Composite lathe for tilt-shift lens of camera and machining method of composite lathe

Abstract

The invention discloses a composite lathe for a tilt-shift lens of a camera and a machining method of the composite lathe. The composite lathe comprises a spindle box and a feed mechanism. The spindle box comprises a jig clamping disc and a rotary driving system; the jig clamping disc comprises a disc body, an outer circle turning clamp and an inner circle turning clamp. The outer circle turning clamp is arranged at the center of the disc body, the inner circle turning clamp is arranged at the non-center of the disc body, the outer circle turning clamp and the inner circle turning clamp are used for clamping a first component and a second component respectively, and a cutting gap is formed between the first component and the second component; the feeding mechanism comprises a linear feeding driving part, an angle adjusting part and a cutting assembly. The cutting assembly comprises a cutter bar, a first cutter and a second cutter; the linear feeding driving part is used for driving the cutting assembly to reciprocate along a straight line; the angle adjusting part is used for adjusting the angle of the cutting assembly. According to the composite lathe, the outer arc surface of the first component and the inner arc surface of the second component are cut at the same time, the concentricity is guaranteed, and meanwhile the machining stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of material engineering processing, in particular to a compound lathe for a camera tilt-shift lens and a processing method thereof. Background Art

[0002] like Figure 1 As shown, it is a structural diagram of a camera tilt-shift lens 10, which includes a first component 11 and a second component 12. A ball 13 is provided between the outer arc surface 11a of the first component 11 and the inner arc surface 12a of the second component 12, and the first component 11 can slide smoothly around the second component 12.

[0003] During the production process, it is necessary to cut the outer arc surface 11a of the first component 11 and the inner arc surface 12a of the second component 12. During the cutting process, it is necessary to ensure the concentricity of the outer arc surface 11a and the inner arc surface 12a. In this way, the first component 11 can slide around the second component 12 accurately and smoothly, thereby improving product quality. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a compound lathe for a camera tilt-shift lens and a processing method thereof, so as to achieve simultaneous cutting of the outer arc surface of a first component and the inner arc surface of a second component, ensure the concentricity of the outer arc surface and the inner arc surface, and improve the stability of the processing.

[0005] The object of the present invention is achieved through the following technical solutions: A compound lathe for a camera tilt-shift lens, used for simultaneously cutting the outer arc surface of a first part and the inner arc surface of a second part, comprising: a spindle box and a tool feeding mechanism; The spindle box includes a fixture chuck and a rotation drive system drivingly connected to the fixture chuck, and the rotation drive system is used to drive the fixture chuck to rotate; The jig clamping plate includes: a plate body, an outer circle turning fixture, and an inner circle turning fixture; the outer circle turning fixture is located at the center of the plate body, and the inner circle turning fixture is located at a non-center position of the plate body; the outer circle turning fixture is used to clamp the first part, and the inner circle turning fixture is used to clamp the second part, forming a cutting gap between the first part and the second part; The tool feeding mechanism includes: a linear feed drive part, an angle adjustment part, and a cutting assembly; the cutting assembly includes: a tool rod, and a first cutting knife and a second cutting knife provided on the tool rod; the linear feed drive part is used to drive the cutting assembly to move back and forth along a straight line so that the first cutting knife and the second cutting knife enter and exit the cutting gap; the angle adjustment part is used to adjust the angle of the cutting assembly so that the first cutting knife and the second cutting knife rotate around the central axis of the tool rod.

[0006] In one embodiment, The external cylindrical turning fixture has two opposite first part clamping surfaces, each of which is used to clamp a first part. There are two inner circle turning fixtures, which are respectively located on both sides of the outer circle turning fixture. Each inner circle turning fixture has a second part clamping surface facing the first part clamping surface, and each second part clamping surface clamps a second part.

[0007] In one embodiment, the cross-section of the tool rod is square, the first cutting blade and the second cutting blade are respectively installed on two opposite sides of the tool rod, the first cutting blade has a first cutting edge protruding from the side of the tool rod, and the second cutting blade has a second cutting edge protruding from the side of the tool rod.

[0008] In one embodiment, the first cutting blade is detachably mounted on a side surface of the blade rod, and the second cutting blade is detachably mounted on a side surface of the blade rod.

[0009] In one embodiment, the tool feeding mechanism further includes a lateral adjustment portion; the lateral adjustment portion includes: a coarse adjustment handwheel mechanism and a fine adjustment handwheel mechanism; the coarse adjustment handwheel mechanism is used to perform coarse lateral adjustment of the cutting assembly, and the fine adjustment handwheel mechanism is used to perform fine lateral adjustment of the cutting assembly.

[0010] A method for machining a camera tilt-shift lens is implemented based on the above-mentioned compound lathe for camera tilt-shift lens, comprising the following steps: Step 1: Clamp the first part on the outer circle turning fixture, and clamp the second part on the inner circle turning fixture, forming a cutting gap between the first part and the second part; Step 2: driving the cutting assembly into the cutting gap by the linear feed drive unit, so that the first cutting blade and the second cutting blade do not contact the first component and the second component; Step 3: Start the spindle box, and the rotation drive system drives the fixture chuck to rotate, thereby driving the first part and the second part to rotate; Step 4: The cutting assembly is adjusted in angle by the angle adjustment unit, and the cutting assembly is driven to move back and forth by the linear feed drive unit, so that the first cutting blade and the second cutting blade cut the first part and the second part; Step 5, repeat step 4, adjust the cutting assembly several times with gradually increasing angles through the angle adjustment part, and perform several shallow to deep cutting on the first component and the second component to obtain outer arc surfaces and inner arc surfaces that meet the requirements.

[0011] In one embodiment, step six is also included, in which the spindle box is stopped, the rotation drive system no longer drives the fixture chuck to rotate, the first part and the second part stop rotating, and the first part and the second part are removed from the outer circle turning fixture and the inner circle turning fixture respectively.

[0012] A composite lathe for a camera tilt-shift lens and a processing method thereof of the present invention can simultaneously cut the outer arc surface of a first component and the inner arc surface of a second component, thereby ensuring the concentricity of the outer arc surface and the inner arc surface and improving the processing stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a structural diagram of a camera tilt-shift lens; Figure 2 A structural diagram of a composite lathe for a camera tilt-shift lens according to an embodiment of the present invention; Figure 3 for Figure 2 A partial view of a compound lathe for a camera tilt-shift lens is shown; Figure 4 for Figure 2 Exploded view of the headstock shown; Figure 5 is a schematic diagram showing that the first cutting blade and the second cutting blade do not contact the first part and the second part; Figure 6 Schematic diagram of the first cutting blade and the second cutting blade in contact with the first part and the second part. DETAILED DESCRIPTION

[0015] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0016] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0018] like Figure 1 and Figure 2 As shown, the present invention discloses a compound lathe 20 for a camera tilt-shift lens, which is used to simultaneously cut the outer arc surface 11 a of a first component 11 and the inner arc surface 12 a of a second component 12 .

[0019] like Figure 2 As shown, the compound lathe 20 for camera tilt-shift lens includes: a spindle box 100 and a tool feeding mechanism 200.

[0020] like Figure 3 As shown, the spindle box 100 includes a jig chuck 110 and a rotation drive system 120 drivingly connected to the jig chuck 110 , and the rotation drive system 120 is used to drive the jig chuck 110 to rotate.

[0021] like Figure 3 and Figure 4 As shown, the fixture clamping plate 110 includes: a plate body 111, an outer circle turning fixture 112, and an inner circle turning fixture 113. The outer circle turning fixture 112 is located at the center of the plate body 111, and the inner circle turning fixture 113 is located at a non-center position of the plate body 111. The outer circle turning fixture 112 is used to clamp the first part 11, and the inner circle turning fixture 113 is used to clamp the second part 12. A cutting gap 13 (such as Figure 5 and Figure 6 shown).

[0022] In the present invention, the outer cylindrical turning fixture 112 has two opposite first part clamping surfaces 112a (such as Figure 3 As shown in FIG1 ), each first part clamping surface 112a is respectively clamped with a first part 11. There are two inner circle turning fixtures 113, which are respectively located on both sides of the outer circle turning fixture 112. Each inner circle turning fixture 113 has a second part clamping surface 113a facing the first part clamping surface 112a (as shown in FIG1 ). Figure 3 As shown), each second component clamping surface 113a clamps a second component 12 respectively.

[0023] like Figure 2 As shown, the tool feeding mechanism 200 includes: a linear feed drive unit 210, an angle adjustment unit 220, and a cutting assembly 230. Figure 3 As shown, the cutting assembly 230 includes: a tool rod 231, and a first cutting blade 232 and a second cutting blade 233 provided on the tool rod 231. The linear feed drive unit 210 is used to drive the cutting assembly 230 to move back and forth along a straight line so that the first cutting blade 232 and the second cutting blade 233 enter and exit the cutting gap 13. The angle adjustment unit 220 is used to adjust the angle of the cutting assembly 230 (so that the tool rod 231 rotates along its axial direction) so that the first cutting blade 232 and the second cutting blade 233 rotate around the central axis of the tool rod 231 (such as Figure 5 and Figure 6 shown).

[0024] Specifically, the cross section of the knife bar 231 of the present invention is square, and the first cutting blade 232 and the second cutting blade 233 are respectively installed on two opposite sides of the knife bar 231. The first cutting blade 232 has a first cutting edge 232a (such as Figure 5 As shown in FIG. 2 ), the second cutting blade 233 has a second cutting edge 233a (as shown in FIG. 2 ) protruding from the side of the blade rod 231. Figure 5 shown).

[0025] Furthermore, the first cutting blade 232 is detachably mounted on the side of the cutter bar 231, and the second cutting blade 233 is detachably mounted on the side of the cutter bar 231. After being used for a period of time, the first cutting blade 232 and the second cutting blade 233 need to be removed and replaced.

[0026] like Figure 2As shown, in the present invention, the cutting mechanism 200 further includes a lateral adjustment unit 240. The lateral adjustment unit 240 comprises a coarse adjustment handwheel mechanism 241 and a fine adjustment handwheel mechanism 242. The coarse adjustment handwheel mechanism 241 is used to perform coarse lateral movement adjustments on the cutting assembly 230, while the fine adjustment handwheel mechanism 242 is used to perform fine lateral movement adjustments on the cutting assembly 230. By using the coarse adjustment handwheel mechanism 241 and the fine adjustment handwheel mechanism 242 to adjust the cutting assembly 230 laterally, the first cutting blade 232 and the second cutting blade 233 on the tool bar 231 can be more accurately aligned with the cutting gap 13, facilitating the entry and exit of the cutting blades.

[0027] The working principle of the compound lathe 20 for camera tilt-shift lens is described below: The first part 11 is clamped on the outer circle turning fixture 112, and the second part 12 is clamped on the inner circle turning fixture 113, so that a cutting gap 13 is formed between the first part 11 and the second part 12; in the present invention, the outer circle turning fixture 112 has two first part clamping surfaces 112a opposite to each other, and the two first parts 11 are respectively clamped on the two first part clamping surfaces 112a opposite to each other. Since the inner circle turning fixture 113 is also provided on both sides of the outer circle turning fixture 112, the two second parts 12 can be respectively clamped on the second part clamping surfaces 113a of the inner circle turning fixture 113. Such a structural design can, on the one hand, improve the stability of the fixture clamping plate 110 during the rotational motion, and on the other hand, can simultaneously process two sets of camera tilt-shift lenses 10, thereby improving production efficiency; After the parts are clamped, the cutting assembly 230 is driven by the linear feed drive unit 210 to enter the cutting gap 13. At this time, the first cutting blade 232 and the second cutting blade 233 do not contact the first part 11 and the second part 12 (such as Figure 5 As shown), the first cutting blade 232 and the second cutting blade 233 have not yet come into contact with the outer arc surface 11a of the first component 11 and the inner arc surface 12a of the second component 12; Then, the spindle box 100 can be started, and the rotation drive system 120 drives the fixture chuck 110 to rotate, thereby driving the first part 11 and the second part 12 to rotate. Since the first cutting blade 232 and the second cutting blade 233 have not yet contacted the outer arc surface 11a of the first part 11 and the inner arc surface 12a of the second part 12, they are in an empty cutting state at this time. The cutting assembly 230 is first angle-adjusted by the angle adjustment portion 220 so that the first cutting blade 232 and the second cutting blade 233 are in contact with the outer arc surface 11a of the first component 11 and the inner arc surface 12a of the second component 12 (as shown in FIG. Figure 6 shown); After the first angle adjustment is completed, the linear feed drive unit 210 drives the cutting assembly 230 to reciprocate in the cutting gap 13 to perform the first cutting of the first component 11 and the second component 12. The first cutting is only the initial cutting of the outer arc surface 11a of the first component 11 and the inner arc surface 12a of the second component 12, removing some waste material. After the first cutting is completed, the cutting assembly 230 is adjusted for a second time through the angle adjustment portion 220. The second angle adjustment is made to a greater angle than the first angle adjustment. This allows the outer arc surface 11a of the first component 11 and the inner arc surface 12a of the second component 12 to be further cut, with a cutting depth greater than the previous one. The above-mentioned actions are continuously repeated, and the cutting angle of the cutting assembly 230 is gradually expanded through the angle adjustment part 220, and the outer arc surface 11a of the first component 11 and the inner arc surface 12a of the second component 12 are cut from shallow to deep until the required size is cut out.

[0028] In the present invention, the first part 11 and the second part 12 are mainly clamped on the fixture clamping plate 110 at the same time. During the cutting process, the cutting assembly 230 is limited in the cutting gap 13 between the first part 11 and the second part 12. The first cutting blade 232 is used to cut the outer arc surface 11a of the first part 11, and the second cutting blade 233 is used to cut the inner arc surface 12a of the second part 12. Since the cutting assembly 230 is limited and clamped by the first part 11 and the second part 12 at the same time, it is not easy to shake, and precise cutting can be achieved.

[0029] The angle adjustment part 220 drives the tool rod 231 to rotate to achieve angle adjustment. Since the first cutting knife 232 and the second cutting knife 233 have a first cutting edge 232a and a second cutting edge 233a protruding from the side of the tool rod 231, the first cutting edge 232a and the second cutting edge 233a can gradually expand to cut the outer arc surface 11a and the inner arc surface 12a from shallow to deep, and cutting is achieved by a small amount and multiple times, thereby ensuring the stability of cutting.

[0030] At the same time, the first component 11 and the second component 12 both rotate around the central axis of the disk body 111. In this way, the concentricity of the outer arc surface 11a and the inner arc surface 12a can be well guaranteed, so that the first component 11 and the second component 12 have high concentricity after assembly, and the first component 11 can slide around the second component 12 accurately and smoothly.

[0031] The present invention also discloses a method for processing a camera tilt-shift lens, which is implemented based on the above-mentioned compound lathe 20 for camera tilt-shift lens and includes the following steps: Step 1: Clamp the first part on the outer circle turning fixture, and clamp the second part on the inner circle turning fixture, forming a cutting gap between the first part and the second part; Step 2: driving the cutting assembly into the cutting gap by the linear feed drive unit, so that the first cutting blade and the second cutting blade do not contact the first component and the second component; Step 3: Start the spindle box, and the rotation drive system drives the fixture chuck to rotate, thereby driving the first part and the second part to rotate; Step 4: The cutting assembly is adjusted in angle by the angle adjustment unit, and the cutting assembly is driven to move back and forth by the linear feed drive unit, so that the first cutting blade and the second cutting blade cut the first part and the second part; Step 5: Repeat step 4, adjust the cutting assembly several times with gradually increasing angles through the angle adjustment portion, and perform several shallow to deep cutting on the first component and the second component, so as to obtain outer arc surfaces and inner arc surfaces that meet the requirements; Step 6: Stop the spindle box, the rotation drive system no longer drives the fixture chuck to rotate, the first part and the second part stop rotating, and the first part and the second part are removed from the outer circle turning fixture and the inner circle turning fixture respectively.

[0032] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A compound lathe for a camera tilt-shift lens, used for simultaneously cutting the outer arc surface of a first component and the inner arc surface of a second component, characterized in that: include: Spindle box and tool feeding mechanism; The spindle box includes a fixture chuck and a rotation drive system drivingly connected to the fixture chuck, and the rotation drive system is used to drive the fixture chuck to rotate; The jig clamping plate includes: a plate body, an outer circle turning fixture, and an inner circle turning fixture; the outer circle turning fixture is located at the center of the plate body, and the inner circle turning fixture is located at a non-center position of the plate body; the outer circle turning fixture is used to clamp the first part, and the inner circle turning fixture is used to clamp the second part, forming a cutting gap between the first part and the second part; The tool feeding mechanism includes: a linear feed drive part, an angle adjustment part, and a cutting assembly; the cutting assembly includes: a tool rod, and a first cutting knife and a second cutting knife provided on the tool rod; the linear feed drive part is used to drive the cutting assembly to move back and forth along a straight line so that the first cutting knife and the second cutting knife enter and exit the cutting gap; the angle adjustment part is used to adjust the angle of the cutting assembly so that the first cutting knife and the second cutting knife rotate around the central axis of the tool rod.

2. The compound lathe for camera tilt-shift lens according to claim 1, characterized in that: The external cylindrical turning fixture has two opposite first part clamping surfaces, each of which is used to clamp a first part. There are two inner circle turning fixtures, which are respectively located on both sides of the outer circle turning fixture. Each inner circle turning fixture has a second part clamping surface facing the first part clamping surface, and each second part clamping surface clamps a second part.

3. The compound lathe for camera tilt-shift lens according to claim 1, characterized in that: The cross section of the tool rod is square, and the first cutting knife and the second cutting knife are respectively installed on two opposite sides of the tool rod. The first cutting knife has a first cutting edge protruding from the side of the tool rod, and the second cutting knife has a second cutting edge protruding from the side of the tool rod.

4. The compound lathe for camera tilt-shift lens according to claim 3, characterized in that: The first cutting blade is detachably mounted on a side surface of the blade rod, and the second cutting blade is detachably mounted on a side surface of the blade rod.

5. The compound lathe for camera tilt-shift lens according to claim 1, characterized in that: The tool feeding mechanism also includes a lateral adjustment part; the lateral adjustment part includes: a coarse adjustment handwheel mechanism and a fine adjustment handwheel mechanism; the coarse adjustment handwheel mechanism is used to perform coarse lateral adjustment on the cutting assembly, and the fine adjustment handwheel mechanism is used to perform fine lateral adjustment on the cutting assembly.

6. A method for processing a camera tilt-shift lens, characterized in that: The composite lathe for a camera tilt-shift lens according to any one of claims 1 to 5 is implemented, comprising the following steps: Step 1: Clamp the first part on the outer circle turning fixture, and clamp the second part on the inner circle turning fixture, forming a cutting gap between the first part and the second part; Step 2: driving the cutting assembly into the cutting gap by the linear feed drive unit, so that the first cutting blade and the second cutting blade do not contact the first component and the second component; Step 3: Start the spindle box, and the rotation drive system drives the fixture chuck to rotate, thereby driving the first part and the second part to rotate; Step 4: The cutting assembly is adjusted in angle by the angle adjustment unit, and the cutting assembly is driven to move back and forth by the linear feed drive unit, so that the first cutting blade and the second cutting blade cut the first part and the second part; Step 5, repeat step 4, adjust the cutting assembly several times with gradually increasing angles through the angle adjustment part, and perform several shallow to deep cutting on the first component and the second component to obtain outer arc surfaces and inner arc surfaces that meet the requirements.

7. The method for processing a camera tilt-shift lens according to claim 6, wherein: The method also includes step six, stopping the spindle box, the rotation drive system no longer drives the fixture chuck to rotate, the first component and the second component stop rotating, and the first component and the second component are removed from the outer circle turning fixture and the inner circle turning fixture respectively.

Images