly connected to both sides of the surface of the limiting rod. A spring is fixedly connected to the side of the limiting circular plate away from the fixed sleeve. A clamping block is fixedly connected to the side of the spring away from the limiting circular plate. The inner cavity of the clamping block is slidably connected to the surface of the limiting rod. A positioning block is movably connected to the side of the clamping block away from the spring. A toothed plate is fixedly connected to the bottom of the positioning block. The teeth of the two toothed plates are meshed with a gear rod. Both opposite sides of the two gear rods extend to the outside of the fixed shell and are fixedly connected to a knob.

[0009] The present utility model is further arranged such that a sliding sleeve is slidably connected to the surface of the toothed plate. One side of the sliding sleeve close to the inner wall of the fixed shell is fixedly connected to the inner wall of the fixed shell.

[0010] The present utility model is further arranged such that a bearing seat is slidably connected to the surface of the gear rod. One side of the bearing seat close to the inner wall of the fixed shell is fixedly connected to the inner wall of the fixed shell.

[0011] The present utility model is further arranged such that limiting grooves are opened at the four corners of the top of the fixed shell. A limiting block is clamped in the inner cavity of the limiting groove. The top of the limiting block is fixedly connected to the positioning fixture body.

[0012] The present utility model is further arranged such that two fixing plates are fixedly connected to the inner cavity of the fixed shell.

[0013] The present utility model is further arranged such that a storage box is movably connected between the opposite sides of the two fixing plates. The contact surface between the storage box and the inner cavity of the fixed shell is slidably connected.

[0014] The present utility model is further arranged such that a handle is fixedly connected to the left side of the storage box.

[0015] The present utility model has the following beneficial effects:

[0016] 1. The present utility model fixes the fixed shell through the fixed block, and the fixed shell supports the positioning fixture body. By using the limiting structure in cooperation with the fixed shell and the positioning fixture body, the positioning fixture body is locked on the surface of the fixed shell, thereby ensuring the normal use of the positioning fixture body. At the same time, it is convenient to disassemble the positioning fixture body, facilitating the maintenance of the positioning fixture body by the staff.

[0017] 2. The utility model provides a limiting and supporting effect on the toothed plate by setting a sliding sleeve, facilitates the movement of the gear rod and limits the gear rod by setting a bearing seat, makes the connection between the positioning fixture body and the fixed shell more firm by setting the cooperation of a limiting groove and a limiting block, provides a limiting effect on the storage box by setting a fixing plate, the bottom of the positioning fixture body is hollow, the storage box is convenient for storage and the positioning fixture body can collect the debris generated by the processed workpiece, and the handle facilitates the extraction of the storage box from the fixed shell.

[0018] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0020] Figure 1 is a three-dimensional structure diagram of a positioning fixture for a CNC machining center;

[0021] Figure 2 is a top view partial structure split diagram of a positioning fixture for a CNC machining center;

[0022] Figure 3 is a schematic diagram of the limiting structure of a positioning fixture for a CNC machining center;

[0023] Figure 4 is an enlarged view of the gear rod and the knob of a positioning fixture for a CNC machining center;

[0024] Figure 5 is a cross-sectional view of the positioning fixture body of a positioning fixture for a CNC machining center;

[0025] Figure 6 is a Figure 5 enlarged view of part A in a positioning fixture for a CNC machining center.

[0026] In the drawings: 1. Positioning fixture body; 2. Card slot; 3. Fixed shell; 4. Fixed block; 5. Limiting structure; 501. Fixed sleeve; 502. Limiting rod; 503. Limiting circular plate; 504. Spring; 505. Clamping block; 506. Positioning block; 507. Toothed plate; 508. Sliding sleeve; 509. Gear rod; 510. Knob; 511. Bearing seat; 6. Fixing plate; 7. Storage box; 8. Handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Specific Embodiment 1

[0029] Please refer to Figures 1-6 , the present utility model is a positioning fixture for a CNC machining center, including a positioning fixture body 1. Slots 2 are provided on both the front side and the rear side of the bottom of the positioning fixture body 1. A fixed shell 3 is movably connected to the bottom of the positioning fixture body 1. Fixed blocks 4 are fixedly connected to both sides of the front side and the rear side of the bottom of the fixed shell 3. Two limiting structures 5 are arranged in the inner cavity of the fixed shell 3. The limiting structure 5 includes a fixed sleeve 501. One side of the fixed sleeve 501 close to the inner wall of the fixed shell 3 is fixedly connected to the inner wall of the fixed shell 3. A limiting rod 502 is fixedly connected to the inner cavity of the fixed sleeve 501. Limiting circular plates 503 are fixedly connected to both sides of the surface of the limiting rod 502. A spring 504 is fixedly connected to the side of the limiting circular plate 503 away from the fixed sleeve 501. A clamping block 505 is fixedly connected to the side of the spring 504 away from the limiting circular plate 503. The inner cavity of the clamping block 505 is slidably connected to the surface of the limiting rod 502. A positioning block 506 is movably connected to the side of the clamping block 505 away from the spring 504. A toothed plate 507 is fixedly connected to the bottom of the positioning block 506. The toothed portions of the two toothed plates 507 are meshed with a gear rod 509. Opposite sides of the two gear rods 509 extend to the outside of the fixed shell 3 and are fixedly connected to a knob 510.

[0030] Specifically: The staff rotates the knob 510, and the knob 510 drives the gear rod 509 to rotate. During the rotation of the gear rod 509, the two toothed plates 507 are driven to move relatively. During the movement of the toothed plate 507, the clamping block 505 is driven by the positioning block 506 to compress the spring 504. At this time, the clamping block 505 will be disengaged from the limit of the slot 2. Subsequently, the staff can disassemble the positioning fixture body 1 on the top of the fixed shell 3. Specific Embodiment 2

[0032] Please refer to Figures 1-6 , on the basis of Specific Embodiment 1, a sliding sleeve 508 is slidably connected to the surface of the toothed plate 507. One side of the sliding sleeve 508 close to the inner wall of the fixed shell 3 is fixedly connected to the inner wall of the fixed shell 3. A bearing seat 511 is slidably connected to the surface of the gear rod 509. One side of the bearing seat 511 close to the inner wall of the fixed shell 3 is fixedly connected to the inner wall of the fixed shell 3.

[0033] Specifically: by providing the sliding sleeve 508 , a limiting support function is provided for the tooth plate 507 , and by providing the bearing seat 511 , the gear rod 509 is limited while being movable. Specific embodiment three

[0035] See also Figures 1-6 On the basis of the first and second specific embodiments, the four corners of the top of the fixed shell 3 are provided with limiting grooves, the inner cavity of the limiting grooves is clamped with limiting blocks, the top of the limiting blocks is fixedly connected to the positioning fixture body 1, the inner cavity of the fixed shell 3 is fixedly connected with two fixing plates 6, and a storage box 7 is movably connected between the opposite sides of the two fixing plates 6. The contact surface between the storage box 7 and the inner cavity of the fixed shell 3 is a sliding connection, and a handle 8 is fixedly connected to the left side of the storage box 7.

[0036] Specifically: by setting the limit groove and the limit block, the positioning fixture body 1 and the fixed shell 3 are more tightly connected, and the fixed plate 6 is set to limit the storage box 7. The bottom of the positioning fixture body 1 is hollowed out, and the storage box 7 is convenient for storing and collecting the debris generated by the processing workpiece by the positioning fixture body 1. The handle 8 is convenient for pulling the storage box 7 out of the fixed shell 3.

[0037] The working principle of the utility model is as follows: the staff rotates the knob 510, and the knob 510 drives the gear rod 509 to rotate. The gear rod 509 drives the two tooth plates 507 to move relative to each other during the rotation. The tooth plates 507 drive the clamping block 505 to squeeze the spring 504 through the positioning block 506 during the movement. At this time, the clamping block 505 will be out of the limit of the slot 2, and then the staff can disassemble the positioning fixture body 1 on the top of the fixed shell 3.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A positioning fixture for a CNC machining center, comprising a positioning fixture body (1), characterized in that: The front and rear sides of the bottom of the positioning fixture body (1) are both provided with a clamping groove (2); the bottom of the positioning fixture body (1) is movably connected to a fixed shell (3); both sides of the bottom of the front and rear sides of the fixed shell (3) are fixedly connected to fixed blocks (4); and the inner cavity of the fixed shell (3) is provided with two limiting structures (5); The limiting structure (5) comprises a fixing sleeve (501), wherein a side of the fixing sleeve (501) close to the inner wall of the fixing shell (3) is fixedly connected to the inner wall of the fixing shell (3), an inner cavity of the fixing sleeve (501) is fixedly connected to a limiting rod (502), both sides of the surface of the limiting rod (502) are fixedly connected to limiting circular plates (503), a side of the limiting circular plate (503) away from the fixing sleeve (501) is fixedly connected to a spring (504), and a side of the spring (504) away from the limiting circular plate (503) is fixedly connected to the fixing sleeve (501). A clamping block (505) is fixedly connected to the side, the inner cavity of the clamping block (505) is slidably connected to the surface of the limit rod (502), the side of the clamping block (505) away from the spring (504) is movably connected to a positioning block (506), the bottom of the positioning block (506) is fixedly connected to a tooth plate (507), the teeth of the two tooth plates (507) are meshed with gear rods (509) at the opposite positions, and the opposite sides of the two gear rods (509) extend to the outside of the fixed shell (3) and are fixedly connected to a knob (510).

2. A positioning fixture for a CNC machining center according to claim 1, characterized in that: A sliding sleeve (508) is slidably connected to the surface of the tooth plate (507), and a side of the sliding sleeve (508) close to the inner wall of the fixed shell (3) is fixedly connected to the inner wall of the fixed shell (3).

3. A positioning fixture for a CNC machining center according to claim 1, characterized in that: A bearing seat (511) is slidably connected to the surface of the gear rod (509), and a side of the bearing seat (511) close to the inner wall of the fixed shell (3) is fixedly connected to the inner wall of the fixed shell (3).

4. A positioning fixture for a CNC machining center according to claim 1, characterized in that: The four corners of the top of the fixed shell (3) are provided with limiting grooves, the inner cavity of the limiting groove is clamped with a limiting block, and the top of the limiting block is fixedly connected to the positioning fixture body (1).

5. The positioning fixture for a CNC machining center according to claim 1, characterized in that: Two fixing plates (6) are fixedly connected to the inner cavity of the fixing shell (3).

6. A positioning fixture for a CNC machining center according to claim 5, characterized in that: A material storage box (7) is movably connected between opposite sides of the two fixed plates (6), and the contact surface between the material storage box (7) and the inner cavity of the fixed shell (3) is in sliding connection.

7. A positioning fixture for a CNC machining center according to claim 6, characterized in that: A handle (8) is fixedly connected to the left side of the material storage box (7).

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