Fixing clamp for crosshead machining

Abstract

The utility model provides a fixing clamp for crosshead machining, which relates to the technical field of clamp structures and comprises a clamp seat, the cross section of the clamp seat is in a shape of a Chinese character'ao ', a clamping groove is formed at the top end of the clamp seat, lifting grooves are arranged on protrusions on two sides of the top end, and lifting seats are arranged in the lifting grooves. Positively and negatively rotating the first adjusting knob to drive the lifting seat to ascend / descend; the two second adjusting knobs are rotated positively and negatively to drive the upper clamping frame to get close to or get away from each other; the third adjusting knob is rotated positively and negatively to drive the lower clamping frame to approach the other end of the clamping groove; and through the design of the lifting seat, the upper clamping frame and the lower clamping frame, the device can adapt to crosshead bodies with different heights, it is ensured that the upper side and the lower side of the shaft hole can be adaptively fixed, the shaft hole cannot be interfered in the fixing process, and then the stability in the machining process is improved.

Description

Technical Field

[0001] This utility model relates to the field of clamping structure technology, and in particular to a fixing clamp for machining crossheads. Background Technology

[0002] The crosshead consists of a crosshead body, a slide plate, and a crosshead pin. According to the connection method between the crosshead body and the plate, it can be divided into two types: integral and detachable.

[0003] During the machining process, the four sides of the crosshead are symmetrical planes and arc surfaces, and the shaft hole is opened when viewed symmetrically on the plane. During the machining process, the shaft hole is processed. However, the crosshead body is relatively high, and ordinary jigs only clamp the four bottom surfaces. When the pressure is too great, it is easy to break away from the jig or the fixation stability is insufficient. Therefore, we propose a fixing jig for machining crossheads. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to the height of the crosshead body, and fix the upper and lower sides of the shaft hole to avoid shaking or even falling off the fixture during the processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fixing fixture for machining crossheads includes a fixture base. The fixture base has a "U" shaped cross section with a clamping groove at the top. Both sides of the top section have lifting grooves, and a lifting seat is provided in the lifting groove.

[0007] The lifting groove has a first threaded hole through the bottom of the clamp seat. A first adjusting knob is threaded upward at the bottom of the first threaded hole. The other end of the first adjusting knob is rotatably connected inside the lifting seat. Rotating the first adjusting knob in both directions causes the lifting seat to rise / fall.

[0008] A second threaded hole is provided on the outer side of the two lifting seats that are far apart. A second adjusting knob is threaded into the second threaded hole and connected to the adjacent lifting seat. The other end of the second adjusting knob is rotatably connected to the upper clamping frame inside the lifting seat. Rotating the two second adjusting knobs in both directions will cause the upper clamping frame to move closer to / away from the lifting seat.

[0009] A third threaded hole is symmetrically opened on the outer side of the clamping groove on one side. A third adjusting knob is threadedly connected to the outer side of the third threaded hole facing the clamping groove. The other end of the third adjusting knob is rotatably connected to the lower clamping frame in the clamping seat. Rotating the third adjusting knob in both directions will cause the lower clamping frame to move closer to the other end of the clamping groove.

[0010] Furthermore, the bottom of the clamp seat is equipped with support legs.

[0011] Furthermore, the first, second, and third adjustment knobs each consist of a rotating handle, a threaded rod, and a rotating plate.

[0012] Furthermore, the first adjustment knob, the second adjustment knob, and the third adjustment knob are rotatably connected to the lifting seat, the upper clamping frame, and the lower clamping frame through rotating plates, and the cross-section of the rotating groove is convex.

[0013] Furthermore, the clamping groove has a through-hole design on both sides, which can be used with an external cylinder to push the crosshead body inside the clamping groove.

[0014] Furthermore, the upper clamping frame is built into the upper groove of the lifting seat, and the upper clamping frame is slidably connected to the upper groove. An anti-slip pad is adhered to the outer side of the upper clamping frame.

[0015] Furthermore, the lower clamping frame is built into the lower groove of the clamping seat, and the lower clamping frame is slidably connected to the lower groove. An anti-slip pad is adhered to the outer side of the lower clamping frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The design of the lifting seat, upper clamping frame, and lower clamping frame can accommodate crosshead bodies of different heights, ensuring that the upper and lower sides of the shaft hole can be properly fixed without interfering with the shaft hole during fixing, thereby improving the stability during the machining process.

[0018] The design of the first, second, and third adjustment knobs allows for flexible adjustment of the clamping force and position of the fixture to meet different processing needs, while also facilitating the installation and removal of the crosshead body. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of a fixing fixture for machining crossheads provided by this utility model;

[0020] Figure 2 A schematic diagram of the lifting structure of the lifting seat of a fixing fixture for machining crossheads provided by this utility model;

[0021] Figure 3 A schematic diagram of the first adjusting knob connection structure of a fixing fixture for machining crossheads provided by this utility model;

[0022] Figure 4 A schematic diagram of the second adjusting knob connection structure of a fixing fixture for machining crossheads provided by this utility model;

[0023] Figure 5This is a schematic diagram of the third adjusting knob connection structure of a fixed clamp for machining crossheads provided by this utility model.

[0024] Legend: 1. Fixture base; 11. Clamping groove; 12. Third threaded hole; 13. Support leg;

[0025] 2. Lifting groove; 21. First threaded hole;

[0026] 3. Lifting seat; 31. Second threaded hole;

[0027] 4. First adjustment knob;

[0028] 5. Second adjustment knob;

[0029] 6. Upper clamping frame; 61. Upper groove body;

[0030] 7. Third adjustment knob;

[0031] 8. Lower clamping frame; 81. Lower groove body;

[0032] 9. Rotating groove. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0034] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] Example 1

[0038] like Figure 1-5 As shown, this utility model provides a technical solution: a fixing fixture for processing crossheads, including a fixture seat 1, the fixture seat 1 has a "U" shaped cross section forming a clamping groove 11 at the top, and lifting grooves 2 are provided on both sides of the top protrusion, and a lifting seat 3 is provided in the lifting groove 2.

[0039] Fixed adjustment on both sides of the upper end of the crosshead plane: The lifting groove 2 passes through the bottom of the clamp seat 1 and has a first threaded hole 21. The bottom of the first threaded hole 21 is threaded upward to the first adjustment knob 4. The other end of the first adjustment knob 4 is rotatably connected to the lifting seat 3. Rotating the first adjustment knob 4 in both directions will drive the lifting seat 3 to rise / fall.

[0040] Fixing the upper ends of both sides of the crosshead plane: The outer sides of the two lifting seats 3 that are far apart are provided with second threaded holes 31. The second threaded holes 31 are threaded to the adjacent lifting seats 3 with second adjustment knobs 5. The other end of the second adjustment knobs 5 is rotatably connected to the upper clamping frame 6 inside the lifting seat 3. Rotating the two second adjustment knobs 5 in both directions will cause the upper clamping frame 6 to move closer to / away from the lifting seat 3.

[0041] Fixing the lower ends of both sides of the crosshead plane: A third threaded hole 12 is symmetrically opened on the outer side of the clamping groove 11 on one side. The outer side of the third threaded hole 12 is connected to the third adjustment knob 7 by the internal thread of the clamping groove 11. The other end of the third adjustment knob 7 is rotatably connected to the lower clamping frame 8 in the clamping seat 1. Rotating the third adjustment knob 7 in both directions will drive the lower clamping frame 8 to move closer to the other end of the clamping groove 11.

[0042] Example 2

[0043] like Figure 1-5 As shown, the bottom of the clamp base 1 is equipped with a support leg 13 to support the entire clamp.

[0044] The first adjustment knob 4, the second adjustment knob 5, and the third adjustment knob 7 each consist of a rotating handle, a threaded rod, and a rotating plate. The rotating handle facilitates manual operation, the threaded rod achieves linear movement through rotation, and the rotating plate is used to rotatably connect with the rotating groove 9 in the lifting seat 3, the upper clamping frame 6, and the lower clamping frame 8.

[0045] Specifically, the first adjustment knob 4, the second adjustment knob 5, and the third adjustment knob 7 are rotatably connected to the rotating grooves 9 opened in the lifting seat 3, the upper clamping frame 6, and the lower clamping frame 8 via rotating plates. The cross-section of the rotating groove 9 is "convex" to ensure that the adjustment knobs can smoothly drive the clamping frame to move when rotating.

[0046] The clamping groove 11 has a through-hole design on both sides, which can be used with an external cylinder to push the main body of the crosshead in the clamping groove 11. As the flat surfaces at both ends of the crosshead are clamped by the lower clamping frame 8 and the side wall of the clamping groove 11 (including the corresponding clamping by the upper clamping frame 6), the arc surfaces on both sides are clamped by the cylinder in conjunction with the arc surface clamping plate.

[0047] The upper clamping frame 6 is built into the upper groove 61 of the lifting seat 3, and the upper clamping frame 6 is slidably connected to the upper groove 61. An anti-slip pad is glued to the outside of the upper clamping frame 6. The presence of the anti-slip pad will increase the stability and safety of clamping.

[0048] The lower clamping frame 8 is built into the lower groove 81 opened in the clamping seat 1, and the lower clamping frame 8 is slidably connected to the lower groove 81. An anti-slip pad is glued to the outside of the lower clamping frame 8. The presence of the anti-slip pad will increase the stability and safety of clamping.

[0049] The working process of this utility model is as follows: When using a fixed fixture for machining a crosshead, firstly, place the crosshead body into the clamping groove 11, observe and determine the position of the crosshead body's shaft hole, and then adjust the height of the lifting seat 3 by rotating the first adjusting knob 4 in both directions. Leave a machining distance for the shaft hole between the lifting seat 3 and the lifting groove 2. Since the first adjusting knob 4 is rotatably connected to the lifting seat 3 internally, and the first threaded hole 21 allows the threaded part of the knob to move up and down, the lifting seat 3 can be precisely controlled by rotating the knob. After the lifting seat 3 reaches the required height, observe the distance between the two lifting seats 3, and adjust the position of the upper clamping frame 6 by rotating the second adjusting knob 5 in both directions. The second adjusting knob 5 is connected by a thread. The upper clamping frame 6 is rotatably connected to the upper clamping frame 6 within the second threaded hole 31. Rotating the knob allows the upper clamping frame 6 to slide within the upper groove 61 of the lifting seat 3, thereby moving closer to or away from the upper clamping frame 6 on the other lifting seat 3. The position of the lower clamping frame 8 can be adjusted by rotating the third adjusting knob 7 in both directions. The third adjusting knob 7 is threadedly connected to the third threaded hole 12 and rotatably connected to the lower clamping frame 8. Rotating the knob allows the lower clamping frame 8 to slide within the lower groove 81 of the clamping seat 1, thereby moving closer to or away from the other end of the clamping groove 11, ensuring that the upper clamping frame 6 and the lower clamping frame 8 firmly clamp the crosshead body. Finally, the cylinders on both sides push the crosshead body to further ensure that it is stably located within the clamping groove 11.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing fixture for machining crossheads, comprising a fixture base (1), characterized in that: The clamp seat (1) has a "U" shaped cross section with a clamping groove (11) at the top. Both sides of the top are provided with lifting grooves (2), and a lifting seat (3) is provided in the lifting groove (2). The lifting groove (2) passes through the bottom of the clamp seat (1) and has a first threaded hole (21). The bottom of the first threaded hole (21) is threaded upward to a first adjusting knob (4). The other end of the first adjusting knob (4) is rotatably connected to the lifting seat (3). Rotating the first adjusting knob (4) in both directions will cause the lifting seat (3) to rise / fall. A second threaded hole (31) is provided on the outer side of the two lifting seats (3) that are far apart. A second adjusting knob (5) is threaded into the second threaded hole (31) and connected to the adjacent lifting seat (3). The other end of the second adjusting knob (5) is rotatably connected to the upper clamping frame (6) inside the lifting seat (3). Rotating the two second adjusting knobs (5) in both directions will cause the upper clamping frame (6) to move closer to / away from the lifting seat (3). A third threaded hole (12) is symmetrically provided on the outer side of the clamping groove (11) on one side. A third adjusting knob (7) is threadedly connected to the outer side of the third threaded hole (12) facing the clamping groove (11). The other end of the third adjusting knob (7) is rotatably connected to the lower clamping frame (8) in the clamping seat (1). Rotating the third adjusting knob (7) in both directions will drive the lower clamping frame (8) to approach the other end of the clamping groove (11).

2. The fixing fixture for machining a crosshead according to claim 1, characterized in that: The clamp seat (1) is equipped with a support leg (13) at its bottom.

3. A fixing fixture for machining crossheads according to claim 1, characterized in that: The first adjustment knob (4), the second adjustment knob (5) and the third adjustment knob (7) are each composed of a rotating handle, a threaded rod and a rotating plate.

4. A fixing fixture for machining crossheads according to claim 3, characterized in that: The first adjustment knob (4), the second adjustment knob (5) and the third adjustment knob (7) are rotatably connected to the rotating groove (9) opened in the lifting seat (3), the upper clamping frame (6) and the lower clamping frame (8) through rotating plates. The cross-section of the rotating groove (9) is "convex".

5. A fixing fixture for machining crossheads according to claim 1, characterized in that: The clamping groove (11) has a through-hole design on both sides, which can be used with an external cylinder to push the crosshead body inside the clamping groove (11).

6. A fixing fixture for machining crossheads according to claim 1, characterized in that: The upper clamping frame (6) is built into the upper groove (61) of the lifting seat (3), and the upper clamping frame (6) is slidably connected to the upper groove (61). An anti-slip pad is adhered to the outside of the upper clamping frame (6).

7. A fixing fixture for machining crossheads according to claim 1, characterized in that: The lower clamping frame (8) is built into the lower groove (81) of the clamping seat (1), and the lower clamping frame (8) is slidably connected to the lower groove (81). An anti-slip pad is adhered to the outside of the lower clamping frame (8).

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