Self-positioning clamp for holding printer housing

Abstract

This utility model discloses a self-positioning fixture for clamping a printer housing, relating to the field of fixture technology. The utility model includes a base, with symmetrically arranged clamping components around the workpiece on the top of the base. Each clamping component includes an array of lever-rotary cylinders. Pre-positioning components are also symmetrically arranged on both sides of the workpiece on the top of the base. Each pre-positioning component includes a positioning element rotatably connected to the top of the base and an elastic element disposed at the bottom of the base. The positioning element is located between two lever-rotary cylinders, and the elastic element possesses elastic deformation potential energy to drive the positioning element to abut against the outer wall of the workpiece. Through this structural design, the utility model achieves workpiece positioning while expanding its applicability and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to a self-positioning clamp, and more specifically, to a self-positioning clamp for holding a printer housing. Background Technology

[0002] As a major structural and aesthetic component of the printer, the manufacturing precision of the printer casing directly affects the assembly quality of subsequent parts and the overall aesthetics of the printer. Furthermore, printer casings are mostly die-cast parts, requiring accurate and stable fixation to fixtures during CNC machining, painting, or assembly processes.

[0003] Currently, most common fixtures use pneumatic or hydraulic cylinders to drive the pressure plate to clamp the workpiece, and use corresponding jigs to position the workpiece. The positioning of the jigs mostly relies on the positioning holes on the workpiece for positioning. This positioning is mostly only for specific workpieces. If other workpieces need to be processed, the jigs need to be changed, which is cumbersome and affects work efficiency.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a self-positioning clamp for holding a printer housing.

[0006] The technical solution of this utility model is: A self-positioning fixture for holding a printer housing includes a base. The top of the base has symmetrically arranged clamping components around a workpiece. Each clamping component includes a plurality of lever-rotary cylinders arranged in an array. The top of the base also has symmetrically arranged pre-positioning components on both sides of the workpiece. Each pre-positioning component includes a positioning element rotatably connected to the top of the base and an elastic element disposed at the bottom of the base. The positioning element is located between two lever-rotary cylinders. The elastic element has elastic deformation potential energy to drive the positioning element to abut against the outer wall of the workpiece.

[0007] The present invention is further configured such that the pre-positioning component includes a rotating rod, the rotating rod being rotatably connected to the base, the top end of which extends upward toward the base, and the positioning element being fixedly connected to the top end of the rotating rod.

[0008] The present invention is further configured such that the pre-positioning component includes a positioning block and a transmission structure. The positioning block is slidably connected to the top of the base in a horizontal direction and has a mating part that matches the cross-section of the inner sidewall of the workpiece. The positioning block is connected to the rotating rod through the transmission structure, so that the rotation of the rotating rod can drive the positioning block to slide horizontally.

[0009] The present invention is further configured such that the transmission structure includes a transmission component and a connecting rod, the transmission component is fixedly connected to the bottom end of the rotating rod; the bottom of the positioning block is provided with a transmission part; one end of the connecting rod is rotatably connected to the transmission component, and the other end is rotatably connected to the transmission part.

[0010] The present invention is further configured such that a slide rail is provided on the top of the base, and the positioning block is slidably connected to the slide rail.

[0011] The present invention is further configured such that a plurality of ball bearings are provided on the side wall of the positioning block that contacts the side wall of the slide rail.

[0012] The present invention is further configured such that the mating part is detachably connected to the top of the positioning block by bolts.

[0013] The present invention is further configured such that the end of the mating part facing the inner wall of the workpiece is configured as a V-shape.

[0014] The present invention is further configured such that the elastic element is a torsion spring, which is sleeved on the outer peripheral wall of the rotating rod, with one end acting on the rotating rod and the other end acting on the base.

[0015] The beneficial technical effects of this utility model are: By setting up a pre-positioning component, and utilizing the cooperation of the positioning element, elastic element, and positioning block, the elastic element makes the positioning element abut against the outer wall of the workpiece. The symmetrical arrangement ensures that the workpiece is centered between the two positioning elements, limiting the horizontal displacement of the workpiece. The V-shaped mating part on the positioning block also has a certain self-centering effect, further limiting the horizontal displacement of the workpiece. This makes the positioning of the workpiece more accurate and has a wider range of applications. It can achieve the positioning effect of the workpiece without changing the fixture, thus expanding the scope of application and improving work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model after the workpiece is hidden; Figure 3 This is a structural schematic diagram of the present invention from another perspective after the workpiece is hidden.

[0017] In the diagram, 1 is the base; 2 is the lever-turning cylinder; 3 is the positioning component; 4 is the elastic component; 5 is the positioning block; 51 is the transmission part; 52 is the mating part; 6 is the rotating rod; 7 is the connecting rod; 71 is the transmission component; 8 is the slide rail; and 81 is the through port. Detailed Implementation

[0018] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] A self-positioning clamp for holding a printer housing, such as Figures 1-3 As shown, the device includes a base 1. A clamping assembly is symmetrically arranged around the workpiece on the top of the base 1. The clamping assembly includes several lever-rotating cylinders 2 arranged in an array. Pre-positioning assemblies are also symmetrically arranged on both sides of the workpiece on the top of the base 1. Each pre-positioning assembly includes a positioning element 3 rotatably connected to the top of the base 1 and an elastic element 4 located at the bottom of the base 1. The positioning element 3 is located between the two lever-rotating cylinders 2. The elastic element 4 possesses elastic deformation potential energy to drive the positioning element 3 to abut against the outer wall of the workpiece. The initial position of the positioning element 3 is maintained at an angle to the outer wall of the workpiece. This angled arrangement provides excellent guiding effect, allowing the positioning element 3 to rotate.

[0020] The pre-positioning component also includes a positioning block 5, which is connected to the positioning element 3 via a transmission structure. A rotating rod 6 is rotatably connected to the base 1, with the top end of the rotating rod 6 extending upward toward the base 1. The positioning element 3 is fixedly connected to the top end of the rotating rod 6, creating a gap between the positioning element 3 and the lever angle cylinder 2, thereby preventing the positioning element 3 from colliding with the lever angle cylinder 2 and ensuring the service life of the overall structure. The transmission structure includes a transmission element 71 and a connecting rod 7. The positioning block 5 is slidably connected to the top of the base 1 in the horizontal direction. The positioning block 5 is provided with a mating part 52 that matches the cross-section of the inner sidewall of the workpiece. The bottom end of the rotating rod 6 extends toward the bottom of the base 1 and is fixedly connected to the transmission element 71. The bottom of the positioning block 5 is provided with a transmission part 51 that passes through the base 1. The transmission element 71 and the transmission part 51 are connected via a connecting rod 7. One end of the connecting rod 7 is rotatably connected to the transmission element 71, and the other end of the connecting rod 7 is rotatably connected to the transmission part 51. The elastic element 4 is a torsion spring, which is sleeved on the outer peripheral wall of the rotating rod 6. One end of the torsion spring is set on the rotating rod 6, and the other end of the torsion spring is set on the base 1. A slide rail 8 is provided on the top of the base 1. The positioning block 5 is slidably connected inside the slide rail 8. A ball bearing is provided on the side wall of the positioning block 5 that contacts the side wall of the slide rail 8. The ball bearing contacts the side wall of the slide rail 8. A through-hole 81 is provided on the inner bottom wall of the slide rail 8 for the transmission part 51 to pass through. There is a gap between the two sides of the transmission part 51 and the inner side wall of the through-hole 81. By setting the slide rail 8, the movement trajectory of the positioning block 5 is restricted, making the movement of the positioning block 5 more stable. The ball bearing reduces the friction between the positioning block 5 and the slide rail 8, making the sliding of the positioning block 5 more convenient, thereby making the rotation of the rotating rod 6 more convenient. The mating part 52 is detachably connected to the top of the positioning block 5 by bolts. The inner side wall of the workpiece is provided with a raised reinforcing rib. The end of the mating part 52 facing the inner side wall of the workpiece is set in a V-shape. By setting the mating part 52 with a V-shaped end, the V-shape has a certain guiding effect and a certain self-centering effect, thereby further ensuring the positioning effect of the workpiece and making the positioning of the workpiece by the overall pre-positioning assembly more stable.

[0021] The working principle is as follows: The cylinder retracts, lifting the clamping components and placing the workpiece in an inverted position between the symmetrical clamping assemblies. The workpiece then slides horizontally between the two positioning components 3. Because the positioning components 3 are inclined, when the workpiece is touched, the guiding force causes it to rotate away from the workpiece. At this time, the elastic component 4 deforms under external force. When it reaches the corresponding position, the elastic component 4, through its own elasticity, drives the rotating rod 6 to reset, causing the positioning component 3 to rotate towards the outer shell until it contacts the workpiece. Because the positioning components 3 are mutually positioned, when the two positioning components 3 contact the outer wall of the workpiece... Because the two positioning components 3 move simultaneously, they can initially position the workpiece. A positioning block 5 is provided and is connected to the positioning component 3. The mating part 52 at the top of the positioning block 5 has a V-shaped end. When the V-shaped mating part 52 touches the reinforcing rib, the V-shaped guiding effect is used to position the workpiece horizontally, further ensuring the positioning effect of the overall pre-positioning assembly on the workpiece, making the positioning more stable. Finally, the cylinder is lifted, the clamping component rotates toward the workpiece, and clamps it onto the workpiece, so that the workpiece is stably fixed on the base 1, preventing the workpiece from shaking and facilitating subsequent processing.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A self-positioning clamp for holding a printer housing, characterized in that: The device includes a base (1), on which clamping components are symmetrically arranged around the workpiece. The clamping components include a plurality of lever-rotating cylinders (2) arranged in an array. Pre-positioning components are also symmetrically arranged on both sides of the workpiece on the top of the base (1). The pre-positioning components include a positioning element (3) rotatably connected to the top of the base (1) and an elastic element (4) arranged at the bottom of the base (1). The positioning element (3) is located between the two lever-rotating cylinders (2). The elastic element (4) has elastic deformation potential energy to drive the positioning element (3) to abut against the outer wall of the workpiece.

2. The self-positioning fixture for holding a printer housing according to claim 1, characterized in that: The prepositioning component also includes a rotating rod (6), which is rotatably connected to the base (1) and its top end extends upward toward the base (1). The positioning element (3) is fixedly connected to the top end of the rotating rod (6).

3. A self-positioning clamp for holding a printer housing according to claim 2, characterized in that: The pre-positioning component also includes a positioning block (5) and a transmission structure. The positioning block (5) is slidably connected to the top of the base (1) in the horizontal direction, and a mating part (52) matching the cross section of the inner sidewall of the workpiece is provided on it. The positioning block (5) is connected to the rotating rod (6) through the transmission structure, so that the rotation of the rotating rod (6) can drive the positioning block (5) to slide horizontally.

4. A self-positioning clamp for holding a printer housing according to claim 3, characterized in that: The transmission structure includes a transmission component (71) and a connecting rod (7). The transmission component (71) is fixedly connected to the bottom end of the rotating rod (6). The bottom of the positioning block (5) is provided with a transmission part (51). One end of the connecting rod (7) is rotatably connected to the transmission component (71), and the other end is rotatably connected to the transmission part (51).

5. A self-positioning clamp for holding a printer housing according to claim 3, characterized in that: The base (1) has a slide rail (8) on its top, and the positioning block (5) is slidably connected to the slide rail (8).

6. A self-positioning clamp for holding a printer housing according to claim 5, characterized in that: The positioning block (5) has several ball bearings on the side wall that contacts the side wall of the slide rail (8).

7. A self-positioning clamp for holding a printer housing according to claim 3, characterized in that: The mating part (52) is detachably connected to the top of the positioning block (5) by bolts.

8. A self-positioning clamp for holding a printer housing according to claim 3 or 7, characterized in that: The end of the mating part (52) facing the inner wall of the workpiece is configured as a V-shape.

9. A self-positioning clamp for holding a printer housing according to claim 2, characterized in that: The elastic element (4) is a torsion spring, which is sleeved on the outer peripheral wall of the rotating rod (6), with one end acting on the rotating rod (6) and the other end acting on the base (1).

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