Fixture special for grinding guide rail bracket

Abstract

The utility model discloses a special fixture for grinding a guide rail bracket, which comprises a base, two first supports and two second supports are arranged at the upper end of the base, first clamping plates are arranged on the opposite sides of the two first supports, second clamping plates are arranged on the opposite sides of the two second supports, and the first clamping plates and the second clamping plates are arranged on the base. And two screw rods are arranged between the two first supports. The first clamping plate and the second clamping plate are arranged to clamp the guide rail frame, clamping of the first clamping plate to the head end and the tail end of the guide rail frame and clamping of the second clamping plate to the two sides of the outer end of the guide rail frame do not interfere with each other, the clamping effect of the first clamping plate and the clamping effect of the second clamping plate can be achieved in a separated mode, and better adjustability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of guide rail frame processing, in particular to a special fixture for grinding a guide rail frame. Background Art

[0002] The guide frame of a lathe is a part on the lathe used to support and guide the moving parts to move along a certain trajectory. Its functions include guiding the movement of the carrier, providing a smooth moving surface, and transmitting the force generated by cutting to the foundation or bed to reduce the impact on the parts being processed.

[0003] During the long-term operation of the lathe, the guide frame will inevitably wear, which will cause the machining accuracy of the machine tool to decrease. By grinding the guide rails, the machining accuracy of the machine tool can be effectively improved, ensuring that the quality of the processed parts meets the requirements, and at the same time, the service life of the lathe can be effectively extended.

[0004] When grinding the guide rail frame of the lathe, in order to ensure the grinding accuracy, the guide rail frame needs to be fixed by a clamp. However, the long strip shape of the guide rail frame requires the clamping position of the guide rail frame to be adjusted when grinding different parts thereof, so that the position of the clamp needs to be changed or the clamp needs to be replaced, which is cumbersome to operate and has low adjustability. Utility Model Content

[0005] The purpose of the utility model is to provide a special fixture for grinding a guide rail frame to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special fixture for grinding a guide rail frame, comprising a base, wherein two first supports and two second supports are arranged at the upper end of the base, a first clamping plate is arranged on the opposite side between the two first supports, a second clamping plate is arranged on the opposite side between the two second supports, and two screw rods are arranged between the two first supports.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Preferably, the angle between the two first supports and the two second supports is 90°.

[0009] Preferably, two screw rods are rotatably connected inside the base, and a first connecting plate is provided at the lower end of the first support, and the first connecting plate is threadedly connected to the screw rods.

[0010] Preferably, the second support is slidably connected to the base via a second connecting plate arranged at the lower end, a connecting plate is connected between the second connecting plate and the first connecting plate, and two ends of the connecting plate are hinged to the second connecting plate and the first connecting plate respectively.

[0011] Preferably, a second hydraulic rod is disposed inside the second support, the output end of the second hydraulic rod is fixed to a second clamping plate, the cross-section of the two second clamping plates is an "L"-shaped structure, and second rubber pads are pasted on the inner sides of the two second clamping plates.

[0012] Preferably, the screw rod is fixed to the upper end of the base, and a plurality of spherical rollers are evenly arranged on the upper end of the screw rod.

[0013] Preferably, a support wheel is provided on the lower side of the first clamping plate, and the support wheel is connected to the first clamping plate through connecting blocks on both sides. A scraper is provided on the outer end of the support wheel away from the first hydraulic rod, and the scraper is in contact with the first support.

[0014] Beneficial Effects

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] The utility model clamps the guide rail frame by arranging a first clamping plate and a second clamping plate. When the two screw rods rotate at the same time, the two first supports approach each other, and then the first hydraulic rod is started to drive the first clamping plate to move, and the first clamping plate is used to clamp the head and tail ends of the guide rail frame. At this time, the outer end of the guide rail frame can be polished. When the double-output shaft motor is started to drive the screw rod to reverse, the two first supports move away from each other and the two second supports approach each other. At this time, the second hydraulic rod is started to drive the second clamping plate to move, so that the two second clamping plates clamp the outer end of the guide rail frame. After the second clamping plate completes the clamping of the two sides of the guide rail frame, space is left at the tail ends of the guide rail frame for grinding operations, so that the clamping of the head and tail ends of the guide rail frame by the first clamping plate and the clamping of the two sides of the outer end of the guide rail frame by the second clamping plate do not interfere with each other, and the clamping effects of the two first clamping plates and the second clamping plates can be operated separately, which has better adjustability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the connection between the screw rod and the first connecting plate of the utility model;

[0019] Figure 3 It is a bottom view structural schematic diagram of the second connecting plate and the connecting plate of the utility model;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the first support of the utility model;

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the second support of the utility model.

[0022] In the figure: 1. base; 2. first support; 21. first hydraulic rod; 22. first connecting plate; 3. second support; 31. second hydraulic rod; 32. second connecting plate; 4. first clamping plate; 41. first rubber pad; 5. second clamping plate; 51. second rubber pad; 6. screw rod; 61. double-output shaft motor; 7. connecting plate; 8. support wheel; 81. connecting block; 82. scraper. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the embodiments of the present application, Figure 1-5 A special fixture for grinding a guide rail frame comprises a base 1, at the upper end of which two first supports 2 and two second supports 3 are arranged, the angle between the two first supports 2 and the two second supports 3 is 90°, and a first clamping plate 4 is arranged on the opposite side between the two first supports 2, and a second clamping plate 5 is arranged on the opposite side between the two second supports 3, the two first clamping plates 4 are used to clamp the head and tail ends of the guide rail frame, and the two second clamping plates 5 are used to clamp the outer ends of the guide rail frame.

[0025] Two screw rods 6 are rotatably connected inside the base 1, and a double-output shaft motor 61 is arranged between the two screw rods 6. The output shafts on both sides of the double-output shaft motor 61 are respectively connected to the two screw rods 6. The specific connection method can adopt the existing technology. When the double-output shaft motor 61 is started, the two screw rods 6 can be driven to rotate at the same time. At the same time, a first connecting plate 22 is arranged at the lower end of the first support 2. The first connecting plate 22 is threadedly connected to the screw rod 6, and the thread directions of the two screw rods 6 are opposite. Therefore, when the two screw rods 6 are rotated, the two first supports 2 can be driven to translate at the same time, and the translation directions between the two first supports 2 are opposite.

[0026] The second support 3 is slidably connected to the base 1 through a second connecting plate 32 arranged at the lower end, and a connecting plate 7 is connected between the second connecting plate 32 and the first connecting plate 22. The two ends of the connecting plate 7 are respectively hinged to the second connecting plate 32 and the first connecting plate 22, so that the second connecting plate 32 can be driven to translate through the transmission of the connecting plate 7 when the first connecting plate 22 translates. At this time, the two second supports 3 translate at the same time, and the translation directions are opposite. At the same time, through the transmission action of the connecting plate 7, when the translation direction between the two first supports 2 is to approach each other, the two second supports 3 move away from each other. Conversely, when the translation direction between the two first supports 2 is to move away from each other, the two second supports 3 approach each other.

[0027] Specifically, a first hydraulic rod 21 is provided inside the first support 2, and the output end of the first hydraulic rod 21 is fixed to the first clamping plate 4. In addition, a second hydraulic rod 31 is provided inside the second support 3, and the output end of the second hydraulic rod 31 is fixed to the second clamping plate 5. Starting the first hydraulic rod 21 can drive the first clamping plate 4 to move, and the two ends of the guide rail frame are clamped respectively by the two first clamping plates 4. Starting the second hydraulic rod 31 can drive the second clamping plate 5 to move, and the two sides of the outer end of the guide rail frame are clamped respectively by the two second clamping plates 5.

[0028] Furthermore, the longitudinal section of the second clamping plate 5 is an "L"-shaped structure so as to increase the contact surface between the second clamping plate 5 and the guide rail frame when clamping, thereby improving the clamping effect, and second rubber pads 51 are adhered to the inner sides of the two second clamping plates 5, and first rubber pads 41 are adhered to the opposite sides of the two first clamping plates 4 so as to improve the anti-slip effect when the first clamping plates 4 and the second clamping plates 5 respectively clamp the guide rail frame.

[0029] In a further embodiment, Figure 1 Two screw rods 6 are arranged between the two first supports 2, and the screw rods 6 are fixed to the upper end of the base 1. When the guide rail frame is placed on the base 1 for grinding and clamping, the bottom of the guide rail frame is supported by the screw rods 6, and a number of spherical rollers are evenly arranged on the upper ends of the screw rods 6. When the screw rods 6 support the guide rail frame, the spherical rollers can contact the bottom of the guide rail frame, so that when the first clamping plate 4 or the second clamping plate 5 clamps the guide rail frame, the guide rail frame will be pushed. At this time, the movement of the spherical rollers can reduce the friction on the bottom of the guide rail frame and reduce the wear of the guide rail frame.

[0030] In another embodiment, if Figure 1 , Figure 2 and Figure 4A support wheel 8 is provided on the lower side of the first clamping plate 4, and the support wheel 8 is connected to the first clamping plate 4 through connecting blocks 81 on both sides, wherein the support wheel 8 is rotatably connected to the inner side of the connecting block 81, and the connecting block 81 is fixed to the lower end of the first clamping plate 4, and a scraper 82 is provided on the outer end of the support wheel 8 away from the first hydraulic rod 21. The scraper 82 is fixed to the connecting blocks 81 on both sides, and the scraper 82 is in contact with the first support 2. When the first clamping plate 4 moves, the scraper 82 can clean up the grinding debris of some guide rail frames accumulated on the first support 2, and at the same time, the support wheel 8 also plays a supporting effect on the first clamping plate 4.

[0031] Working principle: first place the guide rail frame that needs to be polished on the screw rod 6, and then start the motor to drive the screw rod 6 to rotate. At this time, the two screw rods 6 rotate at the same time, so that the two first supports 2 are close to each other. When the first clamping plate 4 is close to the guide rail frame and the head and tail ends of the guide rail frame are in contact with the surface of the first support 2, start the first hydraulic rod 21 to drive the first clamping plate 4 to move, and clamp the head and tail ends of the guide rail frame through the first clamping plate 4. At this time, the outer ends of the guide rail frame can be polished. After the outer ends of the guide rail frame are polished, start the double-output shaft motor 61 to drive the screw rod 6 to reverse. At this time, the two first supports 2 move away from each other, and the first clamping plate 4 gradually stops. The guide rail frame is clamped again, and under the transmission action of the connecting plate 7, the two second supports 3 approach each other. At this time, the second hydraulic rod 31 is started to drive the second clamping plate 5 to move, so that the two second clamping plates 5 clamp the outer ends of the guide rail frame. After the second clamping plates 5 complete the clamping of the two sides of the guide rail frame, space is left at the end of the guide rail frame for grinding operations. At this time, the end of the guide rail frame can be ground, so that the clamping of the guide rail frame by the first clamping plate 4 at the head and tail ends does not interfere with the clamping of the guide rail frame by the second clamping plate 5 on the outer ends of the guide rail frame. In addition, the clamping effects of the two first clamping plates 4 and the second clamping plates 5 can be operated separately, which has better adjustability.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special fixture for grinding a guide rail frame, characterized in that: The invention comprises a base (1), wherein two first supports (2) and two second supports (3) are arranged at the upper end of the base (1), a first clamping plate (4) is arranged on the opposite side between the two first supports (2), a second clamping plate (5) is arranged on the opposite side between the two second supports (3), and two screw rods (6) are arranged between the two first supports (2).

2. The special fixture for grinding a guide rail frame according to claim 1, characterized in that: The included angle between the two first supports (2) and the two second supports (3) is 90°.

3. The special fixture for grinding a guide rail frame according to claim 1, characterized in that: Two screw rods (6) are rotatably connected inside the base (1), and a first connecting plate (22) is provided at the lower end of the first support (2), and the first connecting plate (22) is threadedly connected to the screw rod (6).

4. The special fixture for grinding a guide rail frame according to claim 3, characterized in that: The second support (3) is slidably connected to the base (1) via a second connecting plate (32) arranged at the lower end; a connecting plate (7) is connected between the second connecting plate (32) and the first connecting plate (22); and the two ends of the connecting plate (7) are respectively hinged to the second connecting plate (32) and the first connecting plate (22).

5. The special fixture for grinding a guide rail frame according to claim 1, characterized in that: A second hydraulic rod (31) is arranged inside the second support (3), and the output end of the second hydraulic rod (31) is fixed to a second clamping plate (5). The cross-section of the two second clamping plates (5) is an "L"-shaped structure, and the inner sides of the two second clamping plates (5) are both adhered with a second rubber pad (51).

6. The special fixture for grinding a guide rail frame according to claim 1, characterized in that: The screw rod (6) is fixed to the upper end of the base (1), and a plurality of spherical rollers are evenly arranged on the upper end of the screw rod (6).

7. The special fixture for grinding a guide rail frame according to claim 1, characterized in that: A support wheel (8) is provided on the lower side of the first clamping plate (4), and the support wheel (8) is connected to the first clamping plate (4) through connecting blocks (81) on both sides. A scraper (82) is provided on the side of the outer end of the support wheel (8) away from the first hydraulic rod (21), and the scraper (82) is in contact with the first support (2).

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